6502/pretty6502
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Added support for Z80 processor and tniASM. Solved bug in apostrophe processing

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nanochess 2018-04-16 13:59:08 -05:00
parent f3b66b8a31
commit a1c8fa13fb
2 changed files with 97 additions and 20 deletions
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11
README
View File

@ -6,26 +6,35 @@ Usage:
pretty6502 [args] input.asm output.asm
DON'T USE SAME OUTPUT FILE AS INPUT, though it's possible,
you can DAMAGE YOUR SOURCE if this program has bugs.
you can DAMAGE YOUR SOURCE if Pretty6502 has undiscovered
bugs.
Arguments:
-s0 Code in four columns (default)
label: mnemonic operand comment
-s1 Code in three columns
label: mnemonic+operand comment
-p0 Processor unknown.
-p1 Processor 6502 + DASM syntax (default)
-p2 Processor Z80 + tniASM syntax
-m8 Start of mnemonic column (default)
-o16 Start of operand column (default)
-c32 Start of comment column (default)
-t8 Use tabs of size 8 to reach column
-t0 Use spaces to align (default)
-a0 Align comments to nearest column
-a1 Comments at line start are aligned
to mnemonic (default)
-n4 Nesting spacing (can be any number
of spaces or multiple of tab size)
-l Put labels in its own line
-dl Change directives to lowercase
-du Change directives to uppercase
-ml Change mnemonics to lowercase

76
pretty6502.c
View File

@ -10,6 +10,8 @@
** Tries to preserve vertical structure of comments.
** Allows label in its own line. Allows to change case
** of mnemonics and directives.
** Revision date: Apr/16/2018. Added support for Z80 + tniASM. Solved bug in
** processing of apostrophe in operand.
*/
#include <stdio.h>
@ -19,6 +21,7 @@
#define VERSION "v0.2"
int tabs;
int processor;
/*
** 6502 mnemonics
@ -36,6 +39,21 @@ char *mnemonics_6502[] = {
"txa", "txs", "tya", NULL,
};
/*
** Z80 mnemonics
*/
char *mnemonics_z80[] = {
"adc", "add", "and", "bit", "call", "ccf", "cp", "cpd",
"cpdr", "cpi", "cpir", "cpl", "daa", "dec", "di", "djnz",
"ei", "ex", "exx", "halt", "im", "in", "inc", "ind",
"indr", "ini", "inir", "jp", "jr", "ld", "ldd", "lddr",
"ldi", "ldir", "neg", "nop", "or", "otdr", "otir", "out",
"outd", "outi", "pop", "push", "res", "ret", "reti", "retn",
"rl", "rla", "rlc", "rlca", "rld", "rr", "rra", "rrc",
"rrca", "rrd", "rst", "sbc", "scf", "set", "sla", "sra",
"srl", "sub", "xor", NULL,
};
#define DONT_RELOCATE_LABEL 0x01
#define LEVEL_IN 0x02
#define LEVEL_OUT 0x04
@ -88,6 +106,36 @@ struct {
NULL, 0,
};
/*
** tniASM directives
*/
struct {
char *directive;
int flags;
} directives_tniasm[] = {
"cpu", 0,
"db", 0,
"dc", 0,
"ds", 0,
"dw", 0,
"dephase", 0,
"else", LEVEL_MINUS,
"endif", LEVEL_OUT,
"equ", DONT_RELOCATE_LABEL,
"fname", 0,
"forg", 0,
"if", LEVEL_IN,
"ifdef", LEVEL_IN,
"ifexist", LEVEL_IN,
"incbin", 0,
"include", 0,
"org", 0,
"phase", 0,
"rb", 0,
"rw", 0,
NULL, 0,
};
/*
** Comparison without case
*/
@ -110,6 +158,7 @@ int check_opcode(char *p1, char *p2)
int c;
int length;
if (processor == 1) {
for (c = 0; directives_dasm[c].directive != NULL; c++) {
length = strlen(directives_dasm[c].directive);
if ((*p1 == '.' && length == p2 - p1 - 1 && memcmpcase(p1 + 1, directives_dasm[c].directive, p2 - p1 - 1) == 0) || (length == p2 - p1 && memcmpcase(p1, directives_dasm[c].directive, p2 - p1) == 0)) {
@ -121,6 +170,20 @@ int check_opcode(char *p1, char *p2)
if (length == p2 - p1 && memcmpcase(p1, mnemonics_6502[c], p2 - p1) == 0)
return -(c + 1);
}
}
if (processor == 2) {
for (c = 0; directives_tniasm[c].directive != NULL; c++) {
length = strlen(directives_tniasm[c].directive);
if (length == p2 - p1 && memcmpcase(p1, directives_tniasm[c].directive, p2 - p1) == 0) {
return c + 1;
}
}
for (c = 0; mnemonics_z80[c] != NULL; c++) {
length = strlen(mnemonics_z80[c]);
if (length == p2 - p1 && memcmpcase(p1, mnemonics_z80[c], p2 - p1) == 0)
return -(c + 1);
}
}
return 0;
}
@ -163,7 +226,6 @@ int main(int argc, char *argv[])
{
int c;
int style;
int processor;
int start_mnemonic;
int start_operand;
int start_comment;
@ -207,6 +269,7 @@ int main(int argc, char *argv[])
fprintf(stderr, " label: mnemonic+operand comment\n");
fprintf(stderr, " -p0 Processor unknown\n");
fprintf(stderr, " -p1 Processor 6502 + DASM syntax (default)\n");
fprintf(stderr, " -p2 Processor Z80 + tniASM syntax\n");
fprintf(stderr, " -m8 Start of mnemonic column (default)\n");
fprintf(stderr, " -o16 Start of operand column (default)\n");
fprintf(stderr, " -c32 Start of comment column (default)\n");
@ -265,7 +328,7 @@ int main(int argc, char *argv[])
break;
case 'p': /* Processor */
processor = atoi(&argv[c][2]);
if (processor < 0 || processor > 1) {
if (processor < 0 || processor > 2) {
fprintf(stderr, "Bad processor code: %d\n", processor);
exit(1);
}
@ -438,14 +501,17 @@ int main(int argc, char *argv[])
p2 = p1;
while (*p2 && !isspace(*p2) && *p2 != ';')
p2++;
if (processor == 1) {
if (processor != 0) {
c = check_opcode(p1, p2);
if (c == 0) {
request = start_mnemonic;
} else if (c < 0) {
request = start_mnemonic;
} else {
if (processor == 1)
flags = directives_dasm[c - 1].flags;
else if (processor == 2)
flags = directives_tniasm[c - 1].flags;
if (flags & DONT_RELOCATE_LABEL)
request = start_operand;
else
@ -518,9 +584,11 @@ int main(int argc, char *argv[])
p2++;
} else if (*p2 == '\'') {
p2++;
while (*p2 && *p2 != '"')
if (p2 - p1 < 6 || memcmp(p2 - 6, "AF,AF'", 6) != 0) {
while (*p2 && *p2 != '\'')
p2++;
p2++;
}
} else {
p2++;
}