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Added on-screen info rendering

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0xmac 2025-01-23 11:30:32 +01:00
parent f1ff0606e7
commit f99d710a8b
1 changed files with 70 additions and 42 deletions
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88
src/main.c
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@ -1,3 +1,4 @@
#include <SDL2/SDL_render.h>
#include <stdio.h> #include <stdio.h>
#include <stdint.h> #include <stdint.h>
#include <stdlib.h> #include <stdlib.h>
@ -25,19 +26,23 @@ uint8_t halt = 0;
uint8_t showHelp = 0; uint8_t showHelp = 0;
uint8_t showDebug = 0; uint8_t showDebug = 0;
uint8_t fpsCount = 0; uint8_t fpsCount = 0;
uint8_t displayMmap = 0;
uint8_t documentReload = 0;
uint8_t fpsStore; uint8_t fpsStore = 60;
uint8_t FPS = 30;
uint8_t cpuHealth; uint8_t cpuHealth;
unsigned long cpuTicks = 0; unsigned long cpuTicks = 0;
unsigned long tickTrigger = 0; unsigned long tickTrigger = 0;
unsigned long renderTrigger = 0;
char debugString[255]; char debugString[512];
char snapshotFile[32];
char *inputFile;
int openFile(const char *inputFile){ int openFile(){
FILE *file = fopen(inputFile, "rb"); FILE *file = fopen(inputFile, "rb");
int retCode = 0; int retCode = 0;
@ -60,32 +65,23 @@ void resetSystem(){
reset6502(); reset6502();
} }
void writeHelp(int type){
if (!type) printf(HELP);
else printf(HELPKEYS);
exit(EXIT_SUCCESS);
}
void writePreamble() {
printf(PREAMBLE);
}
void fetchArgs(int argc, char *argv[]){ void fetchArgs(int argc, char *argv[]){
writePreamble(); printf(PREAMBLE);
for (int i = 1; i < argc; i++) { for (int i = 1; i < argc; i++) {
if (!strcmp(argv[i], "--help")) writeHelp(0); if (!strcmp(argv[i], "--help")) printf(HELP);
else if (!strcmp(argv[i], "--help-keys")) writeHelp(1); else if (!strcmp(argv[i], "--help-keys")) printf(HELPKEYS);
else if (!strcmp(argv[i], "--cpuspeed")) cpuSpeed = atoi(argv[++i]); else if (!strcmp(argv[i], "--cpuspeed")) cpuSpeed = atoi(argv[++i]);
else if (!strcmp(argv[i], "--scale")) displayScale = atof(argv[++i]); else if (!strcmp(argv[i], "--scale")) displayScale = atof(argv[++i]);
else if (!strcmp(argv[i], "--singlestep")) singleStep = 1; else if (!strcmp(argv[i], "--singlestep")) singleStep = 1;
else if (!strcmp(argv[i], "--clocksteps")) clockSteps = atoi(argv[++i]); else if (!strcmp(argv[i], "--clocksteps")) clockSteps = atoi(argv[++i]);
//else if (!strcmp(argv[i], "--snapshot")) snapshotFile = &argv[i]; //else if (!strcmp(argv[i], "--snapshot")) snapshotFile = &argv[i];
else if (!strcmp(argv[i], "--fps")) FPS = atoi(argv[++i]);
else if (!strcmp(argv[i], "--enable-reload")) documentReload = 1;
else { else {
if (openFile(argv[i])){ inputFile = argv[i];
printf("Unknown parameter or file '%s'\nTry '--help' for help\n", argv[i]); if (openFile()){
printf("%s: Unknown parameter or file '%s'\nTry '--help' for help\n", argv[0], argv[i]);
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
} }
@ -100,15 +96,14 @@ int main(int argc, char *argv[]){
resetSystem(); resetSystem();
while (1){ while (1){
SDL_Delay(32); SDL_Delay(1000.f / FPS);
pollEvents(); pollEvents();
fpsCount++; fpsCount++;
updateVideo(); updateVideo();
if (!singleStep && !halt){ if (!singleStep && !halt){
for (int i = 0; i < (cpuSpeed / FPS) * 2; i++) { for (int i = 0; i < ((float)cpuSpeed / (float)fpsStore); i++) {
step6502(); step6502();
cpuTicks++; cpuTicks++;
} }
@ -121,13 +116,45 @@ int main(int argc, char *argv[]){
cpuHealth = (uint8_t)((cpuTicks / (float)cpuSpeed) * 100.); cpuHealth = (uint8_t)((cpuTicks / (float)cpuSpeed) * 100.);
cpuTicks = 0; cpuTicks = 0;
fpsStore = fpsCount; fpsStore = fpsCount; fpsCount = 0;
fpsCount = 0;
/* Refresh entire video buffer */
videoModified = 1;
} }
/* Redraw entire screen every X seconds */
//if ((unsigned)time(NULL) > renderTrigger + 0){ uint16_t vStack = 16;
renderTrigger = (unsigned)time(NULL);
if (halt) {
drawString("!CPU Haltet!", renderMemory,
SDL_X_SIZE, 0x000000FF, time(NULL) % 2 ? 0xAAAAAAFF : 0xFFFFFFFF, 16, vStack, 2);
vStack += (FONT_HEIGHT * 2 * 2);
} if (showDebug){
sprintf(debugString, "LOADED BINARY: \"%s\"\nSCREENSIZE: %dx%d\nFPS: %d\nSCALE: %d", inputFile, SDL_X_SIZE, SDL_Y_SIZE, fpsStore, (int)displayScale);
drawString(debugString, renderMemory,
SDL_X_SIZE, 0x000000FF, 0xAAAAAAFF, 16, vStack, 2);
vStack += (FONT_HEIGHT * 4 * 2);
sprintf(debugString, "CPU: %d%%", cpuHealth);
drawString(debugString, renderMemory,
SDL_X_SIZE, 0x000000FF, time(NULL) % 2 ? 0xAAAAAAFF : cpuHealth < 10 ?
0xFF0000FF : cpuHealth < 50 ? 0xFFFF00FF : 0xAAAAAAFF, 16, vStack, 2);
vStack += (FONT_HEIGHT * 2 * 2);
} if (displayMmap){
sprintf(debugString, "RAM: $%04X - $%04X\nROM: $%04X - $%04X\nVIAADDRS: $%04X\nKBDADDRS: $%04X\nVIDADDRS: $%04X", RAMLOC, RAMLOC + RAMSIZE, ROMLOC, ROMLOC + ROMSIZE, VIAADDRS, KBDADDRS, VIDADDRS);
drawString(debugString, renderMemory, SDL_X_SIZE, 0x000000FF, 0xAAAAAAFF, 16, vStack, 2);
vStack += (FONT_HEIGHT * 6 * 2);
} if (showHelp) {
drawString(HELPKEYS, renderMemory, SDL_X_SIZE, 0x000000FF, 0xAAAAAAFF, 16, vStack, 2);
vStack += (FONT_HEIGHT * 2 * 2);
}
if (SDL_UpdateTexture(texture, NULL, renderMemory, (sizeof(uint32_t) * SDL_X_SIZE))) { if (SDL_UpdateTexture(texture, NULL, renderMemory, (sizeof(uint32_t) * SDL_X_SIZE))) {
fprintf(stderr, "Could not update SDL texture: %s.\n", SDL_GetError()); fprintf(stderr, "Could not update SDL texture: %s.\n", SDL_GetError());
@ -137,11 +164,12 @@ int main(int argc, char *argv[]){
fprintf(stderr, "Could not display SDL texture: %s.\n", SDL_GetError()); fprintf(stderr, "Could not display SDL texture: %s.\n", SDL_GetError());
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
SDL_RenderPresent(renderer); SDL_RenderPresent(renderer);
//}
} }
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }