2000-06-10 16:32:12 +00:00
|
|
|
/*****************************************************************************/
|
|
|
|
/* */
|
|
|
|
/* codegen.c */
|
|
|
|
/* */
|
|
|
|
/* 6502 code generator */
|
|
|
|
/* */
|
|
|
|
/* */
|
|
|
|
/* */
|
2000-07-29 11:49:34 +00:00
|
|
|
/* (C) 1998-2000 Ullrich von Bassewitz */
|
|
|
|
/* Wacholderweg 14 */
|
|
|
|
/* D-70597 Stuttgart */
|
|
|
|
/* EMail: uz@musoftware.de */
|
2000-06-10 16:32:12 +00:00
|
|
|
/* */
|
|
|
|
/* */
|
|
|
|
/* This software is provided 'as-is', without any expressed or implied */
|
|
|
|
/* warranty. In no event will the authors be held liable for any damages */
|
|
|
|
/* arising from the use of this software. */
|
|
|
|
/* */
|
|
|
|
/* Permission is granted to anyone to use this software for any purpose, */
|
|
|
|
/* including commercial applications, and to alter it and redistribute it */
|
|
|
|
/* freely, subject to the following restrictions: */
|
|
|
|
/* */
|
|
|
|
/* 1. The origin of this software must not be misrepresented; you must not */
|
|
|
|
/* claim that you wrote the original software. If you use this software */
|
|
|
|
/* in a product, an acknowledgment in the product documentation would be */
|
|
|
|
/* appreciated but is not required. */
|
|
|
|
/* 2. Altered source versions must be plainly marked as such, and must not */
|
|
|
|
/* be misrepresented as being the original software. */
|
|
|
|
/* 3. This notice may not be removed or altered from any source */
|
|
|
|
/* distribution. */
|
|
|
|
/* */
|
|
|
|
/*****************************************************************************/
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <string.h>
|
|
|
|
|
2000-07-29 11:49:34 +00:00
|
|
|
/* common */
|
|
|
|
#include "version.h"
|
|
|
|
#include "xmalloc.h"
|
2000-05-28 13:40:48 +00:00
|
|
|
|
2000-07-29 11:49:34 +00:00
|
|
|
/* cc65 */
|
2000-05-28 13:40:48 +00:00
|
|
|
#include "asmcode.h"
|
|
|
|
#include "asmlabel.h"
|
|
|
|
#include "check.h"
|
2000-06-14 08:18:19 +00:00
|
|
|
#include "cpu.h"
|
2000-05-28 13:40:48 +00:00
|
|
|
#include "error.h"
|
|
|
|
#include "global.h"
|
|
|
|
#include "litpool.h"
|
|
|
|
#include "optimize.h"
|
2000-07-29 11:49:34 +00:00
|
|
|
#include "segname.h"
|
2000-05-28 13:40:48 +00:00
|
|
|
#include "util.h"
|
|
|
|
#include "codegen.h"
|
|
|
|
|
2000-07-29 11:49:34 +00:00
|
|
|
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
/*****************************************************************************/
|
2000-07-29 11:49:34 +00:00
|
|
|
/* Data */
|
2000-05-28 13:40:48 +00:00
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Compiler relative stk ptr */
|
2000-07-29 11:49:34 +00:00
|
|
|
int oursp = 0;
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
/* Current segment */
|
2000-07-29 11:49:34 +00:00
|
|
|
segment_t CurSeg = SEG_INV;
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
/* Segment names */
|
|
|
|
static char* SegmentHints [4] = {
|
|
|
|
"seg:code", "seg:rodata", "seg:data", "seg:bss"
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2000-06-10 16:32:12 +00:00
|
|
|
|
2000-05-28 13:40:48 +00:00
|
|
|
/*****************************************************************************/
|
|
|
|
/* Helpers */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void typeerror (unsigned type)
|
|
|
|
/* Print an error message about an invalid operand type */
|
|
|
|
{
|
|
|
|
Internal ("Invalid type in CF flags: %04X, type = %u", type, type & CF_TYPE);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void CheckLocalOffs (unsigned Offs)
|
|
|
|
/* Check the offset into the stack for 8bit range */
|
|
|
|
{
|
|
|
|
if (Offs >= 256) {
|
|
|
|
/* Too many local vars */
|
|
|
|
AddCodeLine (";*** Too many locals");
|
|
|
|
Error (ERR_TOO_MANY_LOCALS);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static char* GetLabelName (unsigned flags, unsigned long label, unsigned offs)
|
|
|
|
{
|
|
|
|
static char lbuf [128]; /* Label name */
|
|
|
|
|
|
|
|
/* Create the correct label name */
|
|
|
|
switch (flags & CF_ADDRMASK) {
|
|
|
|
|
|
|
|
case CF_STATIC:
|
|
|
|
/* Static memory cell */
|
|
|
|
sprintf (lbuf, "L%04X+%u", (unsigned)(label & 0xFFFF), offs);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_EXTERNAL:
|
|
|
|
/* External label */
|
|
|
|
sprintf (lbuf, "_%s+%u", (char*) label, offs);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_ABSOLUTE:
|
|
|
|
/* Absolute address */
|
|
|
|
sprintf (lbuf, "$%04X", (unsigned)((label+offs) & 0xFFFF));
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_REGVAR:
|
|
|
|
/* Variable in register bank */
|
|
|
|
sprintf (lbuf, "regbank+%u", (unsigned)((label+offs) & 0xFFFF));
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
Internal ("Invalid address flags");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Return a pointer to the static buffer */
|
|
|
|
return lbuf;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Pre- and postamble */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_preamble (void)
|
|
|
|
/* Generate the assembler code preamble */
|
|
|
|
{
|
|
|
|
AddCodeLine ("; File generated by cc65 v %u.%u.%u", VER_MAJOR, VER_MINOR, VER_PATCH);
|
|
|
|
AddEmptyLine ();
|
|
|
|
|
|
|
|
/* Insert some object file options */
|
|
|
|
AddCodeLine (".fopt\t\tcompiler,\"cc65 v %u.%u.%u\"", VER_MAJOR, VER_MINOR, VER_PATCH);
|
|
|
|
AddEmptyLine ();
|
|
|
|
|
2000-06-14 08:18:19 +00:00
|
|
|
/* If we're producing code for some other CPU, switch the command set */
|
|
|
|
if (CPU == CPU_65C02) {
|
|
|
|
AddCodeLine (".pc02");
|
|
|
|
}
|
|
|
|
|
2000-05-28 13:40:48 +00:00
|
|
|
/* Allow auto import for runtime library routines */
|
|
|
|
AddCodeLine (".autoimport\ton");
|
|
|
|
|
2000-07-29 11:49:34 +00:00
|
|
|
/* Switch the assembler into case sensitive mode */
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine (".case\t\ton");
|
|
|
|
|
|
|
|
/* Tell the assembler if we want to generate debug info */
|
|
|
|
AddCodeLine (".debuginfo\t%s", (DebugInfo != 0)? "on" : "off");
|
|
|
|
|
|
|
|
/* Import the stack pointer for direct auto variable access */
|
|
|
|
AddCodeLine (".importzp\tsp, sreg, regsave, regbank, tmp1, ptr1");
|
|
|
|
|
|
|
|
/* Define long branch macros */
|
|
|
|
AddCodeLine (".macpack\tlongbranch");
|
|
|
|
AddEmptyLine ();
|
|
|
|
|
|
|
|
/* Define the ldax macro */
|
|
|
|
AddCodeLine (".macro ldax Value");
|
|
|
|
AddCodeLine (" lda #<(Value)");
|
|
|
|
AddCodeLine (" ldx #>(Value)");
|
|
|
|
AddCodeLine (".endmacro");
|
|
|
|
AddEmptyLine ();
|
|
|
|
|
|
|
|
/* Tell the optimizer that this is the end of the preamble */
|
|
|
|
AddCodeHint ("end_of_preamble");
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_postamble (void)
|
|
|
|
/* Generate assembler code postamble */
|
|
|
|
{
|
|
|
|
/* Tell the optimizer that this is the start of the postamble */
|
|
|
|
AddCodeHint ("start_of_postamble");
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Segment support */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
2000-06-08 21:11:48 +00:00
|
|
|
static void UseSeg (int NewSeg)
|
2000-05-28 13:40:48 +00:00
|
|
|
/* Switch to a specific segment */
|
|
|
|
{
|
|
|
|
if (CurSeg != NewSeg) {
|
|
|
|
CurSeg = NewSeg;
|
|
|
|
AddCodeLine (".segment\t\"%s\"", SegmentNames [CurSeg]);
|
|
|
|
AddCodeHint (SegmentHints [CurSeg]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_usecode (void)
|
|
|
|
/* Switch to the code segment */
|
|
|
|
{
|
|
|
|
UseSeg (SEG_CODE);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_userodata (void)
|
|
|
|
/* Switch to the read only data segment */
|
|
|
|
{
|
|
|
|
UseSeg (SEG_RODATA);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_usedata (void)
|
|
|
|
/* Switch to the data segment */
|
|
|
|
{
|
|
|
|
UseSeg (SEG_DATA);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_usebss (void)
|
|
|
|
/* Switch to the bss segment */
|
|
|
|
{
|
|
|
|
UseSeg (SEG_BSS);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
2000-07-29 11:49:34 +00:00
|
|
|
static void SegName (segment_t Seg, const char* Name)
|
2000-05-28 13:40:48 +00:00
|
|
|
/* Set the name of a segment */
|
|
|
|
{
|
|
|
|
/* Free the old name and set a new one */
|
2000-07-29 11:49:34 +00:00
|
|
|
NewSegName (Seg, Name);
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
/* If the new segment is the current segment, emit a segment directive
|
|
|
|
* with the new name.
|
|
|
|
*/
|
|
|
|
if (Seg == CurSeg) {
|
2000-06-08 21:11:48 +00:00
|
|
|
CurSeg = SEG_INV; /* Invalidate */
|
2000-05-28 13:40:48 +00:00
|
|
|
UseSeg (Seg);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_codename (const char* Name)
|
|
|
|
/* Set the name of the CODE segment */
|
|
|
|
{
|
|
|
|
SegName (SEG_CODE, Name);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_rodataname (const char* Name)
|
|
|
|
/* Set the name of the RODATA segment */
|
|
|
|
{
|
|
|
|
SegName (SEG_RODATA, Name);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_dataname (const char* Name)
|
|
|
|
/* Set the name of the DATA segment */
|
|
|
|
{
|
|
|
|
SegName (SEG_DATA, Name);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_bssname (const char* Name)
|
|
|
|
/* Set the name of the BSS segment */
|
|
|
|
{
|
|
|
|
SegName (SEG_BSS, Name);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Code */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
unsigned sizeofarg (unsigned flags)
|
|
|
|
/* Return the size of a function argument type that is encoded in flags */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
return (flags & CF_FORCECHAR)? 1 : 2;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
return 2;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
return 4;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
/* NOTREACHED */
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int pop (unsigned flags)
|
|
|
|
/* Pop an argument of the given size */
|
|
|
|
{
|
|
|
|
return oursp += sizeofarg (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int push (unsigned flags)
|
|
|
|
/* Push an argument of the given size */
|
|
|
|
{
|
|
|
|
return oursp -= sizeofarg (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static unsigned MakeByteOffs (unsigned Flags, unsigned Offs)
|
|
|
|
/* The value in Offs is an offset to an address in a/x. Make sure, an object
|
|
|
|
* of the type given in Flags can be loaded or stored into this address by
|
|
|
|
* adding part of the offset to the address in ax, so that the remaining
|
|
|
|
* offset fits into an index register. Return the remaining offset.
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
/* If the offset is too large for a byte register, add the high byte
|
|
|
|
* of the offset to the primary. Beware: We need a special correction
|
|
|
|
* if the offset in the low byte will overflow in the operation.
|
|
|
|
*/
|
|
|
|
unsigned O = Offs & ~0xFFU;
|
|
|
|
if ((Offs & 0xFF) > 256 - sizeofarg (Flags)) {
|
|
|
|
/* We need to add the low byte also */
|
|
|
|
O += Offs & 0xFF;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Do the correction if we need one */
|
|
|
|
if (O != 0) {
|
|
|
|
g_inc (CF_INT | CF_CONST, O);
|
|
|
|
Offs -= O;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Return the new offset */
|
|
|
|
return Offs;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Functions handling local labels */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_defloclabel (unsigned label)
|
|
|
|
/* Define a local label */
|
|
|
|
{
|
|
|
|
AddCodeLine ("L%04X:", label & 0xFFFF);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Functions handling global labels */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_defgloblabel (const char* Name)
|
|
|
|
/* Define a global label with the given name */
|
|
|
|
{
|
|
|
|
AddCodeLine ("_%s:", Name);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_defexport (const char* Name, int ZP)
|
|
|
|
/* Export the given label */
|
|
|
|
{
|
|
|
|
if (ZP) {
|
|
|
|
AddCodeLine ("\t.exportzp\t_%s", Name);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\t.export\t\t_%s", Name);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_defimport (const char* Name, int ZP)
|
|
|
|
/* Import the given label */
|
|
|
|
{
|
|
|
|
if (ZP) {
|
|
|
|
AddCodeLine ("\t.importzp\t_%s", Name);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\t.import\t\t_%s", Name);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Load functions for various registers */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void ldaconst (unsigned val)
|
|
|
|
/* Load a with a constant */
|
|
|
|
{
|
|
|
|
AddCodeLine ("\tlda\t#$%02X", val & 0xFF);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void ldxconst (unsigned val)
|
|
|
|
/* Load x with a constant */
|
|
|
|
{
|
|
|
|
AddCodeLine ("\tldx\t#$%02X", val & 0xFF);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void ldyconst (unsigned val)
|
|
|
|
/* Load y with a constant */
|
|
|
|
{
|
|
|
|
AddCodeLine ("\tldy\t#$%02X", val & 0xFF);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Function entry and exit */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Remember the argument size of a function. The variable is set by g_enter
|
|
|
|
* and used by g_leave. If the functions gets its argument size by the caller
|
|
|
|
* (variable param list or function without prototype), g_enter will set the
|
|
|
|
* value to -1.
|
|
|
|
*/
|
|
|
|
static int funcargs;
|
|
|
|
|
|
|
|
|
2000-06-08 20:27:05 +00:00
|
|
|
void g_enter (unsigned flags, unsigned argsize)
|
2000-06-08 21:11:48 +00:00
|
|
|
/* Function prologue */
|
2000-05-28 13:40:48 +00:00
|
|
|
{
|
|
|
|
if ((flags & CF_FIXARGC) != 0) {
|
|
|
|
/* Just remember the argument size for the leave */
|
|
|
|
funcargs = argsize;
|
|
|
|
} else {
|
|
|
|
funcargs = -1;
|
|
|
|
AddCodeLine ("\tjsr\tenter");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_leave (int flags, int val)
|
|
|
|
/* Function epilogue */
|
|
|
|
{
|
|
|
|
int k;
|
|
|
|
char buf [40];
|
|
|
|
|
|
|
|
/* How many bytes of locals do we have to drop? */
|
|
|
|
k = -oursp;
|
|
|
|
|
|
|
|
/* If we didn't have a variable argument list, don't call leave */
|
|
|
|
if (funcargs >= 0) {
|
|
|
|
|
|
|
|
/* Load a function return code if needed */
|
|
|
|
if ((flags & CF_CONST) != 0) {
|
|
|
|
g_getimmed (flags, val, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Drop stackframe or leave with rts */
|
|
|
|
k += funcargs;
|
|
|
|
if (k == 0) {
|
|
|
|
AddCodeLine ("\trts");
|
|
|
|
} else if (k <= 8) {
|
|
|
|
AddCodeLine ("\tjmp\tincsp%d", k);
|
|
|
|
} else {
|
|
|
|
CheckLocalOffs (k);
|
|
|
|
ldyconst (k);
|
|
|
|
AddCodeLine ("\tjmp\taddysp");
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
strcpy (buf, "\tjmp\tleave");
|
|
|
|
if (k) {
|
|
|
|
/* We've a stack frame to drop */
|
|
|
|
ldyconst (k);
|
|
|
|
strcat (buf, "y");
|
|
|
|
}
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
if ((flags & CF_TYPE) != CF_LONG) {
|
|
|
|
/* Constant int sized value given for return code */
|
|
|
|
if (val == 0) {
|
|
|
|
/* Special case: return 0 */
|
|
|
|
strcat (buf, "00");
|
|
|
|
} else if (((val >> 8) & 0xFF) == 0) {
|
|
|
|
/* Special case: constant with high byte zero */
|
|
|
|
ldaconst (val); /* Load low byte */
|
|
|
|
strcat (buf, "0");
|
|
|
|
} else {
|
|
|
|
/* Others: arbitrary constant value */
|
|
|
|
g_getimmed (flags, val, 0); /* Load value */
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* Constant long value: No shortcut possible */
|
|
|
|
g_getimmed (flags, val, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Output the jump */
|
|
|
|
AddCodeLine (buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Add an empty line after a function to make the code more readable */
|
|
|
|
AddEmptyLine ();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Register variables */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_save_regvars (int RegOffs, unsigned Bytes)
|
|
|
|
/* Save register variables */
|
|
|
|
{
|
|
|
|
/* Don't loop for up to two bytes */
|
|
|
|
if (Bytes == 1) {
|
|
|
|
|
|
|
|
AddCodeLine ("\tlda\tregbank%+d", RegOffs);
|
|
|
|
AddCodeLine ("\tjsr\tpusha");
|
|
|
|
|
|
|
|
} else if (Bytes == 2) {
|
|
|
|
|
|
|
|
AddCodeLine ("\tlda\tregbank%+d", RegOffs);
|
|
|
|
AddCodeLine ("\tldx\tregbank%+d", RegOffs+1);
|
|
|
|
AddCodeLine ("\tjsr\tpushax");
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* More than two bytes - loop */
|
|
|
|
unsigned Label = GetLabel ();
|
|
|
|
g_space (Bytes);
|
|
|
|
ldyconst (Bytes - 1);
|
|
|
|
ldxconst (Bytes);
|
|
|
|
g_defloclabel (Label);
|
|
|
|
AddCodeLine ("\tlda\tregbank%+d,x", RegOffs-1);
|
|
|
|
AddCodeLine ("\tsta\t(sp),y");
|
|
|
|
AddCodeLine ("\tdey");
|
|
|
|
AddCodeLine ("\tdex");
|
|
|
|
AddCodeLine ("\tbne\tL%04X", Label);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* We pushed stuff, correct the stack pointer */
|
|
|
|
oursp -= Bytes;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_restore_regvars (int StackOffs, int RegOffs, unsigned Bytes)
|
|
|
|
/* Restore register variables */
|
|
|
|
{
|
|
|
|
/* Calculate the actual stack offset and check it */
|
|
|
|
StackOffs -= oursp;
|
|
|
|
CheckLocalOffs (StackOffs);
|
|
|
|
|
|
|
|
/* Don't loop for up to two bytes */
|
|
|
|
if (Bytes == 1) {
|
|
|
|
|
|
|
|
ldyconst (StackOffs);
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
AddCodeLine ("\tsta\tregbank%+d", RegOffs);
|
|
|
|
|
|
|
|
} else if (Bytes == 2) {
|
|
|
|
|
|
|
|
ldyconst (StackOffs);
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
AddCodeLine ("\tsta\tregbank%+d", RegOffs);
|
|
|
|
AddCodeLine ("\tiny");
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
AddCodeLine ("\tsta\tregbank%+d", RegOffs+1);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* More than two bytes - loop */
|
|
|
|
unsigned Label = GetLabel ();
|
|
|
|
ldyconst (StackOffs+Bytes-1);
|
|
|
|
ldxconst (Bytes);
|
|
|
|
g_defloclabel (Label);
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
AddCodeLine ("\tsta\tregbank%+d,x", RegOffs-1);
|
|
|
|
AddCodeLine ("\tdey");
|
|
|
|
AddCodeLine ("\tdex");
|
|
|
|
AddCodeLine ("\tbne\tL%04X", Label);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Fetching memory cells */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_getimmed (unsigned flags, unsigned long val, unsigned offs)
|
|
|
|
/* Load a constant into the primary register */
|
|
|
|
{
|
|
|
|
if ((flags & CF_CONST) != 0) {
|
|
|
|
|
|
|
|
/* Numeric constant */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if ((flags & CF_FORCECHAR) != 0) {
|
|
|
|
ldaconst (val);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALL THROUGH */
|
|
|
|
case CF_INT:
|
|
|
|
ldxconst ((val >> 8) & 0xFF);
|
|
|
|
ldaconst (val & 0xFF);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (val < 0x100) {
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
AddCodeLine ("\tstx\tsreg+1");
|
|
|
|
AddCodeLine ("\tstx\tsreg");
|
|
|
|
AddCodeLine ("\tlda\t#$%02X", (unsigned char) val);
|
|
|
|
} else if ((val & 0xFFFF00FF) == 0) {
|
|
|
|
AddCodeLine ("\tlda\t#$00");
|
|
|
|
AddCodeLine ("\tsta\tsreg+1");
|
|
|
|
AddCodeLine ("\tsta\tsreg");
|
|
|
|
AddCodeLine ("\tldx\t#$%02X", (unsigned char) (val >> 8));
|
|
|
|
} else if ((val & 0xFFFF0000) == 0 && FavourSize == 0) {
|
|
|
|
AddCodeLine ("\tlda\t#$00");
|
|
|
|
AddCodeLine ("\tsta\tsreg+1");
|
|
|
|
AddCodeLine ("\tsta\tsreg");
|
|
|
|
AddCodeLine ("\tlda\t#$%02X", (unsigned char) val);
|
|
|
|
AddCodeLine ("\tldx\t#$%02X", (unsigned char) (val >> 8));
|
|
|
|
} else if ((val & 0xFFFFFF00) == 0xFFFFFF00) {
|
|
|
|
AddCodeLine ("\tldx\t#$FF");
|
|
|
|
AddCodeLine ("\tstx\tsreg+1");
|
|
|
|
AddCodeLine ("\tstx\tsreg");
|
|
|
|
if ((val & 0xFF) == 0xFF) {
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tlda\t#$%02X", (unsigned char) val);
|
|
|
|
}
|
|
|
|
} else if ((val & 0xFFFF00FF) == 0xFFFF00FF) {
|
|
|
|
AddCodeLine ("\tlda\t#$FF");
|
|
|
|
AddCodeLine ("\tsta\tsreg+1");
|
|
|
|
AddCodeLine ("\tsta\tsreg");
|
|
|
|
AddCodeLine ("\tldx\t#$%02X", (unsigned char) (val >> 8));
|
|
|
|
} else {
|
|
|
|
/* Call a subroutine that will load following value */
|
|
|
|
AddCodeLine ("\tjsr\tldeax");
|
|
|
|
AddCodeLine ("\t.dword\t$%08lX", val & 0xFFFFFFFF);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
break;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* Some sort of label */
|
|
|
|
const char* Label = GetLabelName (flags, val, offs);
|
|
|
|
|
|
|
|
/* Load the address into the primary */
|
|
|
|
AddCodeLine ("\tldax\t%s", Label);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_getstatic (unsigned flags, unsigned long label, unsigned offs)
|
|
|
|
/* Fetch an static memory cell into the primary register */
|
|
|
|
{
|
|
|
|
/* Create the correct label name */
|
|
|
|
char* lbuf = GetLabelName (flags, label, offs);
|
|
|
|
|
|
|
|
/* Check the size and generate the correct load operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if ((flags & CF_FORCECHAR) || (flags & CF_TEST)) {
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf); /* load A from the label */
|
|
|
|
} else {
|
|
|
|
ldxconst (0);
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf); /* load A from the label */
|
|
|
|
if (!(flags & CF_UNSIGNED)) {
|
|
|
|
/* Must sign extend */
|
|
|
|
AddCodeLine ("\tbpl\t*+3");
|
|
|
|
AddCodeLine ("\tdex");
|
|
|
|
AddCodeHint ("x:!"); /* X is invalid now */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
if (flags & CF_TEST) {
|
|
|
|
AddCodeLine ("\tora\t%s+1", lbuf);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tldx\t%s+1", lbuf);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (flags & CF_TEST) {
|
|
|
|
AddCodeLine ("\tlda\t%s+3", lbuf);
|
|
|
|
AddCodeLine ("\tora\t%s+2", lbuf);
|
|
|
|
AddCodeLine ("\tora\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\tora\t%s+0", lbuf);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tlda\t%s+3", lbuf);
|
|
|
|
AddCodeLine ("\tsta\tsreg+1");
|
|
|
|
AddCodeLine ("\tlda\t%s+2", lbuf);
|
|
|
|
AddCodeLine ("\tsta\tsreg");
|
|
|
|
AddCodeLine ("\tldx\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_getlocal (unsigned flags, int offs)
|
|
|
|
/* Fetch specified local object (local var). */
|
|
|
|
{
|
|
|
|
offs -= oursp;
|
|
|
|
CheckLocalOffs (offs);
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if ((flags & CF_FORCECHAR) || (flags & CF_TEST)) {
|
2000-06-14 16:58:52 +00:00
|
|
|
if (CPU == CPU_65C02 && offs == 0) {
|
|
|
|
AddCodeLine ("\tlda\t(sp)");
|
|
|
|
} else {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
}
|
2000-05-28 13:40:48 +00:00
|
|
|
} else {
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
AddCodeLine ("\tlda\t(sp,x)");
|
|
|
|
} else {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
}
|
|
|
|
if ((flags & CF_UNSIGNED) == 0) {
|
|
|
|
AddCodeLine ("\tbpl\t*+3");
|
|
|
|
AddCodeLine ("\tdex");
|
|
|
|
AddCodeHint ("x:!"); /* X is invalid now */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
CheckLocalOffs (offs + 1);
|
|
|
|
if (flags & CF_TEST) {
|
|
|
|
ldyconst (offs + 1);
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
AddCodeLine ("\tdey");
|
|
|
|
AddCodeLine ("\tora\t(sp),y");
|
|
|
|
} else {
|
|
|
|
if (FavourSize) {
|
|
|
|
if (offs) {
|
|
|
|
ldyconst (offs+1);
|
|
|
|
AddCodeLine ("\tjsr\tldaxysp");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tldax0sp");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ldyconst (offs + 1);
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tdey");
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (offs) {
|
|
|
|
ldyconst (offs+3);
|
|
|
|
AddCodeLine ("\tjsr\tldeaxysp");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tldeax0sp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_getind (unsigned flags, unsigned offs)
|
|
|
|
/* Fetch the specified object type indirect through the primary register
|
|
|
|
* into the primary register
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
/* If the offset is greater than 255, add the part that is > 255 to
|
|
|
|
* the primary. This way we get an easy addition and use the low byte
|
|
|
|
* as the offset
|
|
|
|
*/
|
|
|
|
offs = MakeByteOffs (flags, offs);
|
|
|
|
|
|
|
|
/* Handle the indirect fetch */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
/* Character sized */
|
|
|
|
if (offs) {
|
|
|
|
ldyconst (offs);
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tldauidx");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tldaidx");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
if (FavourSize) {
|
|
|
|
AddCodeLine ("\tjsr\tldaui");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tsta\tptr1");
|
|
|
|
AddCodeLine ("\tstx\tptr1+1");
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
AddCodeLine ("\tlda\t(ptr1,x)");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tldai");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_TEST) {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tsta\tptr1");
|
|
|
|
AddCodeLine ("\tstx\tptr1+1");
|
|
|
|
AddCodeLine ("\tlda\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tiny");
|
|
|
|
AddCodeLine ("\tora\t(ptr1),y");
|
|
|
|
} else {
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tjsr\tldaxi");
|
|
|
|
} else {
|
|
|
|
ldyconst (offs+1);
|
|
|
|
AddCodeLine ("\tjsr\tldaxidx");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tjsr\tldeaxi");
|
|
|
|
} else {
|
|
|
|
ldyconst (offs+3);
|
|
|
|
AddCodeLine ("\tjsr\tldeaxidx");
|
|
|
|
}
|
|
|
|
if (flags & CF_TEST) {
|
|
|
|
AddCodeLine ("\tjsr\ttsteax");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-06-14 08:18:19 +00:00
|
|
|
|
2000-05-28 13:40:48 +00:00
|
|
|
void g_leasp (int offs)
|
|
|
|
/* Fetch the address of the specified symbol into the primary register */
|
|
|
|
{
|
|
|
|
/* Calculate the offset relative to sp */
|
|
|
|
offs -= oursp;
|
|
|
|
|
|
|
|
/* For value 0 we do direct code */
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tlda\tsp");
|
|
|
|
AddCodeLine ("\tldx\tsp+1");
|
|
|
|
} else {
|
|
|
|
if (FavourSize) {
|
2000-06-10 16:32:12 +00:00
|
|
|
ldaconst (offs); /* Load A with offset value */
|
|
|
|
AddCodeLine ("\tjsr\tleaasp"); /* Load effective address */
|
2000-05-28 13:40:48 +00:00
|
|
|
} else {
|
2000-06-14 21:01:37 +00:00
|
|
|
if (CPU == CPU_65C02 && offs == 1) {
|
|
|
|
AddCodeLine ("\tlda\tsp");
|
|
|
|
AddCodeLine ("\tldx\tsp+1");
|
|
|
|
AddCodeLine ("\tina");
|
|
|
|
AddCodeLine ("\tbne\t*+3");
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
AddCodeHint ("x:!"); /* Invalidate X */
|
|
|
|
} else {
|
|
|
|
ldaconst (offs);
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tldx\tsp+1");
|
|
|
|
AddCodeLine ("\tadc\tsp");
|
|
|
|
AddCodeLine ("\tbcc\t*+3");
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
AddCodeHint ("x:!"); /* Invalidate X */
|
|
|
|
}
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Store into memory */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_putstatic (unsigned flags, unsigned long label, unsigned offs)
|
|
|
|
/* Store the primary register into the specified static memory cell */
|
|
|
|
{
|
|
|
|
/* Create the correct label name */
|
|
|
|
char* lbuf = GetLabelName (flags, label, offs);
|
|
|
|
|
|
|
|
/* Check the size and generate the correct store operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tstx\t%s+1", lbuf);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tstx\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\tldy\tsreg");
|
|
|
|
AddCodeLine ("\tsty\t%s+2", lbuf);
|
|
|
|
AddCodeLine ("\tldy\tsreg+1");
|
|
|
|
AddCodeLine ("\tsty\t%s+3", lbuf);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_putlocal (unsigned flags, int offs)
|
|
|
|
/* Put data into local object. */
|
|
|
|
{
|
|
|
|
offs -= oursp;
|
|
|
|
CheckLocalOffs (offs);
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
2000-06-14 16:58:52 +00:00
|
|
|
if (CPU == CPU_65C02 && offs == 0) {
|
|
|
|
AddCodeLine ("\tsta\t(sp)");
|
|
|
|
} else {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tsta\t(sp),y");
|
|
|
|
}
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (offs) {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\tstaxysp");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tstax0sp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (offs) {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\tsteaxysp");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tsteax0sp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_putind (unsigned flags, unsigned offs)
|
|
|
|
/* Store the specified object type in the primary register at the address
|
|
|
|
* on the top of the stack
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
/* We cannot currently handle more than byte sized offsets */
|
|
|
|
if (offs > 256 - sizeofarg (flags)) {
|
|
|
|
Internal ("g_putind: Large offsets not implemented");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (offs) {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\tstaspidx");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tstaspp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (offs) {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\tstaxspidx");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tstaxspp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (offs) {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\tsteaxspidx");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tsteaxspp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Pop the argument which is always a pointer */
|
|
|
|
pop (CF_PTR);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* type conversion and similiar stuff */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_toslong (unsigned flags)
|
|
|
|
/* Make sure, the value on TOS is a long. Convert if necessary */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\ttosulong");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\ttoslong");
|
|
|
|
}
|
|
|
|
push (CF_INT);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_tosint (unsigned flags)
|
|
|
|
/* Make sure, the value on TOS is an int. Convert if necessary */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\ttosint");
|
|
|
|
pop (CF_INT);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_reglong (unsigned flags)
|
|
|
|
/* Make sure, the value in the primary register a long. Convert if necessary */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
if (FavourSize) {
|
|
|
|
AddCodeLine ("\tjsr\taxulong");
|
|
|
|
} else {
|
|
|
|
ldyconst (0);
|
|
|
|
AddCodeLine ("\tsty\tsreg");
|
|
|
|
AddCodeLine ("\tsty\tsreg+1");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\taxlong");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
unsigned g_typeadjust (unsigned lhs, unsigned rhs)
|
|
|
|
/* Adjust the integer operands before doing a binary operation. lhs is a flags
|
|
|
|
* value, that corresponds to the value on TOS, rhs corresponds to the value
|
|
|
|
* in (e)ax. The return value is the the flags value for the resulting type.
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
unsigned ltype, rtype;
|
|
|
|
unsigned result;
|
|
|
|
|
|
|
|
/* Get the type spec from the flags */
|
|
|
|
ltype = lhs & CF_TYPE;
|
|
|
|
rtype = rhs & CF_TYPE;
|
|
|
|
|
|
|
|
/* Check if a conversion is needed */
|
|
|
|
if (ltype == CF_LONG && rtype != CF_LONG && (rhs & CF_CONST) == 0) {
|
|
|
|
/* We must promote the primary register to long */
|
|
|
|
g_reglong (rhs);
|
|
|
|
/* Get the new rhs type */
|
|
|
|
rhs = (rhs & ~CF_TYPE) | CF_LONG;
|
|
|
|
rtype = CF_LONG;
|
|
|
|
} else if (ltype != CF_LONG && (lhs & CF_CONST) == 0 && rtype == CF_LONG) {
|
|
|
|
/* We must promote the lhs to long */
|
|
|
|
if (lhs & CF_REG) {
|
|
|
|
g_reglong (lhs);
|
|
|
|
} else {
|
|
|
|
g_toslong (lhs);
|
|
|
|
}
|
|
|
|
/* Get the new rhs type */
|
|
|
|
lhs = (lhs & ~CF_TYPE) | CF_LONG;
|
|
|
|
ltype = CF_LONG;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Determine the result type for the operation:
|
|
|
|
* - The result is const if both operands are const.
|
|
|
|
* - The result is unsigned if one of the operands is unsigned.
|
|
|
|
* - The result is long if one of the operands is long.
|
|
|
|
* - Otherwise the result is int sized.
|
|
|
|
*/
|
|
|
|
result = (lhs & CF_CONST) & (rhs & CF_CONST);
|
|
|
|
result |= (lhs & CF_UNSIGNED) | (rhs & CF_UNSIGNED);
|
|
|
|
if (rtype == CF_LONG || ltype == CF_LONG) {
|
|
|
|
result |= CF_LONG;
|
|
|
|
} else {
|
|
|
|
result |= CF_INT;
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
unsigned g_typecast (unsigned lhs, unsigned rhs)
|
|
|
|
/* Cast the value in the primary register to the operand size that is flagged
|
|
|
|
* by the lhs value. Return the result value.
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
unsigned ltype, rtype;
|
|
|
|
|
|
|
|
/* Get the type spec from the flags */
|
|
|
|
ltype = lhs & CF_TYPE;
|
|
|
|
rtype = rhs & CF_TYPE;
|
|
|
|
|
|
|
|
/* Check if a conversion is needed */
|
|
|
|
if (ltype == CF_LONG && rtype != CF_LONG && (rhs & CF_CONST) == 0) {
|
|
|
|
/* We must promote the primary register to long */
|
|
|
|
g_reglong (rhs);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Do not need any other action. If the left type is int, and the primary
|
|
|
|
* register is long, it will be automagically truncated. If the right hand
|
|
|
|
* side is const, it is not located in the primary register and handled by
|
|
|
|
* the expression parser code.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/* Result is const if the right hand side was const */
|
|
|
|
lhs |= (rhs & CF_CONST);
|
|
|
|
|
|
|
|
/* The resulting type is that of the left hand side (that's why you called
|
|
|
|
* this function :-)
|
|
|
|
*/
|
|
|
|
return lhs;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_scale (unsigned flags, long val)
|
|
|
|
/* Scale the value in the primary register by the given value. If val is positive,
|
|
|
|
* scale up, is val is negative, scale down. This function is used to scale
|
|
|
|
* the operands or results of pointer arithmetic by the size of the type, the
|
|
|
|
* pointer points to.
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
int p2;
|
|
|
|
|
|
|
|
/* Value may not be zero */
|
|
|
|
if (val == 0) {
|
|
|
|
Internal ("Data type has no size");
|
|
|
|
} else if (val > 0) {
|
|
|
|
|
|
|
|
/* Scale up */
|
|
|
|
if ((p2 = powerof2 (val)) > 0 && p2 <= 3) {
|
|
|
|
|
|
|
|
/* Factor is 2, 4 or 8, use special function */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
while (p2--) {
|
|
|
|
AddCodeLine ("\tasl\ta");
|
2000-06-14 16:58:52 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (FavourSize || p2 >= 3) {
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tshlax%d", p2);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\taslax%d", p2);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tstx\ttmp1");
|
|
|
|
while (p2--) {
|
|
|
|
AddCodeLine ("\tasl\ta");
|
|
|
|
AddCodeLine ("\trol\ttmp1");
|
|
|
|
}
|
|
|
|
AddCodeLine ("\tldx\ttmp1");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tshleax%d", p2);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tasleax%d", p2);
|
|
|
|
}
|
|
|
|
break;
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
} else if (val != 1) {
|
|
|
|
|
|
|
|
/* Use a multiplication instead */
|
|
|
|
g_mul (flags | CF_CONST, val);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* Scale down */
|
|
|
|
val = -val;
|
|
|
|
if ((p2 = powerof2 (val)) > 0 && p2 <= 3) {
|
|
|
|
|
|
|
|
/* Factor is 2, 4 or 8, use special function */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
while (p2--) {
|
|
|
|
AddCodeLine ("\tlsr\ta");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
} else if (p2 <= 2) {
|
|
|
|
AddCodeLine ("\tcmp\t#$80");
|
|
|
|
AddCodeLine ("\tror\ta");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
if (FavourSize || p2 >= 3) {
|
|
|
|
AddCodeLine ("\tjsr\tlsrax%d", p2);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tstx\ttmp1");
|
|
|
|
while (p2--) {
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tlsr\ttmp1");
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tror\ta");
|
|
|
|
}
|
|
|
|
AddCodeLine ("\tldx\ttmp1");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (FavourSize || p2 >= 3) {
|
|
|
|
AddCodeLine ("\tjsr\tasrax%d", p2);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tstx\ttmp1");
|
|
|
|
while (p2--) {
|
|
|
|
AddCodeLine ("\tcpx\t#$80");
|
|
|
|
AddCodeLine ("\tror\ttmp1");
|
|
|
|
AddCodeLine ("\tror\ta");
|
|
|
|
}
|
|
|
|
AddCodeLine ("\tldx\ttmp1");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tlsreax%d", p2);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tasreax%d", p2);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
} else if (val != 1) {
|
|
|
|
|
|
|
|
/* Use a division instead */
|
|
|
|
g_div (flags | CF_CONST, val);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
2000-06-14 16:58:52 +00:00
|
|
|
/* Adds and subs of variables fix a fixed address */
|
2000-05-28 13:40:48 +00:00
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_addlocal (unsigned flags, int offs)
|
|
|
|
/* Add a local variable to ax */
|
|
|
|
{
|
|
|
|
/* Correct the offset and check it */
|
|
|
|
offs -= oursp;
|
|
|
|
CheckLocalOffs (offs);
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
AddCodeLine ("\tldy\t#$%02X", offs & 0xFF);
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t(sp),y");
|
|
|
|
AddCodeLine ("\tbcc\t*+3");
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
AddCodeHint ("x:!");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tldy\t#$%02X", offs & 0xFF);
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t(sp),y");
|
|
|
|
AddCodeLine ("\tpha");
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
AddCodeLine ("\tiny");
|
|
|
|
AddCodeLine ("\tadc\t(sp),y");
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tpla");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
/* Do it the old way */
|
|
|
|
g_push (flags, 0);
|
|
|
|
g_getlocal (flags, offs);
|
|
|
|
g_add (flags, 0);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_addstatic (unsigned flags, unsigned long label, unsigned offs)
|
|
|
|
/* Add a static variable to ax */
|
|
|
|
{
|
|
|
|
/* Create the correct label name */
|
|
|
|
char* lbuf = GetLabelName (flags, label, offs);
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tbcc\t*+3");
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
AddCodeHint ("x:!");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t%s", lbuf);
|
|
|
|
AddCodeLine ("\ttay");
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
AddCodeLine ("\tadc\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\ttya");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
/* Do it the old way */
|
|
|
|
g_push (flags, 0);
|
|
|
|
g_getstatic (flags, label, offs);
|
|
|
|
g_add (flags, 0);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Compares of ax with a variable with fixed address */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_cmplocal (unsigned flags, int offs)
|
|
|
|
/* Compare a local variable to ax */
|
|
|
|
{
|
|
|
|
Internal ("g_cmplocal not implemented");
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_cmpstatic (unsigned flags, unsigned label, unsigned offs)
|
|
|
|
/* Compare a static variable to ax */
|
|
|
|
{
|
|
|
|
Internal ("g_cmpstatic not implemented");
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Special op= functions */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_addeqstatic (unsigned flags, unsigned long label, unsigned offs,
|
|
|
|
unsigned long val)
|
|
|
|
/* Emit += for a static variable */
|
|
|
|
{
|
|
|
|
/* Create the correct label name */
|
|
|
|
char* lbuf = GetLabelName (flags, label, offs);
|
|
|
|
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
if (val == 1) {
|
|
|
|
AddCodeLine ("\tinc\t%s", lbuf);
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
} else {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (int)(val & 0xFF));
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
}
|
2000-05-28 13:40:48 +00:00
|
|
|
} else {
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
}
|
2000-05-28 13:40:48 +00:00
|
|
|
if ((flags & CF_UNSIGNED) == 0) {
|
|
|
|
AddCodeLine ("\tbpl\t*+3");
|
|
|
|
AddCodeLine ("\tdex");
|
|
|
|
AddCodeHint ("x:!"); /* Invalidate X */
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
if (val == 1) {
|
|
|
|
label = GetLabel ();
|
|
|
|
AddCodeLine ("\tinc\t%s", lbuf);
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tbne\tL%04X", (int)label);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tinc\t%s+1", lbuf);
|
|
|
|
g_defloclabel (label);
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t%s", lbuf); /* Hmmm... */
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tldx\t%s+1", lbuf);
|
|
|
|
} else {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (int)(val & 0xFF));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
if (val < 0x100) {
|
|
|
|
label = GetLabel ();
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tbcc\tL%04X", (int)label);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tinc\t%s+1", lbuf);
|
|
|
|
g_defloclabel (label);
|
|
|
|
AddCodeLine ("\tldx\t%s+1", lbuf);
|
|
|
|
} else {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tadc\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\tsta\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
AddCodeLine ("\tadc\t%s+1", lbuf);
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tsta\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
if (val < 0x100) {
|
|
|
|
AddCodeLine ("\tldy\t#<(%s)", lbuf);
|
|
|
|
AddCodeLine ("\tsty\tptr1");
|
|
|
|
AddCodeLine ("\tldy\t#>(%s+1)", lbuf);
|
|
|
|
if (val == 1) {
|
|
|
|
AddCodeLine ("\tjsr\tladdeq1");
|
|
|
|
} else {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (int)(val & 0xFF));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tladdeqa");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
g_getstatic (flags, label, offs);
|
|
|
|
g_inc (flags, val);
|
|
|
|
g_putstatic (flags, label, offs);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tldy\t#<(%s)", lbuf);
|
|
|
|
AddCodeLine ("\tsty\tptr1");
|
|
|
|
AddCodeLine ("\tldy\t#>(%s+1)", lbuf);
|
|
|
|
AddCodeLine ("\tjsr\tladdeq");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_addeqlocal (unsigned flags, int offs, unsigned long val)
|
|
|
|
/* Emit += for a local variable */
|
|
|
|
{
|
|
|
|
/* Calculate the true offset, check it, load it into Y */
|
|
|
|
offs -= oursp;
|
|
|
|
CheckLocalOffs (offs);
|
|
|
|
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-06-14 16:58:52 +00:00
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
AddCodeLine ("\tclc");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (int)(val & 0xFF));
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tadc\t(sp,x)");
|
|
|
|
AddCodeLine ("\tsta\t(sp,x)");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t(sp,x)");
|
|
|
|
AddCodeLine ("\tsta\t(sp,x)");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
AddCodeLine ("\tclc");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (int)(val & 0xFF));
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tadc\t(sp),y");
|
|
|
|
AddCodeLine ("\tsta\t(sp),y");
|
|
|
|
} else {
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tclc");
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tadc\t(sp),y");
|
|
|
|
AddCodeLine ("\tsta\t(sp),y");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ((flags & CF_UNSIGNED) == 0) {
|
|
|
|
AddCodeLine ("\tbpl\t*+3");
|
|
|
|
AddCodeLine ("\tdex");
|
|
|
|
AddCodeHint ("x:!"); /* Invalidate X */
|
|
|
|
}
|
|
|
|
break;
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
g_getimmed (flags, val, 0);
|
|
|
|
}
|
|
|
|
if (offs == 0) {
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tjsr\taddeq0sp");
|
2000-05-28 13:40:48 +00:00
|
|
|
} else {
|
2000-06-14 16:58:52 +00:00
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\taddeqysp");
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
g_getimmed (flags, val, 0);
|
|
|
|
}
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tjsr\tladdeq0sp");
|
|
|
|
} else {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\tladdeqysp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_addeqind (unsigned flags, unsigned offs, unsigned long val)
|
|
|
|
/* Emit += for the location with address in ax */
|
|
|
|
{
|
|
|
|
/* If the offset is too large for a byte register, add the high byte
|
|
|
|
* of the offset to the primary. Beware: We need a special correction
|
|
|
|
* if the offset in the low byte will overflow in the operation.
|
|
|
|
*/
|
|
|
|
offs = MakeByteOffs (flags, offs);
|
|
|
|
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
AddCodeLine ("\tsta\tptr1");
|
|
|
|
AddCodeLine ("\tstx\tptr1+1");
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (int)(val & 0xFF));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t(ptr1,x)");
|
|
|
|
AddCodeLine ("\tsta\t(ptr1,x)");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tldy\t#$%02X", offs);
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (int)(val & 0xFF));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tsta\t(ptr1),y");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (!FavourSize) {
|
|
|
|
/* Lots of code, use only if size is not important */
|
|
|
|
AddCodeLine ("\tsta\tptr1");
|
|
|
|
AddCodeLine ("\tstx\tptr1+1");
|
|
|
|
AddCodeLine ("\tldy\t#$%02X", offs);
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (int)(val & 0xFF));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tsta\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tpha");
|
|
|
|
AddCodeLine ("\tiny");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tadc\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tsta\t(ptr1),y");
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tpla");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALL THROUGH */
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tpushax"); /* Push the address */
|
|
|
|
push (flags); /* Correct the internal sp */
|
|
|
|
g_getind (flags, offs); /* Fetch the value */
|
2000-06-14 21:01:37 +00:00
|
|
|
g_inc (flags, val); /* Increment value in primary */
|
2000-05-28 13:40:48 +00:00
|
|
|
g_putind (flags, offs); /* Store the value back */
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_subeqstatic (unsigned flags, unsigned long label, unsigned offs,
|
|
|
|
unsigned long val)
|
|
|
|
/* Emit -= for a static variable */
|
|
|
|
{
|
|
|
|
/* Create the correct label name */
|
|
|
|
char* lbuf = GetLabelName (flags, label, offs);
|
|
|
|
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
if (val == 1) {
|
|
|
|
AddCodeLine ("\tdec\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tsec");
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (int)(val & 0xFF));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tsec");
|
|
|
|
AddCodeLine ("\tsta\ttmp1");
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tsbc\ttmp1");
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
}
|
|
|
|
if ((flags & CF_UNSIGNED) == 0) {
|
|
|
|
AddCodeLine ("\tbpl\t*+3");
|
|
|
|
AddCodeLine ("\tdex");
|
|
|
|
AddCodeHint ("x:!"); /* Invalidate X */
|
2000-06-14 16:58:52 +00:00
|
|
|
}
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tsec");
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
if (val < 0x100) {
|
|
|
|
label = GetLabel ();
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tbcs\tL%04X", (unsigned)label);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tdec\t%s+1", lbuf);
|
|
|
|
g_defloclabel (label);
|
|
|
|
AddCodeLine ("\tldx\t%s+1", lbuf);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tlda\t%s+1", lbuf);
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tsta\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tsta\ttmp1");
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tsbc\ttmp1");
|
|
|
|
AddCodeLine ("\tsta\t%s", lbuf);
|
|
|
|
AddCodeLine ("\tstx\ttmp1");
|
|
|
|
AddCodeLine ("\tlda\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\tsbc\ttmp1");
|
|
|
|
AddCodeLine ("\tsta\t%s+1", lbuf);
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tlda\t%s", lbuf);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
if (val < 0x100) {
|
|
|
|
AddCodeLine ("\tldy\t#<(%s)", lbuf);
|
|
|
|
AddCodeLine ("\tsty\tptr1");
|
|
|
|
AddCodeLine ("\tldy\t#>(%s+1)", lbuf);
|
|
|
|
if (val == 1) {
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tjsr\tlsubeq1");
|
2000-05-28 13:40:48 +00:00
|
|
|
} else {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tlda\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tlsubeqa");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
g_getstatic (flags, label, offs);
|
|
|
|
g_dec (flags, val);
|
|
|
|
g_putstatic (flags, label, offs);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tldy\t#<(%s)", lbuf);
|
|
|
|
AddCodeLine ("\tsty\tptr1");
|
|
|
|
AddCodeLine ("\tldy\t#>(%s+1)", lbuf);
|
|
|
|
AddCodeLine ("\tjsr\tlsubeq");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_subeqlocal (unsigned flags, int offs, unsigned long val)
|
|
|
|
/* Emit -= for a local variable */
|
|
|
|
{
|
|
|
|
/* Calculate the true offset, check it, load it into Y */
|
|
|
|
offs -= oursp;
|
|
|
|
CheckLocalOffs (offs);
|
|
|
|
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
AddCodeLine ("\tsec");
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tsta\ttmp1");
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tlda\t(sp),y");
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tsbc\ttmp1");
|
|
|
|
}
|
|
|
|
AddCodeLine ("\tsta\t(sp),y");
|
|
|
|
if ((flags & CF_UNSIGNED) == 0) {
|
|
|
|
AddCodeLine ("\tbpl\t*+3");
|
|
|
|
AddCodeLine ("\tdex");
|
|
|
|
AddCodeHint ("x:!"); /* Invalidate X */
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
g_getimmed (flags, val, 0);
|
|
|
|
}
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tjsr\tsubeq0sp");
|
|
|
|
} else {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\tsubeqysp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
g_getimmed (flags, val, 0);
|
|
|
|
}
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tjsr\tlsubeq0sp");
|
|
|
|
} else {
|
|
|
|
ldyconst (offs);
|
|
|
|
AddCodeLine ("\tjsr\tlsubeqysp");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_subeqind (unsigned flags, unsigned offs, unsigned long val)
|
|
|
|
/* Emit -= for the location with address in ax */
|
|
|
|
{
|
|
|
|
/* If the offset is too large for a byte register, add the high byte
|
|
|
|
* of the offset to the primary. Beware: We need a special correction
|
|
|
|
* if the offset in the low byte will overflow in the operation.
|
|
|
|
*/
|
|
|
|
offs = MakeByteOffs (flags, offs);
|
|
|
|
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
AddCodeLine ("\tsta\tptr1");
|
|
|
|
AddCodeLine ("\tstx\tptr1+1");
|
|
|
|
if (offs == 0) {
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
AddCodeLine ("\tlda\t(ptr1,x)");
|
|
|
|
AddCodeLine ("\tsec");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tsta\t(ptr1,x)");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tldy\t#$%02X", offs);
|
|
|
|
AddCodeLine ("\tldx\t#$00");
|
|
|
|
AddCodeLine ("\tlda\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tsec");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tsta\t(ptr1),y");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (!FavourSize) {
|
|
|
|
/* Lots of code, use only if size is not important */
|
|
|
|
AddCodeLine ("\tsta\tptr1");
|
|
|
|
AddCodeLine ("\tstx\tptr1+1");
|
|
|
|
AddCodeLine ("\tldy\t#$%02X", offs);
|
|
|
|
AddCodeLine ("\tlda\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tsec");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tsta\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tpha");
|
|
|
|
AddCodeLine ("\tiny");
|
|
|
|
AddCodeLine ("\tlda\t(ptr1),y");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tsta\t(ptr1),y");
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\ttax");
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tpla");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALL THROUGH */
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tpushax"); /* Push the address */
|
|
|
|
push (flags); /* Correct the internal sp */
|
|
|
|
g_getind (flags, offs); /* Fetch the value */
|
|
|
|
g_dec (flags, val); /* Increment value in primary */
|
|
|
|
g_putind (flags, offs); /* Store the value back */
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Add a variable address to the value in ax */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_addaddr_local (unsigned flags, int offs)
|
|
|
|
/* Add the address of a local variable to ax */
|
|
|
|
{
|
|
|
|
/* Add the offset */
|
|
|
|
offs -= oursp;
|
|
|
|
if (offs != 0) {
|
|
|
|
/* We cannot address more then 256 bytes of locals anyway */
|
|
|
|
CheckLocalOffs (offs);
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t#$%02X", offs & 0xFF);
|
|
|
|
AddCodeLine ("\tbcc\t*+4"); /* Do also skip the CLC insn below */
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
AddCodeHint ("x:!"); /* Invalidate X */
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Add the current stackpointer value */
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\tsp");
|
|
|
|
AddCodeLine ("\ttay");
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
AddCodeLine ("\tadc\tsp+1");
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\ttya");
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_addaddr_static (unsigned flags, unsigned long label, unsigned offs)
|
|
|
|
/* Add the address of a static variable to ax */
|
|
|
|
{
|
|
|
|
/* Create the correct label name */
|
|
|
|
char* lbuf = GetLabelName (flags, label, offs);
|
|
|
|
|
|
|
|
/* Add the address to the current ax value */
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t#<(%s)", lbuf);
|
|
|
|
AddCodeLine ("\ttay");
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
AddCodeLine ("\tadc\t#>(%s)", lbuf);
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\ttya");
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* */
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_save (unsigned flags)
|
|
|
|
/* Copy primary register to hold register. */
|
|
|
|
{
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
AddCodeLine ("\tpha");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tsta\tregsave");
|
|
|
|
AddCodeLine ("\tstx\tregsave+1");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tsaveeax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_restore (unsigned flags)
|
|
|
|
/* Copy hold register to P. */
|
|
|
|
{
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
AddCodeLine ("\tpla");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tlda\tregsave");
|
|
|
|
AddCodeLine ("\tldx\tregsave+1");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tresteax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_cmp (unsigned flags, unsigned long val)
|
|
|
|
/* Immidiate compare. The primary register will not be changed, Z flag
|
|
|
|
* will be set.
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
/* Check the size and determine operation */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tbne\t*+4");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcpx\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
Internal ("g_cmp: Long compares not implemented");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void oper (unsigned flags, unsigned long val, char** subs)
|
|
|
|
/* Encode a binary operation. subs is a pointer to four groups of three
|
|
|
|
* strings:
|
|
|
|
* 0-2 --> Operate on ints
|
|
|
|
* 3-5 --> Operate on unsigneds
|
|
|
|
* 6-8 --> Operate on longs
|
|
|
|
* 9-11 --> Operate on unsigned longs
|
|
|
|
*
|
|
|
|
* The first subroutine names in each string group is used to encode an
|
|
|
|
* operation with a zero constant, the second to encode an operation with
|
|
|
|
* a 8 bit constant, and the third is used in all other cases.
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
unsigned offs;
|
|
|
|
|
|
|
|
/* Determine the offset into the array */
|
|
|
|
offs = (flags & CF_UNSIGNED)? 3 : 0;
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
offs += 6;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Encode the operation */
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
/* Constant value given */
|
|
|
|
if (val == 0 && subs [offs+0]) {
|
|
|
|
/* Special case: constant with value zero */
|
|
|
|
AddCodeLine ("\tjsr\t%s", subs [offs+0]);
|
|
|
|
} else if (val < 0x100 && subs [offs+1]) {
|
|
|
|
/* Special case: constant with high byte zero */
|
|
|
|
ldaconst (val); /* Load low byte */
|
|
|
|
AddCodeLine ("\tjsr\t%s", subs [offs+1]);
|
|
|
|
} else {
|
|
|
|
/* Others: arbitrary constant value */
|
|
|
|
g_getimmed (flags, val, 0); /* Load value */
|
|
|
|
AddCodeLine ("\tjsr\t%s", subs [offs+2]);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* Value not constant (is already in (e)ax) */
|
|
|
|
AddCodeLine ("\tjsr\t%s", subs [offs+2]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The operation will pop it's argument */
|
|
|
|
pop (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_test (unsigned flags)
|
|
|
|
/* Force a test to set cond codes right */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tstx\ttmp1");
|
|
|
|
AddCodeLine ("\tora\ttmp1");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tutsteax");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\ttsteax");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_push (unsigned flags, unsigned long val)
|
|
|
|
/* Push the primary register or a constant value onto the stack */
|
|
|
|
{
|
|
|
|
unsigned char hi;
|
|
|
|
|
|
|
|
if (flags & CF_CONST && (flags & CF_TYPE) != CF_LONG) {
|
|
|
|
|
|
|
|
/* We have a constant 8 or 16 bit value */
|
|
|
|
if ((flags & CF_TYPE) == CF_CHAR && (flags & CF_FORCECHAR)) {
|
|
|
|
|
|
|
|
/* Handle as 8 bit value */
|
|
|
|
if (FavourSize && val <= 2) {
|
|
|
|
AddCodeLine ("\tjsr\tpushc%d", (int) val);
|
|
|
|
} else {
|
|
|
|
ldaconst (val);
|
|
|
|
AddCodeLine ("\tjsr\tpusha");
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* Handle as 16 bit value */
|
2000-06-08 21:11:48 +00:00
|
|
|
hi = (unsigned char) (val >> 8);
|
2000-05-28 13:40:48 +00:00
|
|
|
if (val <= 7) {
|
2000-06-08 21:11:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tpush%u", (unsigned) val);
|
2000-05-28 13:40:48 +00:00
|
|
|
} else if (hi == 0 || hi == 0xFF) {
|
|
|
|
/* Use special function */
|
|
|
|
ldaconst (val);
|
|
|
|
AddCodeLine ("\tjsr\t%s", (hi == 0)? "pusha0" : "pushaFF");
|
|
|
|
} else {
|
|
|
|
/* Long way ... */
|
|
|
|
g_getimmed (flags, val, 0);
|
|
|
|
AddCodeLine ("\tjsr\tpushax");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* Value is not 16 bit or not constant */
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
/* Constant 32 bit value, load into eax */
|
|
|
|
g_getimmed (flags, val, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Push the primary register */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
/* Handle as char */
|
|
|
|
AddCodeLine ("\tjsr\tpusha");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALL THROUGH */
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tjsr\tpushax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tjsr\tpusheax");
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Adjust the stack offset */
|
|
|
|
push (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_swap (unsigned flags)
|
|
|
|
/* Swap the primary register and the top of the stack. flags give the type
|
|
|
|
* of *both* values (must have same size).
|
|
|
|
*/
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tjsr\tswapstk");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tswapestk");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_call (unsigned flags, char* lbl, unsigned argsize)
|
|
|
|
/* Call the specified subroutine name */
|
|
|
|
{
|
|
|
|
if ((flags & CF_FIXARGC) == 0) {
|
|
|
|
/* Pass arg count */
|
|
|
|
ldyconst (argsize);
|
|
|
|
}
|
|
|
|
AddCodeLine ("\tjsr\t_%s", lbl);
|
|
|
|
oursp += argsize; /* callee pops args */
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_callind (unsigned flags, unsigned argsize)
|
|
|
|
/* Call subroutine with address in AX */
|
|
|
|
{
|
|
|
|
if ((flags & CF_FIXARGC) == 0) {
|
|
|
|
/* Pass arg count */
|
|
|
|
ldyconst (argsize);
|
|
|
|
}
|
|
|
|
AddCodeLine ("\tjsr\tcallax"); /* do the call */
|
|
|
|
oursp += argsize; /* callee pops args */
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_jump (unsigned label)
|
|
|
|
/* Jump to specified internal label number */
|
|
|
|
{
|
|
|
|
AddCodeLine ("\tjmp\tL%04X", label);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_switch (unsigned flags)
|
|
|
|
/* Output switch statement preample */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tjsr\tswitch");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tlswitch");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_case (unsigned flags, unsigned label, unsigned long val)
|
|
|
|
/* Create table code for one case selector */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\t.word\t$%04X, L%04X",
|
|
|
|
(unsigned)(val & 0xFFFF),
|
|
|
|
(unsigned)(label & 0xFFFF));
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\t.dword\t$%08lX", val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\t.word\tL%04X", label & 0xFFFF);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_truejump (unsigned flags, unsigned label)
|
|
|
|
/* Jump to label if zero flag clear */
|
|
|
|
{
|
|
|
|
if (flags & CF_SHORT) {
|
|
|
|
AddCodeLine ("\tbne\tL%04X", label);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjne\tL%04X", label);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_falsejump (unsigned flags, unsigned label)
|
|
|
|
/* Jump to label if zero flag set */
|
|
|
|
{
|
|
|
|
if (flags & CF_SHORT) {
|
|
|
|
AddCodeLine ("\tbeq\tL%04X", label);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjeq\tL%04X", label);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void mod_internal (int k, char* verb1, char* verb2)
|
|
|
|
{
|
|
|
|
if (k <= 8) {
|
|
|
|
AddCodeLine ("\tjsr\t%ssp%c", verb1, k + '0');
|
|
|
|
} else {
|
|
|
|
CheckLocalOffs (k);
|
|
|
|
ldyconst (k);
|
|
|
|
AddCodeLine ("\tjsr\t%ssp", verb2);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_space (int space)
|
|
|
|
/* Create or drop space on the stack */
|
|
|
|
{
|
|
|
|
if (space < 0) {
|
|
|
|
mod_internal (-space, "inc", "addy");
|
|
|
|
} else if (space > 0) {
|
|
|
|
mod_internal (space, "dec", "suby");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_add (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS + Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosadda0", "tosaddax",
|
|
|
|
0, "tosadda0", "tosaddax",
|
|
|
|
0, 0, "tosaddeax",
|
|
|
|
0, 0, "tosaddeax",
|
|
|
|
};
|
|
|
|
|
|
|
|
if (flags & CF_CONST) {
|
2000-07-18 22:39:35 +00:00
|
|
|
flags &= ~CF_FORCECHAR; /* Handle chars as ints */
|
2000-05-28 13:40:48 +00:00
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
}
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_sub (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS - Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tossuba0", "tossubax",
|
|
|
|
0, "tossuba0", "tossubax",
|
|
|
|
0, 0, "tossubeax",
|
|
|
|
0, 0, "tossubeax",
|
|
|
|
};
|
|
|
|
|
|
|
|
if (flags & CF_CONST) {
|
2000-07-18 22:39:35 +00:00
|
|
|
flags &= ~CF_FORCECHAR; /* Handle chars as ints */
|
2000-05-28 13:40:48 +00:00
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
}
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_rsub (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = Primary - TOS */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosrsuba0", "tosrsubax",
|
|
|
|
0, "tosrsuba0", "tosrsubax",
|
|
|
|
0, 0, "tosrsubeax",
|
|
|
|
0, 0, "tosrsubeax",
|
|
|
|
};
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_mul (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS * Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosmula0", "tosmulax",
|
2000-06-14 16:58:52 +00:00
|
|
|
0, "tosumula0", "tosumulax",
|
2000-05-28 13:40:48 +00:00
|
|
|
0, 0, "tosmuleax",
|
|
|
|
0, 0, "tosumuleax",
|
|
|
|
};
|
|
|
|
|
|
|
|
int p2;
|
|
|
|
|
|
|
|
/* Do strength reduction if the value is constant and a power of two */
|
|
|
|
if (flags & CF_CONST && (p2 = powerof2 (val)) >= 0) {
|
|
|
|
/* Generate a shift instead */
|
|
|
|
g_asl (flags, p2);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
2000-07-27 21:08:52 +00:00
|
|
|
* in the primary register.
|
2000-05-28 13:40:48 +00:00
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
/* Handle some special cases */
|
|
|
|
switch (val) {
|
|
|
|
|
|
|
|
case 3:
|
|
|
|
AddCodeLine ("\tsta\ttmp1");
|
|
|
|
AddCodeLine ("\tasl\ta");
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\ttmp1");
|
|
|
|
return;
|
|
|
|
|
|
|
|
case 5:
|
|
|
|
AddCodeLine ("\tsta\ttmp1");
|
|
|
|
AddCodeLine ("\tasl\ta");
|
|
|
|
AddCodeLine ("\tasl\ta");
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\ttmp1");
|
|
|
|
return;
|
|
|
|
|
|
|
|
case 10:
|
|
|
|
AddCodeLine ("\tsta\ttmp1");
|
|
|
|
AddCodeLine ("\tasl\ta");
|
|
|
|
AddCodeLine ("\tasl\ta");
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tclc");
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tadc\ttmp1");
|
|
|
|
AddCodeLine ("\tasl\ta");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
2000-07-18 22:39:35 +00:00
|
|
|
flags &= ~CF_FORCECHAR; /* Handle chars as ints */
|
2000-05-28 13:40:48 +00:00
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_div (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS / Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosdiva0", "tosdivax",
|
|
|
|
0, "tosudiva0", "tosudivax",
|
|
|
|
0, 0, "tosdiveax",
|
|
|
|
0, 0, "tosudiveax",
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Do strength reduction if the value is constant and a power of two */
|
|
|
|
int p2;
|
|
|
|
if ((flags & CF_CONST) && (p2 = powerof2 (val)) >= 0) {
|
|
|
|
/* Generate a shift instead */
|
|
|
|
g_asr (flags, p2);
|
|
|
|
} else {
|
|
|
|
/* Generate a division */
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
/* lhs is not on stack */
|
2000-07-18 22:39:35 +00:00
|
|
|
flags &= ~CF_FORCECHAR; /* Handle chars as ints */
|
2000-05-28 13:40:48 +00:00
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
}
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_mod (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS % Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosmoda0", "tosmodax",
|
|
|
|
0, "tosumoda0", "tosumodax",
|
|
|
|
0, 0, "tosmodeax",
|
|
|
|
0, 0, "tosumodeax",
|
|
|
|
};
|
|
|
|
int p2;
|
|
|
|
|
|
|
|
/* Check if we can do some cost reduction */
|
|
|
|
if ((flags & CF_CONST) && (flags & CF_UNSIGNED) && val != 0xFFFFFFFF && (p2 = powerof2 (val)) >= 0) {
|
|
|
|
/* We can do that with an AND operation */
|
|
|
|
g_and (flags, val - 1);
|
|
|
|
} else {
|
|
|
|
/* Do it the hard way... */
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
/* lhs is not on stack */
|
2000-07-18 22:39:35 +00:00
|
|
|
flags &= ~CF_FORCECHAR; /* Handle chars as ints */
|
2000-05-28 13:40:48 +00:00
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
}
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_or (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS | Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosora0", "tosorax",
|
|
|
|
0, "tosora0", "tosorax",
|
|
|
|
0, 0, "tosoreax",
|
|
|
|
0, 0, "tosoreax",
|
|
|
|
};
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
if ((val & 0xFF) != 0xFF) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tora\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (val <= 0xFF) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tora\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (val <= 0xFF) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tora\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_xor (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS ^ Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosxora0", "tosxorax",
|
|
|
|
0, "tosxora0", "tosxorax",
|
|
|
|
0, 0, "tosxoreax",
|
|
|
|
0, 0, "tosxoreax",
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
|
|
|
if ((val & 0xFF) != 0) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\teor\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (val <= 0xFF) {
|
|
|
|
if (val != 0) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\teor\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
return;
|
|
|
|
} else if ((val & 0xFF) == 0) {
|
|
|
|
AddCodeLine ("\tpha");
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\ttxa");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\teor\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tpla");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (val <= 0xFF) {
|
|
|
|
if (val != 0) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\teor\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_and (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS & Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosanda0", "tosandax",
|
|
|
|
0, "tosanda0", "tosandax",
|
|
|
|
0, 0, "tosandeax",
|
|
|
|
0, 0, "tosandeax",
|
|
|
|
};
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tand\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
case CF_INT:
|
|
|
|
if ((val & 0xFFFF) != 0xFFFF) {
|
|
|
|
if (val <= 0xFF) {
|
|
|
|
ldxconst (0);
|
|
|
|
if (val == 0) {
|
|
|
|
ldaconst (0);
|
|
|
|
} else if (val != 0xFF) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tand\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
} else if ((val & 0xFF00) == 0xFF00) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tand\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
} else if ((val & 0x00FF) == 0x0000) {
|
|
|
|
AddCodeLine ("\ttxa");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tand\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
ldaconst (0);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\ttay");
|
|
|
|
AddCodeLine ("\ttxa");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tand\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\ttya");
|
|
|
|
if ((val & 0x00FF) != 0x00FF) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tand\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (val <= 0xFF) {
|
|
|
|
ldxconst (0);
|
|
|
|
AddCodeLine ("\tstx\tsreg+1");
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tstx\tsreg");
|
2000-05-28 13:40:48 +00:00
|
|
|
if ((val & 0xFF) != 0xFF) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tand\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
return;
|
|
|
|
} else if (val == 0xFF00) {
|
|
|
|
ldaconst (0);
|
|
|
|
AddCodeLine ("\tsta\tsreg+1");
|
|
|
|
AddCodeLine ("\tsta\tsreg");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_asr (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS >> Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosasra0", "tosasrax",
|
|
|
|
0, "tosshra0", "tosshrax",
|
|
|
|
0, 0, "tosasreax",
|
|
|
|
0, 0, "tosshreax",
|
|
|
|
};
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
if (val >= 1 && val <= 3) {
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tshrax%ld", val);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tasrax%ld", val);
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
} else if (val == 8 && (flags & CF_UNSIGNED)) {
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
ldxconst (0);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (val >= 1 && val <= 3) {
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tshreax%ld", val);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tasreax%ld", val);
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
} else if (val == 8 && (flags & CF_UNSIGNED)) {
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
AddCodeLine ("\tldx\tsreg");
|
|
|
|
AddCodeLine ("\tldy\tsreg+1");
|
|
|
|
AddCodeLine ("\tsty\tsreg");
|
|
|
|
AddCodeLine ("\tldy\t#$00");
|
|
|
|
AddCodeLine ("\tsty\tsreg+1");
|
|
|
|
return;
|
|
|
|
} else if (val == 16) {
|
|
|
|
AddCodeLine ("\tldy\t#$00");
|
|
|
|
AddCodeLine ("\tldx\tsreg+1");
|
|
|
|
if ((flags & CF_UNSIGNED) == 0) {
|
|
|
|
AddCodeLine ("\tbpl\t*+3");
|
|
|
|
AddCodeLine ("\tdey");
|
|
|
|
AddCodeHint ("y:!");
|
|
|
|
}
|
|
|
|
AddCodeLine ("\tlda\tsreg");
|
|
|
|
AddCodeLine ("\tsty\tsreg+1");
|
|
|
|
AddCodeLine ("\tsty\tsreg");
|
2000-06-14 16:58:52 +00:00
|
|
|
return;
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_asl (unsigned flags, unsigned long val)
|
|
|
|
/* Primary = TOS << Primary */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
0, "tosasla0", "tosaslax",
|
|
|
|
0, "tosshla0", "tosshlax",
|
|
|
|
0, 0, "tosasleax",
|
|
|
|
0, 0, "tosshleax",
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
if (val >= 1 && val <= 3) {
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tshlax%ld", val);
|
|
|
|
} else {
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tjsr\taslax%ld", val);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
return;
|
|
|
|
} else if (val == 8) {
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tlda\t#$00");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (val >= 1 && val <= 3) {
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tshleax%ld", val);
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tasleax%ld", val);
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
} else if (val == 8) {
|
|
|
|
AddCodeLine ("\tldy\tsreg");
|
|
|
|
AddCodeLine ("\tsty\tsreg+1");
|
|
|
|
AddCodeLine ("\tstx\tsreg");
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tlda\t#$00");
|
|
|
|
return;
|
|
|
|
} else if (val == 16) {
|
|
|
|
AddCodeLine ("\tstx\tsreg+1");
|
|
|
|
AddCodeLine ("\tsta\tsreg");
|
|
|
|
AddCodeLine ("\tlda\t#$00");
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_neg (unsigned flags)
|
|
|
|
/* Primary = -Primary */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tjsr\tnegax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tnegeax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_bneg (unsigned flags)
|
|
|
|
/* Primary = !Primary */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
AddCodeLine ("\tjsr\tbnega");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tjsr\tbnegax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tbnegeax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_com (unsigned flags)
|
|
|
|
/* Primary = ~Primary */
|
|
|
|
{
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\tjsr\tcomplax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\tjsr\tcompleax");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_inc (unsigned flags, unsigned long val)
|
|
|
|
/* Increment the primary register by a given number */
|
|
|
|
{
|
|
|
|
/* Don't inc by zero */
|
|
|
|
if (val == 0) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Generate code for the supported types */
|
|
|
|
flags &= ~CF_CONST;
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-06-14 08:18:19 +00:00
|
|
|
if (CPU == CPU_65C02 && val <= 2) {
|
|
|
|
while (val--) {
|
|
|
|
AddCodeLine ("\tina");
|
|
|
|
}
|
2000-06-14 16:58:52 +00:00
|
|
|
} else {
|
2000-06-14 08:18:19 +00:00
|
|
|
AddCodeLine ("\tclc");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tadc\t#$%02X", (unsigned char)val);
|
2000-06-14 08:18:19 +00:00
|
|
|
}
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
2000-06-14 08:18:19 +00:00
|
|
|
if (CPU == CPU_65C02 && val == 1) {
|
|
|
|
AddCodeLine ("\tina");
|
|
|
|
AddCodeLine ("\tbne\t*+3");
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
/* Tell the optimizer that the X register may be invalid */
|
|
|
|
AddCodeHint ("x:!");
|
|
|
|
} else if (FavourSize) {
|
2000-05-28 13:40:48 +00:00
|
|
|
/* Use jsr calls */
|
|
|
|
if (val <= 8) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tjsr\tincax%lu", val);
|
2000-05-28 13:40:48 +00:00
|
|
|
} else if (val <= 255) {
|
|
|
|
ldyconst (val);
|
|
|
|
AddCodeLine ("\tjsr\tincaxy");
|
|
|
|
} else {
|
|
|
|
g_add (flags | CF_CONST, val);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* Inline the code */
|
|
|
|
if (val < 0x300) {
|
|
|
|
if ((val & 0xFF) != 0) {
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
AddCodeLine ("\tadc\t#$%02X", (unsigned char) val);
|
|
|
|
AddCodeLine ("\tbcc\t*+3");
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
/* Tell the optimizer that the X register may be invalid */
|
|
|
|
AddCodeHint ("x:!");
|
|
|
|
}
|
|
|
|
if (val >= 0x100) {
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
}
|
|
|
|
if (val >= 0x200) {
|
|
|
|
AddCodeLine ("\tinx");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tclc");
|
|
|
|
if ((val & 0xFF) != 0) {
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tadc\t#$%02X", (unsigned char) val);
|
2000-05-28 13:40:48 +00:00
|
|
|
/* Tell the optimizer that the X register may be invalid */
|
|
|
|
AddCodeHint ("x:!");
|
|
|
|
}
|
|
|
|
AddCodeLine ("\tpha");
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
AddCodeLine ("\tadc\t#$%02X", (unsigned char) (val >> 8));
|
|
|
|
AddCodeLine ("\ttax");
|
|
|
|
AddCodeLine ("\tpla");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (val <= 255) {
|
|
|
|
ldyconst (val);
|
|
|
|
AddCodeLine ("\tjsr\tinceaxy");
|
|
|
|
} else {
|
|
|
|
g_add (flags | CF_CONST, val);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_dec (unsigned flags, unsigned long val)
|
|
|
|
/* Decrement the primary register by a given number */
|
|
|
|
{
|
|
|
|
/* Generate code for the supported types */
|
|
|
|
flags &= ~CF_CONST;
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-06-14 08:18:19 +00:00
|
|
|
if (CPU == CPU_65C02 && val <= 2) {
|
|
|
|
while (val--) {
|
|
|
|
AddCodeLine ("\tdea");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tsec");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tsbc\t#$%02X", (unsigned char)val);
|
2000-06-14 08:18:19 +00:00
|
|
|
}
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (val <= 2) {
|
|
|
|
AddCodeLine ("\tjsr\tdecax%d", (int) val);
|
|
|
|
} else if (val <= 255) {
|
|
|
|
ldyconst (val);
|
|
|
|
AddCodeLine ("\tjsr\tdecaxy");
|
|
|
|
} else {
|
|
|
|
g_sub (flags | CF_CONST, val);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
if (val <= 255) {
|
|
|
|
ldyconst (val);
|
|
|
|
AddCodeLine ("\tjsr\tdeceaxy");
|
|
|
|
} else {
|
|
|
|
g_sub (flags | CF_CONST, val);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Following are the conditional operators. They compare the TOS against
|
|
|
|
* the primary and put a literal 1 in the primary if the condition is
|
|
|
|
* true, otherwise they clear the primary register
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_eq (unsigned flags, unsigned long val)
|
|
|
|
/* Test for equal */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
"toseq00", "toseqa0", "toseqax",
|
|
|
|
"toseq00", "toseqa0", "toseqax",
|
|
|
|
0, 0, "toseqeax",
|
|
|
|
0, 0, "toseqeax",
|
|
|
|
};
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tbooleq");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcpx\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tbne\t*+4");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tbooleq");
|
|
|
|
return;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_ne (unsigned flags, unsigned long val)
|
|
|
|
/* Test for not equal */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
"tosne00", "tosnea0", "tosneax",
|
|
|
|
"tosne00", "tosnea0", "tosneax",
|
|
|
|
0, 0, "tosneeax",
|
|
|
|
0, 0, "tosneeax",
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tboolne");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcpx\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tbne\t*+4");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tboolne");
|
|
|
|
return;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_lt (unsigned flags, unsigned long val)
|
|
|
|
/* Test for less than */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
"toslt00", "toslta0", "tosltax",
|
|
|
|
"tosult00", "tosulta0", "tosultax",
|
|
|
|
0, 0, "toslteax",
|
|
|
|
0, 0, "tosulteax",
|
|
|
|
};
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
/* Give a warning in some special cases */
|
|
|
|
if ((flags & CF_UNSIGNED) && val == 0) {
|
|
|
|
Warning (WARN_COND_NEVER_TRUE);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Look at the type */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tboolult");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tboollt");
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
2000-06-14 16:58:52 +00:00
|
|
|
/* FALLTHROUGH */
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if ((flags & CF_UNSIGNED) == 0 && val == 0) {
|
|
|
|
/* If we have a signed compare against zero, we only need to
|
|
|
|
* test the high byte.
|
|
|
|
*/
|
|
|
|
AddCodeLine ("\ttxa");
|
|
|
|
AddCodeLine ("\tjsr\tboollt");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* Direct code only for unsigned data types */
|
|
|
|
if (flags & CF_UNSIGNED) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcpx\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tbne\t*+4");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tboolult");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_le (unsigned flags, unsigned long val)
|
|
|
|
/* Test for less than or equal to */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
"tosle00", "toslea0", "tosleax",
|
|
|
|
"tosule00", "tosulea0", "tosuleax",
|
|
|
|
0, 0, "tosleeax",
|
|
|
|
0, 0, "tosuleeax",
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
/* Look at the type */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tboolule");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tboolle");
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcpx\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tbne\t*+4");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tboolule");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_gt (unsigned flags, unsigned long val)
|
|
|
|
/* Test for greater than */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
"tosgt00", "tosgta0", "tosgtax",
|
|
|
|
"tosugt00", "tosugta0", "tosugtax",
|
|
|
|
0, 0, "tosgteax",
|
|
|
|
0, 0, "tosugteax",
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
/* Look at the type */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
/* If we have a compare > 0, we will replace it by
|
|
|
|
* != 0 here, since both are identical but the latter
|
|
|
|
* is easier to optimize.
|
|
|
|
*/
|
|
|
|
if (val & 0xFF) {
|
|
|
|
AddCodeLine ("\tjsr\tboolugt");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tboolne");
|
|
|
|
}
|
|
|
|
} else {
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\tjsr\tboolgt");
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
/* If we have a compare > 0, we will replace it by
|
|
|
|
* != 0 here, since both are identical but the latter
|
|
|
|
* is easier to optimize.
|
|
|
|
*/
|
|
|
|
if ((val & 0xFFFF) == 0) {
|
|
|
|
AddCodeLine ("\tstx\ttmp1");
|
|
|
|
AddCodeLine ("\tora\ttmp1");
|
|
|
|
AddCodeLine ("\tjsr\tboolne");
|
|
|
|
} else {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcpx\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tbne\t*+4");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tboolugt");
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_ge (unsigned flags, unsigned long val)
|
|
|
|
/* Test for greater than or equal to */
|
|
|
|
{
|
|
|
|
static char* ops [12] = {
|
|
|
|
"tosge00", "tosgea0", "tosgeax",
|
|
|
|
"tosuge00", "tosugea0", "tosugeax",
|
|
|
|
0, 0, "tosgeeax",
|
|
|
|
0, 0, "tosugeeax",
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* If the right hand side is const, the lhs is not on stack but still
|
|
|
|
* in the primary register.
|
|
|
|
*/
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
/* Give a warning in some special cases */
|
|
|
|
if ((flags & CF_UNSIGNED) && val == 0) {
|
|
|
|
Warning (WARN_COND_ALWAYS_TRUE);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Look at the type */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
|
|
|
if (flags & CF_FORCECHAR) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
if (flags & CF_UNSIGNED) {
|
|
|
|
AddCodeLine ("\tjsr\tbooluge");
|
|
|
|
} else {
|
|
|
|
AddCodeLine ("\tjsr\tboolge");
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
if (flags & CF_UNSIGNED) {
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcpx\t#$%02X", (unsigned char)(val >> 8));
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tbne\t*+4");
|
2000-07-27 21:08:52 +00:00
|
|
|
AddCodeLine ("\tcmp\t#$%02X", (unsigned char)val);
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\tjsr\tbooluge");
|
|
|
|
return;
|
|
|
|
}
|
2000-06-14 16:58:52 +00:00
|
|
|
break;
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we go here, we didn't emit code. Push the lhs on stack and fall
|
|
|
|
* into the normal, non-optimized stuff.
|
|
|
|
*/
|
|
|
|
g_push (flags & ~CF_CONST, 0);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use long way over the stack */
|
|
|
|
oper (flags, val, ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
2000-07-27 21:08:52 +00:00
|
|
|
/* Allocating static storage */
|
2000-05-28 13:40:48 +00:00
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_res (unsigned n)
|
2000-06-10 16:32:12 +00:00
|
|
|
/* Reserve static storage, n bytes */
|
2000-05-28 13:40:48 +00:00
|
|
|
{
|
2000-06-10 16:32:12 +00:00
|
|
|
AddCodeLine ("\t.res\t%u,$00", n);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_defdata (unsigned flags, unsigned long val, unsigned offs)
|
|
|
|
/* Define data with the size given in flags */
|
|
|
|
{
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
/* Numeric constant */
|
|
|
|
switch (flags & CF_TYPE) {
|
|
|
|
|
|
|
|
case CF_CHAR:
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\t.byte\t$%02lX", val & 0xFF);
|
2000-05-28 13:40:48 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_INT:
|
|
|
|
AddCodeLine ("\t.word\t$%04lX", val & 0xFFFF);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CF_LONG:
|
|
|
|
AddCodeLine ("\t.dword\t$%08lX", val & 0xFFFFFFFF);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
typeerror (flags);
|
|
|
|
break;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* Create the correct label name */
|
|
|
|
const char* Label = GetLabelName (flags, val, offs);
|
|
|
|
|
|
|
|
/* Labels are always 16 bit */
|
|
|
|
AddCodeLine ("\t.word\t%s", Label);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_defbytes (const unsigned char* Bytes, unsigned Count)
|
2000-06-10 16:32:12 +00:00
|
|
|
/* Output a row of bytes as a constant */
|
2000-05-28 13:40:48 +00:00
|
|
|
{
|
|
|
|
unsigned Chunk;
|
|
|
|
char Buf [128];
|
|
|
|
char* B;
|
|
|
|
|
|
|
|
/* Output the stuff */
|
|
|
|
while (Count) {
|
|
|
|
|
|
|
|
/* How many go into this line? */
|
|
|
|
if ((Chunk = Count) > 16) {
|
|
|
|
Chunk = 16;
|
|
|
|
}
|
|
|
|
Count -= Chunk;
|
|
|
|
|
|
|
|
/* Output one line */
|
|
|
|
strcpy (Buf, "\t.byte\t");
|
|
|
|
B = Buf + 7;
|
|
|
|
do {
|
|
|
|
B += sprintf (B, "$%02X", *Bytes++ & 0xFF);
|
|
|
|
if (--Chunk) {
|
|
|
|
*B++ = ',';
|
|
|
|
}
|
|
|
|
} while (Chunk);
|
|
|
|
|
|
|
|
/* Output the line */
|
|
|
|
AddCodeLine (Buf);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_zerobytes (unsigned n)
|
|
|
|
/* Output n bytes of data initialized with zero */
|
|
|
|
{
|
2000-06-10 16:32:12 +00:00
|
|
|
AddCodeLine ("\t.res\t%u,$00", n);
|
2000-05-28 13:40:48 +00:00
|
|
|
}
|
|
|
|
|
2000-06-14 21:01:37 +00:00
|
|
|
|
2000-05-28 13:40:48 +00:00
|
|
|
|
|
|
|
/*****************************************************************************/
|
2000-06-14 16:58:52 +00:00
|
|
|
/* Inlined known functions */
|
2000-05-28 13:40:48 +00:00
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void g_strlen (unsigned flags, unsigned long val, unsigned offs)
|
|
|
|
/* Inline the strlen() function */
|
|
|
|
{
|
|
|
|
/* We need a label in both cases */
|
|
|
|
unsigned label = GetLabel ();
|
|
|
|
|
|
|
|
/* Two different encodings */
|
|
|
|
if (flags & CF_CONST) {
|
|
|
|
|
|
|
|
/* The address of the string is constant. Create the correct label name */
|
|
|
|
char* lbuf = GetLabelName (flags, val, offs);
|
|
|
|
|
|
|
|
/* Generate the strlen code */
|
|
|
|
AddCodeLine ("\tldy\t#$FF");
|
|
|
|
g_defloclabel (label);
|
|
|
|
AddCodeLine ("\tiny");
|
|
|
|
AddCodeLine ("\tlda\t%s,y", lbuf);
|
|
|
|
AddCodeLine ("\tbne\tL%04X", label);
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\ttax");
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\ttya");
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* Address not constant but in primary */
|
|
|
|
if (FavourSize) {
|
|
|
|
/* This is too much code, so call strlen instead of inlining */
|
|
|
|
AddCodeLine ("\tjsr\t_strlen");
|
|
|
|
} else {
|
|
|
|
/* Inline the function */
|
|
|
|
AddCodeLine ("\tsta\tptr1");
|
|
|
|
AddCodeLine ("\tstx\tptr1+1");
|
|
|
|
AddCodeLine ("\tldy\t#$FF");
|
|
|
|
g_defloclabel (label);
|
|
|
|
AddCodeLine ("\tiny");
|
|
|
|
AddCodeLine ("\tlda\t(ptr1),y");
|
|
|
|
AddCodeLine ("\tbne\tL%04X", label);
|
2000-06-14 16:58:52 +00:00
|
|
|
AddCodeLine ("\ttax");
|
2000-05-28 13:40:48 +00:00
|
|
|
AddCodeLine ("\ttya");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|