ref: dca82e6d955641e28b95951659049ebfa55addbf
dir: /src/asm/main.c/
/*
* RGBAsm - MAIN.C
*
* INCLUDES
*
*/
#include <math.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "asm/symbol.h"
#include "asm/fstack.h"
#include "asm/output.h"
#include "asm/main.h"
#include "extern/err.h"
int yyparse(void);
void setuplex(void);
/*
* RGBAsm - MAIN.C
*
* VARIABLES
*
*/
bool haltnop;
clock_t nStartClock, nEndClock;
SLONG nLineNo;
ULONG nTotalLines, nPass, nPC, nIFDepth, nErrors;
extern int yydebug;
/*
* RGBAsm - MAIN.C
*
* Option stack
*
*/
struct sOptions DefaultOptions;
struct sOptions CurrentOptions;
struct sOptionStackEntry {
struct sOptions Options;
struct sOptionStackEntry *pNext;
};
struct sOptionStackEntry *pOptionStack = NULL;
void
opt_SetCurrentOptions(struct sOptions * pOpt)
{
if (nGBGfxID != -1) {
lex_FloatDeleteRange(nGBGfxID, CurrentOptions.gbgfx[0],
CurrentOptions.gbgfx[0]);
lex_FloatDeleteRange(nGBGfxID, CurrentOptions.gbgfx[1],
CurrentOptions.gbgfx[1]);
lex_FloatDeleteRange(nGBGfxID, CurrentOptions.gbgfx[2],
CurrentOptions.gbgfx[2]);
lex_FloatDeleteRange(nGBGfxID, CurrentOptions.gbgfx[3],
CurrentOptions.gbgfx[3]);
lex_FloatDeleteSecondRange(nGBGfxID, CurrentOptions.gbgfx[0],
CurrentOptions.gbgfx[0]);
lex_FloatDeleteSecondRange(nGBGfxID, CurrentOptions.gbgfx[1],
CurrentOptions.gbgfx[1]);
lex_FloatDeleteSecondRange(nGBGfxID, CurrentOptions.gbgfx[2],
CurrentOptions.gbgfx[2]);
lex_FloatDeleteSecondRange(nGBGfxID, CurrentOptions.gbgfx[3],
CurrentOptions.gbgfx[3]);
}
if (nBinaryID != -1) {
lex_FloatDeleteRange(nBinaryID, CurrentOptions.binary[0],
CurrentOptions.binary[0]);
lex_FloatDeleteRange(nBinaryID, CurrentOptions.binary[1],
CurrentOptions.binary[1]);
lex_FloatDeleteSecondRange(nBinaryID, CurrentOptions.binary[0],
CurrentOptions.binary[0]);
lex_FloatDeleteSecondRange(nBinaryID, CurrentOptions.binary[1],
CurrentOptions.binary[1]);
}
CurrentOptions = *pOpt;
if (nGBGfxID != -1) {
lex_FloatAddRange(nGBGfxID, CurrentOptions.gbgfx[0],
CurrentOptions.gbgfx[0]);
lex_FloatAddRange(nGBGfxID, CurrentOptions.gbgfx[1],
CurrentOptions.gbgfx[1]);
lex_FloatAddRange(nGBGfxID, CurrentOptions.gbgfx[2],
CurrentOptions.gbgfx[2]);
lex_FloatAddRange(nGBGfxID, CurrentOptions.gbgfx[3],
CurrentOptions.gbgfx[3]);
lex_FloatAddSecondRange(nGBGfxID, CurrentOptions.gbgfx[0],
CurrentOptions.gbgfx[0]);
lex_FloatAddSecondRange(nGBGfxID, CurrentOptions.gbgfx[1],
CurrentOptions.gbgfx[1]);
lex_FloatAddSecondRange(nGBGfxID, CurrentOptions.gbgfx[2],
CurrentOptions.gbgfx[2]);
lex_FloatAddSecondRange(nGBGfxID, CurrentOptions.gbgfx[3],
CurrentOptions.gbgfx[3]);
}
if (nBinaryID != -1) {
lex_FloatAddRange(nBinaryID, CurrentOptions.binary[0],
CurrentOptions.binary[0]);
lex_FloatAddRange(nBinaryID, CurrentOptions.binary[1],
CurrentOptions.binary[1]);
lex_FloatAddSecondRange(nBinaryID, CurrentOptions.binary[0],
CurrentOptions.binary[0]);
lex_FloatAddSecondRange(nBinaryID, CurrentOptions.binary[1],
CurrentOptions.binary[1]);
}
}
void
opt_Parse(char *s)
{
struct sOptions newopt;
newopt = CurrentOptions;
switch (s[0]) {
case 'g':
if (strlen(&s[1]) == 4) {
newopt.gbgfx[0] = s[1];
newopt.gbgfx[1] = s[2];
newopt.gbgfx[2] = s[3];
newopt.gbgfx[3] = s[4];
} else {
errx(1, "Must specify exactly 4 characters for "
"option 'g'");
}
break;
case 'b':
if (strlen(&s[1]) == 2) {
newopt.binary[0] = s[1];
newopt.binary[1] = s[2];
} else {
errx(1, "Must specify exactly 2 characters for option "
"'b'");
}
break;
case 'z':
if (strlen(&s[1]) <= 2) {
int result;
result = sscanf(&s[1], "%lx", &newopt.fillchar);
if (!((result == EOF) || (result == 1))) {
errx(1, "Invalid argument for option 'z'");
}
} else {
errx(1, "Invalid argument for option 'z'");
exit(1);
}
break;
default:
fatalerror("Unknown option");
break;
}
opt_SetCurrentOptions(&newopt);
}
void
opt_Push(void)
{
struct sOptionStackEntry *pOpt;
if ((pOpt = malloc(sizeof(struct sOptionStackEntry))) != NULL) {
pOpt->Options = CurrentOptions;
pOpt->pNext = pOptionStack;
pOptionStack = pOpt;
} else
fatalerror("No memory for option stack");
}
void
opt_Pop(void)
{
if (pOptionStack) {
struct sOptionStackEntry *pOpt;
pOpt = pOptionStack;
opt_SetCurrentOptions(&(pOpt->Options));
pOptionStack = pOpt->pNext;
free(pOpt);
} else
fatalerror("No entries in the option stack");
}
/*
* RGBAsm - MAIN.C
*
* Error handling
*
*/
void
verror(const char *fmt, va_list args)
{
fprintf(stderr, "ERROR:\t");
fstk_Dump();
fprintf(stderr, " :\n\t");
vfprintf(stderr, fmt, args);
fprintf(stderr, "\n");
nErrors += 1;
}
void
yyerror(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
verror(fmt, args);
va_end(args);
}
void
fatalerror(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
verror(fmt, args);
va_end(args);
exit(5);
}
/*
* RGBAsm - MAIN.C
*
* Help text
*
*/
void
PrintUsage(void)
{
printf("Usage: rgbasm [-v] [-h] [-b chars] [-g chars] [-i path] [-o outfile] [-p pad_value]\n"
" file\n");
exit(1);
}
/*
* RGBAsm - MAIN.C
*
* main
*
*/
int
main(int argc, char *argv[])
{
int ch;
char *ep;
struct sOptions newopt;
char *tzMainfile;
haltnop = true;
if (argc == 1)
PrintUsage();
/* yydebug=1; */
DefaultOptions.gbgfx[0] = '0';
DefaultOptions.gbgfx[1] = '1';
DefaultOptions.gbgfx[2] = '2';
DefaultOptions.gbgfx[3] = '3';
DefaultOptions.binary[0] = '0';
DefaultOptions.binary[1] = '1';
DefaultOptions.fillchar = 0;
DefaultOptions.verbose = false;
opt_SetCurrentOptions(&DefaultOptions);
newopt = CurrentOptions;
while ((ch = getopt(argc, argv, "b:g:hi:o:p:v")) != -1) {
switch (ch) {
case 'b':
if (strlen(optarg) == 2) {
newopt.binary[0] = optarg[1];
newopt.binary[1] = optarg[2];
} else {
errx(1, "Must specify exactly 2 characters for "
"option 'b'");
}
break;
case 'g':
if (strlen(optarg) == 4) {
newopt.gbgfx[0] = optarg[1];
newopt.gbgfx[1] = optarg[2];
newopt.gbgfx[2] = optarg[3];
newopt.gbgfx[3] = optarg[4];
} else {
errx(1, "Must specify exactly 4 characters for "
"option 'g'");
}
break;
case 'h':
haltnop = false;
break;
case 'i':
fstk_AddIncludePath(optarg);
break;
case 'o':
out_SetFileName(optarg);
break;
case 'p':
newopt.fillchar = strtoul(optarg, &ep, 0);
if (optarg[0] == '\0' || *ep != '\0') {
errx(1, "Invalid argument for option 'p'");
}
if (newopt.fillchar < 0 || newopt.fillchar > 0xFF) {
errx(1, "Argument for option 'p' must be "
"between 0 and 0xFF");
}
break;
case 'v':
newopt.verbose = true;
break;
default:
PrintUsage();
}
}
argc -= optind;
argv += optind;
opt_SetCurrentOptions(&newopt);
DefaultOptions = CurrentOptions;
tzMainfile = argv[argc - 1];
setuplex();
if (CurrentOptions.verbose) {
printf("Assembling %s\n", tzMainfile);
}
nStartClock = clock();
nLineNo = 1;
nTotalLines = 0;
nIFDepth = 0;
nPC = 0;
nPass = 1;
nErrors = 0;
sym_PrepPass1();
fstk_Init(tzMainfile);
if (CurrentOptions.verbose) {
printf("Pass 1...\n");
}
yy_set_state(LEX_STATE_NORMAL);
opt_SetCurrentOptions(&DefaultOptions);
if (yyparse() == 0 && nErrors == 0) {
if (nIFDepth == 0) {
nTotalLines = 0;
nLineNo = 1;
nIFDepth = 0;
nPC = 0;
nPass = 2;
nErrors = 0;
sym_PrepPass2();
out_PrepPass2();
fstk_Init(tzMainfile);
yy_set_state(LEX_STATE_NORMAL);
opt_SetCurrentOptions(&DefaultOptions);
if (CurrentOptions.verbose) {
printf("Pass 2...\n");
}
if (yyparse() == 0 && nErrors == 0) {
double timespent;
nEndClock = clock();
timespent =
((double) (nEndClock - nStartClock))
/ (double) CLOCKS_PER_SEC;
if (CurrentOptions.verbose) {
printf
("Success! %ld lines in %d.%02d seconds ",
nTotalLines, (int) timespent,
((int) (timespent * 100.0)) % 100);
if (timespent == 0)
printf
("(INFINITY lines/minute)\n");
else
printf("(%d lines/minute)\n",
(int) (60 / timespent *
nTotalLines));
}
out_WriteObject();
} else {
printf
("Assembly aborted in pass 2 (%ld errors)!\n",
nErrors);
//sym_PrintSymbolTable();
exit(5);
}
} else {
errx(1, "Unterminated IF construct (%ld levels)!",
nIFDepth);
}
} else {
errx(1, "Assembly aborted in pass 1 (%ld errors)!",
nErrors);
}
return 0;
}