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comparison debug.c @ 1921:5d028088e320

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Added help commands to debugger
author Eric Fry <yuv422@users.noreply.github.com>
date Fri, 10 Apr 2020 13:30:16 +1000
parents 7b41cb36e7df
children 4a811fd1fb6f
comparison
equal deleted inserted replaced
1920:7b41cb36e7df 1921:5d028088e320
550 } else { 550 } else {
551 fputs("Failed to find a RAM memory chunk\n", stderr); 551 fputs("Failed to find a RAM memory chunk\n", stderr);
552 } 552 }
553 break; 553 break;
554 } 554 }
555 case '?':
556 print_z80_help();
557 break;
555 default: 558 default:
556 if ( 559 if (
557 !context->Z80_OPTS->gen.debug_cmd_handler 560 !context->Z80_OPTS->gen.debug_cmd_handler
558 || !context->Z80_OPTS->gen.debug_cmd_handler(&system->header, input_buf) 561 || !context->Z80_OPTS->gen.debug_cmd_handler(&system->header, input_buf)
559 ) { 562 ) {
560 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf); 563 fprintf(stderr, "Unrecognized debugger command %s\nUse '?' for help.\n", input_buf);
561 } 564 }
562 break; 565 break;
563 } 566 }
564 } 567 }
565 return context; 568 return context;
923 zdebugger_print(gen->z80, input_buf[2] == '/' ? input_buf[3] : 0, param); 926 zdebugger_print(gen->z80, input_buf[2] == '/' ? input_buf[3] : 0, param);
924 } 927 }
925 break; 928 break;
926 } 929 }
927 #endif 930 #endif
931 case '?':
932 print_m68k_help();
933 break;
928 case 'q': 934 case 'q':
929 puts("Quitting"); 935 puts("Quitting");
930 exit(0); 936 exit(0);
931 break; 937 break;
932 default: 938 default:
933 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf); 939 fprintf(stderr, "Unrecognized debugger command %s\nUse '?' for help.\n", input_buf);
934 break; 940 break;
935 } 941 }
936 return 1; 942 return 1;
937 } 943 }
938 944
945 void print_m68k_help()
946 {
947 printf("M68k Debugger Commands\n");
948 printf(" b ADDRESS - Set a breakpoint at ADDRESS\n");
949 printf(" d BREAKPOINT - Delete a 68K breakpoint\n");
950 printf(" co BREAKPOINT - Run a list of debugger commands each time\n");
951 printf(" BREAKPOINT is hit\n");
952 printf(" a ADDRESS - Advance to address\n");
953 printf(" n - Advance to next instruction\n");
954 printf(" o - Advance to next instruction ignoring branches to\n");
955 printf(" lower addresses (good for breaking out of loops)\n");
956 printf(" s - Advance to next instruction (follows bsr/jsr)\n");
957 printf(" c - Continue\n");
958 printf(" bt - Print a backtrace\n");
959 printf(" p[/(x|X|d|c)] VALUE - Print a register or memory location\n");
960 printf(" di[/(x|X|d|c)] VALUE - Print a register or memory location each time\n");
961 printf(" a breakpoint is hit\n");
962 printf(" vs - Print VDP sprite list\n");
963 printf(" vr - Print VDP register info\n");
964 printf(" zb ADDRESS - Set a Z80 breakpoint\n");
965 printf(" zp[/(x|X|d|c)] VALUE - Display a Z80 value\n");
966 printf(" ? - Display help\n");
967 printf(" q - Quit BlastEm\n");
968 }
969
970 void print_z80_help()
971 {
972 printf("Z80 Debugger Commands\n");
973 printf(" b ADDRESS - Set a breakpoint at ADDRESS\n");
974 printf(" de BREAKPOINT - Delete a Z80 breakpoint\n");
975 printf(" a ADDRESS - Advance to address\n");
976 printf(" n - Advance to next instruction\n");
977 printf(" c - Continue\n");
978 printf(" p[/(x|X|d|c)] VALUE - Print a register or memory location\n");
979 printf(" di[/(x|X|d|c)] VALUE - Print a register or memory location each time\n");
980 printf(" a breakpoint is hit\n");
981 printf(" q - Quit BlastEm\n");
982 }
939 983
940 void debugger(m68k_context * context, uint32_t address) 984 void debugger(m68k_context * context, uint32_t address)
941 { 985 {
942 static char last_cmd[1024]; 986 static char last_cmd[1024];
943 char input_buf[1024]; 987 char input_buf[1024];