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Add more command line options + usage

This commit is contained in:
Jeffrey Pfau 2014-04-20 21:32:40 -07:00
parent 7c356ffd07
commit 7334b89833
1 changed files with 40 additions and 4 deletions
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44
src/platform/commandline.c
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@ -15,6 +15,7 @@ static const char* _defaultFilename = "test.rom";
static const struct option _options[] = {
{ "bios", 1, 0, 'b' },
{ "debug", 1, 0, 'd' },
{ "gdb", 1, 0, 'g' },
{ 0, 0, 0, 0 }
};
@ -27,14 +28,18 @@ int parseCommandArgs(struct StartupOptions* opts, int argc, char* const* argv) {
opts->height = 160;
opts->fullscreen = 0;
int multiplier = 1;
int ch;
while ((ch = getopt_long(argc, argv, "b:dfg", _options, 0)) != -1) {
while ((ch = getopt_long(argc, argv, "234b:dfg", _options, 0)) != -1) {
switch (ch) {
case 'b':
opts->biosFd = open(optarg, O_RDONLY);
break;
#ifdef USE_CLI_DEBUGGER
case 'd':
if (opts->debuggerType != DEBUGGER_NONE) {
return 0;
}
opts->debuggerType = DEBUGGER_CLI;
break;
#endif
@ -43,19 +48,37 @@ int parseCommandArgs(struct StartupOptions* opts, int argc, char* const* argv) {
break;
#ifdef USE_GDB_STUB
case 'g':
if (opts->debuggerType != DEBUGGER_NONE) {
return 0;
}
opts->debuggerType = DEBUGGER_GDB;
break;
#endif
case '2':
multiplier = 2;
break;
case '3':
multiplier = 3;
break;
case '4':
multiplier = 4;
break;
default:
return 0;
}
}
argc -= optind;
argv += optind;
if (argc) {
if (argc == 1) {
opts->fname = argv[0];
} else {
} else if (argc == 0) {
opts->fname = _defaultFilename;
} else {
return 0;
}
opts->fd = open(opts->fname, O_RDONLY);
opts->width *= multiplier;
opts->height *= multiplier;
return 1;
}
@ -81,6 +104,7 @@ struct ARMDebugger* createDebugger(struct StartupOptions* opts) {
#ifdef USE_GDB_STUB
case DEBUGGER_GDB:
GDBStubCreate(&debugger->gdb);
GDBStubListen(&debugger->gdb, 2345, 0);
break;
#endif
case DEBUGGER_NONE:
@ -94,5 +118,17 @@ struct ARMDebugger* createDebugger(struct StartupOptions* opts) {
}
void usage(const char* arg0) {
printf("%s: bad arguments\n", arg0);
printf("usage: %s [option ...] file\n", arg0);
printf("\nOptions:\n");
printf(" -2 2x viewport\n");
printf(" -3 3x viewport\n");
printf(" -4 4x viewport\n");
printf(" -b, --bios FILE GBA BIOS file to use\n");
#ifdef USE_CLI_DEBUGGER
printf(" -d, --debug Use command-line debugger\n");
#endif
printf(" -f Sart full-screen\n");
#ifdef USE_GDB_STUB
printf(" -g, --gdb Start GDB session (default port 2345)\n");
#endif
}