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This commit is contained in:
Michael Specht
parent
f4f97bd4c9
commit
fe8088a224
4
Makefile
4
Makefile
@ -1,2 +1,6 @@
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champ: champ.c labels.h
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gcc -o champ champ.c -lX11
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labels.h: parse.rb plot3d20_Output.txt
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./parse.rb
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84
champ.c
84
champ.c
@ -40,6 +40,10 @@ uint64_t last_frame_cycle_count = 0;
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uint64_t frame_cycle_count = 0;
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uint64_t frame_count = 0;
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uint16_t start_pc = 0x6000;
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uint16_t start_frame_pc = 0xffff;
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uint64_t max_frames = 0;
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int init_display()
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{
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dsp = XOpenDisplay(NULL);
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@ -129,11 +133,11 @@ void load(char* path, uint16_t offset)
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f = fopen(path, "rw");
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if (!f)
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{
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printf("Error reading file: %s\n", path);
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fprintf(stderr, "Error reading file: %s\n", path);
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exit(1);
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}
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size = fread(buffer, 1, 0x10000, f);
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printf("Read 0x%04x bytes from %s, saved to 0x%04x.\n", (int)size, path, offset);
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fprintf(stderr, "Read 0x%04x bytes from %s, saved to 0x%04x.\n", (int)size, path, offset);
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memcpy(ram + offset, buffer, size);
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fclose(f);
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}
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@ -177,7 +181,7 @@ void push(uint8_t value)
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{
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if (cpu.sp == 0)
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{
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printf("Stack overflow!\n");
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fprintf(stderr, "Stack overflow!\n");
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exit(1);
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}
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ram[(uint16_t)cpu.sp + 0x100] = value;
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@ -188,7 +192,7 @@ uint8_t pop()
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{
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if (cpu.sp == 0xff)
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{
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printf("Stack underrun!\n");
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fprintf(stderr, "Stack underrun!\n");
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exit(1);
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}
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cpu.sp++;
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@ -602,7 +606,7 @@ void handle_next_opcode()
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if (opcode == NO_OPCODE || addressing_mode == NO_ADDRESSING_MODE)
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{
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printf("Unhandled opcode at %04x: %02x\n", old_ip, read_opcode);
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fprintf(stderr, "Unhandled opcode at %04x: %02x\n", old_ip, read_opcode);
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exit(1);
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}
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@ -662,7 +666,7 @@ void handle_next_opcode()
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if (show_log)
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{
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printf("%04x | %d | %02x | %s %-18s | ", old_ip, cycles, read_opcode, OPCODE_STRINGS[opcode],
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fprintf(stderr, "%04x | %d | %02x | %s %-18s | ", old_ip, cycles, read_opcode, OPCODE_STRINGS[opcode],
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ADDRESSING_MODE_STRINGS[addressing_mode]
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);
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}
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@ -971,7 +975,7 @@ void handle_next_opcode()
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};
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if (unhandled_opcode)
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{
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printf("Opcode not implemented yet!\n");
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fprintf(stderr, "Opcode not implemented yet!\n");
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exit(1);
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}
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cpu.total_cycles += cycles;
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@ -987,9 +991,9 @@ void handle_next_opcode()
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flags_str[4] = test_flag(NEGATIVE) ? 'N' : 'n';
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flags_str[5] = 0;
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printf("A: %02x, X: %02x, Y: %02x, PC: %04x, SP: %02x, FLAGS: %02x %s | %10ld |",
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fprintf(stderr, "A: %02x, X: %02x, Y: %02x, PC: %04x, SP: %02x, FLAGS: %02x %s | %10ld |",
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cpu.a, cpu.x, cpu.y, cpu.ip, cpu.sp, cpu.flags, flags_str, cpu.total_cycles);
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printf("\n");
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fprintf(stderr, "\n");
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}
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}
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@ -1018,6 +1022,17 @@ void render_hires_screen()
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}
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}
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int32_t find_address_for_label(const char* label)
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{
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for (int i = 0; i < LABEL_COUNT; i++)
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if ((strlen(label) == strlen(LABELS[i])) &&
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(strcmp(label, LABELS[i]) == 0))
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for (int k = 0; k < 0x10000; k++)
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if (label_for_address[k] == i)
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return k;
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return -1;
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}
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int main(int argc, char** argv)
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{
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if (argc < 2)
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@ -1027,31 +1042,62 @@ int main(int argc, char** argv)
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printf("Options:\n");
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printf(" --show-screen\n");
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printf(" --hide-log\n");
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printf(" --start-pc <address or label>\n");
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printf(" --frame-start <address or label>\n");
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printf(" --max-frames <n>\n");
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exit(1);
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}
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for (int i = 1; i < argc; i++)
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for (int i = 1; i < argc - 1; i++)
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{
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if (strcmp(argv[i], "--show-screen") == 0)
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show_screen = 1;
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if (strcmp(argv[i], "--hide-log") == 0)
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else if (strcmp(argv[i], "--hide-log") == 0)
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show_log = 0;
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else if (strcmp(argv[i], "--start-pc") == 0)
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{
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char *temp = argv[++i];
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char *p = 0;
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start_pc = strtol(temp, &p, 0);
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if (p == temp)
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start_pc = find_address_for_label(temp);
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fprintf(stderr, "Using start PC: 0x%04x\n", start_pc);
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}
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else if (strcmp(argv[i], "--start-frame") == 0)
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{
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char *temp = argv[++i];
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char *p = 0;
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start_frame_pc = strtol(temp, &p, 0);
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if (p == temp)
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start_frame_pc = find_address_for_label(temp);
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fprintf(stderr, "Using frame start: 0x%04x\n", start_frame_pc);
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}
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else if (strcmp(argv[i], "--max-frames") == 0)
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{
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char *temp = argv[++i];
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char *p = 0;
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max_frames = strtol(temp, &p, 0);
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if (p == temp)
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max_frames = find_address_for_label(temp);
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fprintf(stderr, "Max frames: %d\n", max_frames);
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}
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else
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{
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fprintf(stderr, "Unknown argument: %s\n", argv[i]);
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exit(1);
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}
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}
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memset(ram, 0, sizeof(ram));
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memset(cycles_per_function, 0, sizeof(cycles_per_function));
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memset(calls_per_function, 0, sizeof(calls_per_function));
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load(argv[argc - 1], 0);
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// rotation mode
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// ram[0x35b] = 0;
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// high quality wireframe mode
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// ram[0x35c] = 0;
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if (show_screen)
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init_display();
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init_cpu(&cpu);
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cpu.ip = 0x6017;
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cpu.ip = start_pc;
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struct timespec tstart = {0, 0};
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clock_gettime(CLOCK_MONOTONIC, &tstart);
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unsigned long start_time = tstart.tv_sec * 1000000000 + tstart.tv_nsec;
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@ -1061,7 +1107,7 @@ int main(int argc, char** argv)
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// if (cpu.ip >= 0xf5b2)
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// printf("*** ");
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handle_next_opcode();
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if (cpu.ip == 0x6404)
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if ((start_frame_pc != 0xffff) && (cpu.ip == start_frame_pc))
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{
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if (last_frame_cycle_count > 0)
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{
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@ -1114,8 +1160,8 @@ int main(int argc, char** argv)
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}
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}
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}
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printf("Total cycles: %d\n", cpu.total_cycles);
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printf("Cycles per frame: %d\n", (uint64_t)((double)frame_cycle_count / frame_count));
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fprintf(stderr, "Total cycles: %d\n", cpu.total_cycles);
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fprintf(stderr, "Cycles per frame: %d\n", (uint64_t)((double)frame_cycle_count / frame_count));
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for (uint32_t i = 0; i < 0x10000; i++)
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{
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if (cycles_per_function[i] > 0)
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1
labels.h
1
labels.h
@ -1,3 +1,4 @@
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const uint16_t LABEL_COUNT = 692;
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const char* LABELS[] = {
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"]active_col", "]andmask", "]cur_line", "]cur_pix", "]hbash",
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"]hbasl", "]lftbit", "]lftbyte", "]line", "]offset", "]repting",
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3
parse.rb
3
parse.rb
@ -27,6 +27,7 @@ symbols.uniq!
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symbols.sort! { |a, b| a.downcase <=> b.downcase }
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File::open('labels.h', 'w') do |f|
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f.puts "const uint16_t LABEL_COUNT = #{symbols.size};"
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f.puts "const char* LABELS[] = {";
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line_length = 0
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f.print ' '
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@ -61,6 +62,8 @@ File::open('labels.h', 'w') do |f|
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f.puts "};";
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end
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puts "Found #{symbols.size} labels."
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# label_for_address.keys.sort.each do |address|
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# puts sprintf("%04x %s", address, label_for_address[address])
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# end
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