83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <getopt.h>
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#include <ctype.h>
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#include "globals.h"
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bool flag_enter_debugger = false;
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char* const* user_command_line = NULL;
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void fatal(const char* message, ...)
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{
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va_list ap;
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va_start(ap, message);
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fprintf(stderr, "fatal: ");
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vfprintf(stderr, message, ap);
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fprintf(stderr, "\n");
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exit(1);
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}
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static void syntax(void)
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{
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printf("cpm [<flags>] [command] [args]:\n");
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printf(" -h this help\n");
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printf(" -d enter debugger on startup\n");
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printf(" -p DRIVE=PATH map a drive to a path (by default, A=.)\n");
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printf("If command is specified, a Unix file of that name will be loaded and\n");
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printf("injected directly into memory (it's not loaded through the CCP).\n");
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printf("Arguments may also be provided, but note that any FCBs aren't set up,\n");
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printf("so traditional Unix utilities probably won't work.\n");
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exit(1);
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}
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static void parse_options(int argc, char* const* argv)
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{
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for (;;)
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{
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switch (getopt(argc, argv, "hdp:"))
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{
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case -1:
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goto end_of_flags;
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case 'd':
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flag_enter_debugger = true;
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break;
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case 'p':
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{
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if (!optarg[0] || (optarg[1] != '='))
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fatal("invalid syntax in drive assignment");
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uint8_t drive = toupper(optarg[0]) - 'A';
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const char* path = &optarg[2];
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file_set_drive(drive, path);
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break;
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}
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default:
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syntax();
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}
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}
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end_of_flags:
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user_command_line = &argv[optind];
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}
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int main(int argc, char* const* argv)
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{
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files_init();
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parse_options(argc, argv);
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emulator_init();
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bios_coldboot();
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for (;;)
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{
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emulator_run();
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}
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return 0;
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}
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