Turingon/8080-Emulator
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I/O + Interrupt DEBUG done :)

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Luxdragon 2024-01-14 21:19:34 +01:00
parent a0e7a72ca6
commit 8da7777764
1 changed files with 11 additions and 6 deletions
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17
emulator_shell.c
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@ -7,6 +7,8 @@
// gcc emulator_shell.c `pkg-config --cflags --libs gtk+-3.0` -o emulator
#define FREQUENCY 500
void keyDown(uint8_t key);
void keyUp(uint8_t key);
//===== GTK SETUP =====
@ -74,8 +76,6 @@ static gboolean on_key_release(GtkWidget *widget, GdkEventKey *event, gpointer u
keyUp(4);
break;
}
}
return FALSE;
}
@ -625,8 +625,7 @@ int emulate8080(State8080* state) {
uint32_t hl = (state->h << 8) | state->l;
uint32_t result = hl + hl;
state->h = (result & 0xff00) >> 8;
state->l = result & 0xff;0[*opcode];
}
state->l = result & 0xff;
state->cc.cy = ((result & 0xffff0000) != 0);
}
break;
@ -810,9 +809,11 @@ int emulate8080(State8080* state) {
state->sp += 2;
break;
case 0xd3: // OUT byte
{
uint8_t port = opcode[1];
machineOut(state, port, 0x00); // PROBLEM: We need to pass a value to machineOUT
state->pc++;
}
break;
case 0xd5: // PUSH D
state->memory[state->sp-1] = state->d;
@ -820,9 +821,11 @@ int emulate8080(State8080* state) {
state->sp -= 2;
break;
case 0xdb: // IN byte
{
uint8_t port = opcode[1];
state->a = machineIn(state, port);
state->pc++;
}
break;
case 0xe1: // POP H
state->l = state->memory[state->sp];
@ -1011,6 +1014,7 @@ int main (int argc, char *argv[]) {
read_Space_Invaders_ROM(state, "ROM/invaders.g", 0x800);
read_Space_Invaders_ROM(state, "ROM/invaders.f", 0x1000);
read_Space_Invaders_ROM(state, "ROM/invaders.e", 0x1800);
gtk_main();
@ -1025,8 +1029,9 @@ int main (int argc, char *argv[]) {
i++;
simulateNanoseconds(FREQUENCY * counter); // EMULATION OF THE PROCESSOR ŠPEED
if ((total_count > 10000000) && (state->int_enable)) //1/60 second has elapsed
if ((total_count > 16000000) && (state->int_enable)) //1/60 second has elapsed
{
// draw_screen(state);
if (which_interrupt == 2) {
generateInterrupt(state, 2); //interrupt 2
total_count = 0;
@ -1038,7 +1043,7 @@ int main (int argc, char *argv[]) {
}
}
}
gtk_main();
free(state->memory);
free(state);
return 0;