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keyboard

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This commit is contained in:
Antoni Piasecki
2025-07-12 14:59:45 +02:00
parent 8622df3bc0
commit ba170f2aae
1 changed files with 22 additions and 6 deletions
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26
chip8.c
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@@ -1,5 +1,4 @@
// http://devernay.free.fr/hacks/chip8/C8TECH10.HTM // http://devernay.free.fr/hacks/chip8/C8TECH10.HTM
// TODO: keyboard
// TODO: buzzer // TODO: buzzer
#include <raylib.h> #include <raylib.h>
#include <stdint.h> #include <stdint.h>
@@ -21,6 +20,11 @@
fprintf(stderr, "unrecognized instruction\n"); \ fprintf(stderr, "unrecognized instruction\n"); \
exit(1) exit(1)
static const uint8_t keyboard_map[] = {KEY_ONE, KEY_TWO, KEY_THREE, KEY_FOUR,
KEY_FIVE, KEY_SIX, KEY_SEVEN, KEY_EIGHT,
KEY_NINE, KEY_Q, KEY_W, KEY_E,
KEY_R, KEY_T, KEY_Y, KEY_U};
typedef struct CHIP8 { typedef struct CHIP8 {
uint8_t *memory; uint8_t *memory;
uint16_t pc; uint16_t pc;
@@ -330,10 +334,14 @@ void chip8_step(CHIP8 *c) {
case 0xE: { case 0xE: {
switch (kk) { switch (kk) {
case 0x9E: case 0x9E:
printf("TODO: SKP V%x\n", x); if (IsKeyDown(keyboard_map[c->reg[x]])) {
c->pc += 2;
}
break; break;
case 0xA1: case 0xA1:
printf("TODO: SKNP V%x\n", x); if (!IsKeyDown(keyboard_map[c->reg[x]])) {
c->pc += 2;
}
break; break;
default: default:
BAD_INS(); BAD_INS();
@@ -344,9 +352,17 @@ void chip8_step(CHIP8 *c) {
case 0x07: case 0x07:
c->reg[x] = c->delay_timer; c->reg[x] = c->delay_timer;
break; break;
case 0x0A: case 0x0A: {
printf("TODO: LD V%x, K\n", x); bool key_pressed = false;
while (!key_pressed && WindowShouldClose()) {
for (size_t i = 0; i < 16; i++) {
if (IsKeyDown(keyboard_map[i])) {
key_pressed = true;
break; break;
}
}
}
} break;
case 0x15: case 0x15:
c->delay_timer = c->reg[x]; c->delay_timer = c->reg[x];
break; break;