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Added .REPEAT pseudo instruction

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git-svn-id: svn://svn.cc65.org/cc65/trunk@215 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2000-07-28 12:15:40 +00:00
parent 77e8bffa81
commit 44a11218e1
10 changed files with 334 additions and 51 deletions
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41
src/ca65/listing.c
View File

@ -37,11 +37,13 @@
#include <string.h>
#include <errno.h>
#include "../common/fname.h"
#include "../common/segdefs.h"
#include "../common/version.h"
#include "../common/xmalloc.h"
/* common */
#include "fname.h"
#include "segdefs.h"
#include "version.h"
#include "xmalloc.h"
/* ca65 */
#include "error.h"
#include "global.h"
#include "objcode.h"
@ -50,7 +52,7 @@
/*****************************************************************************/
/* Data */
/* Data */
/*****************************************************************************/
@ -167,13 +169,28 @@ void InitListingLine (void)
{
if (Listing) {
/* Make the last loaded line the current line */
LineCur = LineLast;
/* ###### This code is a hack! We really need to do it right
* as soon as we know, how:-(
*/
if (LineCur && LineCur->Next && LineCur->Next != LineLast) {
ListLine* L = LineCur;
do {
L = L->Next;
/* Set the values for this line */
CHECK (L != 0);
L->PC = GetPC ();
L->Reloc = RelocMode;
L->Output = (ListingEnabled > 0);
L->ListBytes = (unsigned char) ListBytes;
} while (L->Next != LineLast);
}
LineCur = LineLast;
/* Set the values for this line */
CHECK (LineCur != 0);
LineCur->PC = GetPC ();
LineCur->Reloc = RelocMode;
LineCur->Output = (ListingEnabled > 0);
/* Set the values for this line */
CHECK (LineCur != 0);
LineCur->PC = GetPC ();
LineCur->Reloc = RelocMode;
LineCur->Output = (ListingEnabled > 0);
LineCur->ListBytes = (unsigned char) ListBytes;
}
}
@ -345,7 +362,7 @@ void CreateListing (void)
break;
case FRAG_EXPR:
case FRAG_SEXPR:
case FRAG_SEXPR:
B = AddMult (B, 'r', Frag->Len*2);
break;

12
src/ca65/main.c
View File

@ -39,9 +39,11 @@
#include <ctype.h>
#include <time.h>
#include "../common/cmdline.h"
#include "../common/version.h"
/* common */
#include "cmdline.h"
#include "version.h"
/* ca65 */
#include "error.h"
#include "expr.h"
#include "global.h"
@ -301,11 +303,11 @@ static void OneLine (void)
int Done = 0;
/* Initialize the new listing line if we are actually reading from file
* and not from internally pushed input.
* and not from internally pushed input.
*/
if (!HavePushedInput ()) {
InitListingLine ();
}
}
if (Tok == TOK_COLON) {
/* An unnamed label */

29
src/ca65/make/gcc.mak
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@ -1,8 +1,8 @@
#
# gcc Makefile for a65, link65 & libr65
# gcc Makefile for ca65
#
CFLAGS = -g -O2 -Wall
CFLAGS = -g -O2 -Wall -I../common
CC = gcc
LDFLAGS =
@ -12,18 +12,19 @@ OBJS = condasm.o \
expr.o \
fragment.o \
global.o \
incpath.o \
instr.o \
istack.o \
listing.o \
macpack.o \
macro.o \
main.o \
nexttok.o \
objcode.o \
objfile.o \
options.o \
pseudo.o \
incpath.o \
instr.o \
istack.o \
listing.o \
macpack.o \
macro.o \
main.o \
nexttok.o \
objcode.o \
objfile.o \
options.o \
pseudo.o \
repeat.o \
scanner.o \
symtab.o \
toklist.o \

2
src/ca65/make/watcom.mak
View File

@ -81,6 +81,7 @@ OBJS = condasm.obj \
objfile.obj \
options.obj \
pseudo.obj \
repeat.obj \
scanner.obj \
symtab.obj \
toklist.obj \
@ -124,6 +125,7 @@ FILE objcode.obj
FILE objfile.obj
FILE options.obj
FILE pseudo.obj
FILE repeat.obj
FILE scanner.obj
FILE symtab.obj
FILE toklist.obj

9
src/ca65/pseudo.c
View File

@ -39,8 +39,10 @@
#include <ctype.h>
#include <errno.h>
#include "../common/bitops.h"
/* common */
#include "bitops.h"
/* ca65 */
#include "condasm.h"
#include "error.h"
#include "expr.h"
@ -52,6 +54,7 @@
#include "nexttok.h"
#include "objcode.h"
#include "options.h"
#include "repeat.h"
#include "symtab.h"
#include "pseudo.h"
@ -906,7 +909,7 @@ static void DoReloc (void)
static void DoRepeat (void)
/* Repeat some instruction block */
{
ErrorSkip (ERR_NOT_IMPLEMENTED);
ParseRepeat ();
}
@ -1043,7 +1046,7 @@ static void DoWarning (void)
if (Tok != TOK_STRCON) {
ErrorSkip (ERR_STRCON_EXPECTED);
} else {
Error (WARN_USER, SVal);
Warning (WARN_USER, SVal);
SkipUntilSep ();
}
}

179
src/ca65/repeat.c Normal file
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@ -0,0 +1,179 @@
/*****************************************************************************/
/* */
/* repeat.c */
/* */
/* Handle the .REPEAT pseudo instruction */
/* */
/* */
/* */
/* (C) 2000 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* 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. */
/* */
/*****************************************************************************/
/* common */
#include "xmalloc.h"
/* ca65 */
#include "error.h"
#include "expr.h"
#include "nexttok.h"
#include "toklist.h"
#include "repeat.h"
/*****************************************************************************/
/* Code */
/*****************************************************************************/
static TokList* CollectRepeatTokens (void)
/* Collect all tokens inside the .REPEAT body in a token list and return
* this list. In case of errors, NULL is returned.
*/
{
/* Create the token list */
TokList* List = NewTokList ();
/* Read the token list */
unsigned Repeats = 0;
while (Repeats != 0 || Tok != TOK_ENDREP) {
/* Check for end of input */
if (Tok == TOK_EOF) {
Error (ERR_UNEXPECTED_EOF);
FreeTokList (List);
return 0;
}
/* If we find a token that is equal to the repeat counter name,
* replace it by a REPCOUNTER token. This way we have to do strcmps
* only once for each identifier, and not for each expansion.
* Note: This will fail for nested repeats using the same repeat
* counter name, but
*/
/* Collect all tokens in the list */
AddCurTok (List);
/* Check for and count nested .REPEATs */
if (Tok == TOK_REPEAT) {
++Repeats;
} else if (Tok == TOK_ENDREP) {
--Repeats;
}
/* Get the next token */
NextTok ();
}
/* Eat the closing .ENDREP */
NextTok ();
/* Return the list of collected tokens */
return List;
}
static void RepeatTokenCheck (TokList* L)
/* Called each time a token from a repeat token list is set. Is used to check
* for and replace identifiers that are the repeat counter.
*/
{
if (Tok == TOK_IDENT && L->Data != 0 && strcmp (SVal, L->Data) == 0) {
/* Must replace by the repeat counter */
Tok = TOK_INTCON;
IVal = L->RepCount;
}
}
void ParseRepeat (void)
/* Parse and handle the .REPEAT statement */
{
char* Name;
TokList* List;
/* Repeat count follows */
long RepCount = ConstExpression ();
if (RepCount < 0) {
Error (ERR_RANGE);
RepCount = 0;
}
/* Optional there is a comma and a counter variable */
Name = 0;
if (Tok == TOK_COMMA) {
/* Skip the comma */
NextTok ();
/* Check for an identifier */
if (Tok != TOK_IDENT) {
ErrorSkip (ERR_IDENT_EXPECTED);
} else {
/* Remember the name and skip it */
Name = xstrdup (SVal);
NextTok ();
}
}
/* Separator */
ConsumeSep ();
/* Read the token list */
List = CollectRepeatTokens ();
/* If we had an error, bail out */
if (List == 0) {
xfree (Name);
return;
}
/* Update the token list for replay */
List->RepMax = (unsigned) RepCount;
List->Data = Name;
List->Check = RepeatTokenCheck;
/* If the list is empty, or repeat count zero, there is nothing
* to repeat.
*/
if (List->Count == 0 || RepCount == 0) {
FreeTokList (List);
return;
}
/* Read input from the repeat descriptor */
PushTokList (List, ".REPEAT");
}

58
src/ca65/repeat.h Normal file
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@ -0,0 +1,58 @@
/*****************************************************************************/
/* */
/* repeat.h */
/* */
/* Handle the .REPEAT pseudo instruction */
/* */
/* */
/* */
/* (C) 2000 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* 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. */
/* */
/*****************************************************************************/
#ifndef REPEAT_H
#define REPEAT_H
/*****************************************************************************/
/* Code */
/*****************************************************************************/
void ParseRepeat (void);
/* Parse and handle the .REPEAT statement */
/* End of repeat.h */
#endif

3
src/ca65/scanner.h
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@ -38,7 +38,8 @@
#include "../common/filepos.h"
/* common */
#include "filepos.h"

29
src/ca65/toklist.c
View File

@ -34,9 +34,11 @@
#include <string.h>
#include "../common/xmalloc.h"
/* common */
#include "xmalloc.h"
/* ca65 */
#include "error.h"
#include "istack.h"
#include "scanner.h"
@ -62,7 +64,7 @@ TokNode* NewTokNode (void)
/* Initialize the token contents */
T->Next = 0;
T->Tok = Tok;
T->WS = WS;
T->WS = WS;
T->IVal = IVal;
memcpy (T->SVal, SVal, Len);
T->SVal [Len] = '\0';
@ -125,8 +127,11 @@ void InitTokList (TokList* T)
T->Next = 0;
T->Root = 0;
T->Last = 0;
T->Repeat = 1;
T->RepCount = 0;
T->RepMax = 1;
T->Count = 0;
T->Check = 0;
T->Data = 0;
}
@ -157,6 +162,11 @@ void FreeTokList (TokList* List)
FreeTokNode (Tmp);
}
/* If we have associated data, free it */
if (List->Data) {
xfree (List->Data);
}
/* Free the list structure itself */
xfree (List);
}
@ -198,6 +208,13 @@ static int ReplayTokList (void* List)
/* Set the next token from the list */
TokSet (L->Last);
/* If a check function is defined, call it, so it may look at the token
* just set and changed it as apropriate.
*/
if (L->Check) {
L->Check (L);
}
/* Set the pointer to the next token */
L->Last = L->Last->Next;
@ -205,7 +222,7 @@ static int ReplayTokList (void* List)
* zero, delete the list and remove the function from the stack.
*/
if (L->Last == 0) {
if (--L->Repeat == 0) {
if (++L->RepCount >= L->RepMax) {
/* Done with this list */
FreeTokList (L);
PopInput ();

23
src/ca65/toklist.h
View File

@ -47,21 +47,24 @@
/* Struct holding a token */
typedef struct TokNode TokNode;
struct TokNode {
TokNode* Next; /* For single linked list */
enum Token Tok; /* Token value */
int WS; /* Whitespace before token? */
long IVal; /* Integer token attribute */
char SVal [1]; /* String attribute, dyn. allocated */
TokNode* Next; /* For single linked list */
enum Token Tok; /* Token value */
int WS; /* Whitespace before token? */
long IVal; /* Integer token attribute */
char SVal [1]; /* String attribute, dyn. allocated */
};
/* Struct holding a token list */
typedef struct TokList TokList;
struct TokList {
TokList* Next; /* Single linked list (for replay) */
TokNode* Root; /* First node in list */
TokNode* Last; /* Last node in list or replay */
unsigned Repeat; /* Repeat counter (used for replay) */
unsigned Count; /* Token count */
TokList* Next; /* Single linked list (for replay) */
TokNode* Root; /* First node in list */
TokNode* Last; /* Last node in list or replay */
unsigned RepCount; /* Repeat counter (used for replay) */
unsigned RepMax; /* Maximum repeat count for replay */
unsigned Count; /* Token count */
void (*Check)(TokList*); /* Token check function */
void* Data; /* Additional data for check */
};