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Add generation of BRA instructions for 65C02

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Curtis F Kaylor 2018-02-04 22:30:23 -05:00
parent 702e7f7c56
commit ae38a81b3f
8 changed files with 110 additions and 22 deletions
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33
apple1/oldclude/apple1.h Normal file
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@ -0,0 +1,33 @@
/* Apple 1 Header File */
//The keyboard data register returns ASCII codes with the high bit set
//These can be safely printed, since the display hardware ignores the high bit
#define CR $8D //Carriage Return key code
#define ESC $9B //Escape key code
#define DEL $DF //Delete (Backspace) key code
//Memory locations used by monitor program
char* buffer = $0200 //Monitor Input Buffer
//PIA 6820 Registers
char* kbd = $D010 //Keyboard Data
char* kbdcr = $D011 //Keyboard Control Register
char* dsp = $D012 //Display Data
char* dspcr = $D013 //Display Control Register
#label exit $FF00 //Monitor Entry Point
/*
void echo(A) = $FFEF //Print Character in Accumulator
void prbyte(A) = $FFDC //Print Accumulator as Hexadadecimal number
void prhex(A) = $FFE5 //Print Low Nybble of Accumulator as Hex Digit
*/
#origin $0300 //$0200 through $02FF used as a string buffer
/*
#asm
#endasm
char getkey();
*/

1
c02.c
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@ -164,6 +164,7 @@ void pargs(int argc, char *argv[])
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
t65c02 = TRUE; //Target 65C02 Processor
debug = TRUE; //Output Debug Info debug = TRUE; //Output Debug Info
gencmt = TRUE; //Generate Assembly Language Comments gencmt = TRUE; //Generate Assembly Language Comments

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c02.exe
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74
c02.ppx
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@ -3,41 +3,87 @@
<category name="expr.h" /> <category name="expr.h" />
<category name="cond.h" /> <category name="cond.h" />
<category name="asm.h" /> <category name="asm.h" />
<category name="c02.c" /> <category name="c02.c">
<category name="Window">
<property name="Left" type="integer">0</property>
<property name="Top" type="integer">0</property>
<property name="Right" type="integer">952</property>
<property name="Bottom" type="integer">310</property>
<property name="Maximized" type="integer">0</property>
<property name="Active" type="integer">0</property>
</category>
</category>
<category name="stmnt.c"> <category name="stmnt.c">
<category name="Window"> <category name="Window">
<property name="Left" type="integer">-8</property> <property name="Left" type="integer">26</property>
<property name="Top" type="integer">-31</property> <property name="Top" type="integer">26</property>
<property name="Right" type="integer">952</property> <property name="Right" type="integer">978</property>
<property name="Bottom" type="integer">422</property> <property name="Bottom" type="integer">336</property>
<property name="Maximized" type="integer">1</property> <property name="Maximized" type="integer">0</property>
<property name="Active" type="integer">1</property> <property name="Active" type="integer">0</property>
</category> </category>
</category> </category>
<category name="asm.c" /> <category name="asm.c" />
<category name="vars.c" /> <category name="vars.c">
<category name="parse.c">
<category name="Window"> <category name="Window">
<property name="Left" type="integer">52</property> <property name="Left" type="integer">52</property>
<property name="Top" type="integer">52</property> <property name="Top" type="integer">52</property>
<property name="Right" type="integer">760</property> <property name="Right" type="integer">1004</property>
<property name="Bottom" type="integer">362</property> <property name="Bottom" type="integer">362</property>
<property name="Maximized" type="integer">0</property> <property name="Maximized" type="integer">0</property>
<property name="Active" type="integer">0</property> <property name="Active" type="integer">0</property>
</category> </category>
</category> </category>
<category name="include.c" /> <category name="parse.c">
<category name="expr.c">
<category name="Window"> <category name="Window">
<property name="Left" type="integer">78</property> <property name="Left" type="integer">78</property>
<property name="Top" type="integer">78</property> <property name="Top" type="integer">78</property>
<property name="Right" type="integer">786</property> <property name="Right" type="integer">1030</property>
<property name="Bottom" type="integer">388</property> <property name="Bottom" type="integer">388</property>
<property name="Maximized" type="integer">0</property> <property name="Maximized" type="integer">0</property>
<property name="Active" type="integer">0</property> <property name="Active" type="integer">0</property>
</category> </category>
</category> </category>
<category name="include.c">
<category name="Window">
<property name="Left" type="integer">104</property>
<property name="Top" type="integer">104</property>
<property name="Right" type="integer">1056</property>
<property name="Bottom" type="integer">414</property>
<property name="Maximized" type="integer">0</property>
<property name="Active" type="integer">0</property>
</category>
</category>
<category name="expr.c">
<category name="Window">
<property name="Left" type="integer">130</property>
<property name="Top" type="integer">130</property>
<property name="Right" type="integer">1082</property>
<property name="Bottom" type="integer">440</property>
<property name="Maximized" type="integer">0</property>
<property name="Active" type="integer">0</property>
</category>
</category>
<category name="parse.h" /> <category name="parse.h" />
<category name="common.h" /> <category name="common.h">
<category name="Window">
<property name="Left" type="integer">0</property>
<property name="Top" type="integer">0</property>
<property name="Right" type="integer">952</property>
<property name="Bottom" type="integer">310</property>
<property name="Maximized" type="integer">0</property>
<property name="Active" type="integer">0</property>
</category>
</category>
<category name="files.c" /> <category name="files.c" />
<category name="common.c">
<category name="Window">
<property name="Left" type="integer">26</property>
<property name="Top" type="integer">26</property>
<property name="Right" type="integer">978</property>
<property name="Bottom" type="integer">336</property>
<property name="Maximized" type="integer">0</property>
<property name="Active" type="integer">0</property>
</category>
</category>
</settings> </settings>

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7
common.h
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@ -20,7 +20,7 @@
#define MAXLAB 15 //Maximum Number of Labels (Nesting Depth) #define MAXLAB 15 //Maximum Number of Labels (Nesting Depth)
#define CPUOP "PROCESSOR" //Target CPU Pseudo-Operator #define CPUOP "PROCESSOR" //Target CPU Pseudo-Operator
#define CPUARG "6502" //Target CPU Operand #define CPUARG "65C02" //Target CPU Operand
#define ORGOP "ORG" //Origin Pseudo-Op #define ORGOP "ORG" //Origin Pseudo-Op
#define EQUOP "EQU" //Equate Pseudo-Op #define EQUOP "EQU" //Equate Pseudo-Op
#define BYTEOP "DC" //Define Byte Pseudo-Op #define BYTEOP "DC" //Define Byte Pseudo-Op
@ -40,8 +40,9 @@
#define ACMNT(str) if (gencmt) {addcmt(str);} #define ACMNT(str) if (gencmt) {addcmt(str);}
#define CCMNT(chr) if (gencmt) {chrcmt(chr);} #define CCMNT(chr) if (gencmt) {chrcmt(chr);}
int gencmt; //Generate Assembly Language Comments int t65c02; //Target 65C02 Processor
int debug; //Print Debug Info (TRUE or FALSE) int gencmt; //Generate Assembly Language Comments
int debug; //Print Debug Info (TRUE or FALSE)
int curcol, curlin; //Position in Source Code int curcol, curlin; //Position in Source Code
int savcol, savlin; //Save Position in Source Code int savcol, savlin; //Save Position in Source Code

3
parse.c
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@ -145,6 +145,7 @@ char escape(char c)
{ {
DEBUG("Escaping character '%c'\n", c); DEBUG("Escaping character '%c'\n", c);
switch (c) { switch (c) {
case 'n': return 0x0a;
case 'r': return 0x0d; case 'r': return 0x0d;
default: return c; default: return c;
} }
@ -158,7 +159,7 @@ void getstr() {
DEBUG("Parsing string\n", 0); DEBUG("Parsing string\n", 0);
strdel = getnxt(); //Get String Delimiter strdel = getnxt(); //Get String Delimiter
CCMNT(strdel); CCMNT(strdel);
while(match(strdel) == escnxt) { while(!match(strdel) || escnxt) {
CCMNT(nxtchr); CCMNT(nxtchr);
if (escnxt) { if (escnxt) {
word[wrdlen++] = escape(getnxt()); word[wrdlen++] = escape(getnxt());

14
stmnt.c
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@ -15,6 +15,12 @@
#include "expr.h" #include "expr.h"
#include "stmnt.h" #include "stmnt.h"
/* Emit BRA or JMP */
void brajmp(char *lbl) {
if (t65c02) asmlin("BRA", lbl);
else asmlin("JMP", lbl);
}
/* Parse Shortcut If */ /* Parse Shortcut If */
void prssif(char trmntr) { void prssif(char trmntr) {
newlbl(cndlbl); //Create Label for "if FALSE" expression newlbl(cndlbl); //Create Label for "if FALSE" expression
@ -22,7 +28,7 @@ void prssif(char trmntr) {
expect('?'); expect('?');
prsxpr(':'); //Parse "if TRUE" expression prsxpr(':'); //Parse "if TRUE" expression
newlbl(tmplbl); //Create End of Expression Label newlbl(tmplbl); //Create End of Expression Label
asmlin("JMP", tmplbl); //Jump over "if FALSE" expression brajmp(tmplbl); //Jump over "if FALSE" expression
setlbl(cndlbl); //Emit "if FALSE" label setlbl(cndlbl); //Emit "if FALSE" label
prsxpr(trmntr); //Parse "if FALSE" expression prsxpr(trmntr); //Parse "if FALSE" expression
setlbl(tmplbl); //Emit End of Expression Label setlbl(tmplbl); //Emit End of Expression Label
@ -194,10 +200,10 @@ void pfor() {
pshlbl(LTLOOP, loplbl); //and Push onto Stack pshlbl(LTLOOP, loplbl); //and Push onto Stack
newlbl(cndlbl); //Create Conditional Label newlbl(cndlbl); //Create Conditional Label
prscnd(';', TRUE); //Parse Conditional Expession prscnd(';', TRUE); //Parse Conditional Expession
asmlin("JMP", endlbl); //Jump over Increment asmlin("JMP", endlbl); //Jump to End of Loop
setlbl(loplbl); //Set to Emit on Next Line setlbl(loplbl); //Set to Emit on Next Line
prsasn(')'); //Parse Increment Assignment prsasn(')'); //Parse Increment Assignment
asmlin("JMP", forlbl); //Jump to Conditional brajmp(forlbl); //Jump to Conditional
setlbl(cndlbl); //Emit Label at Start of Loop setlbl(cndlbl); //Emit Label at Start of Loop
bgnblk(FALSE); //Check For and Begin Block bgnblk(FALSE); //Check For and Begin Block
} }
@ -219,7 +225,7 @@ void pelse() {
lblasm[0] = 0; //and Clear It lblasm[0] = 0; //and Clear It
newlbl(skplbl); //Create Skip Label newlbl(skplbl); //Create Skip Label
pshlbl(LTIF, skplbl); //Push Onto Stack pshlbl(LTIF, skplbl); //Push Onto Stack
asmlin("JMP", skplbl); //Emit Jump over Block Code brajmp(skplbl); //Emit Jump over Block Code
strcpy(lblasm, lbltmp); //Restore Line Label strcpy(lblasm, lbltmp); //Restore Line Label
bgnblk(FALSE); //Check For and Begin Block bgnblk(FALSE); //Check For and Begin Block
} }