Raimon @ quifisraimon
c3503a7a4b
- [FIX] arreglat el càlcul de adreces en opcodes que usen zero page - [FIX] Arreglat el càlcul de flags en opcodes incrementadors, decrementadors i transfers - [FIX] Si ja havem identificat una adreça de memòria com a instrucció, usar eixe tag al desensamblar cap enrere - [NEW] Càrrega de simbols al principi
93 lines
1.9 KiB
C++
93 lines
1.9 KiB
C++
#include "atari2600.h"
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#include "6502m.h"
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#include "mem.h"
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#include "tia.h"
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#include "pia.h"
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#include "display.h"
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#include "speaker.h"
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//#include "keyboard.h"
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#include "6502debugger.h"
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#define NTSC_CLOCK 1193182.0f
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#define PAL_CLOCK 1182298.0f
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#define SECAM_CLOCK 1187500.0f
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#define PAL_M_CLOCK 1191870.0f
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namespace atari2600
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{
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static bool should_exit = false;
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static bool paused = false;
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void init()
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{
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paused = false;
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m6502::reset();
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mem::reset();
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tia::reset();
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pia::reset();
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display::init();
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speaker::init(NTSC_CLOCK);
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speaker::register_source(tia::audio::get_sample0);
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speaker::register_source(tia::audio::get_sample1);
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}
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void quit()
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{
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should_exit = true;
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}
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void step()
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{
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uint8_t t_states=0;
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// if (z80debugger::isbreak(pc, 9)) {
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// msx::pause();
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// z80debugger::show();
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// return;
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// } else {
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uint8_t stall_counter = 100;
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bool instruction_done = false;
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while (!instruction_done) {
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if (!tia::is_rdy_low()) {
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instruction_done = m6502::tick();
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} else {
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stall_counter--;
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if (stall_counter==0) instruction_done = true;
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}
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tia::tick();
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tia::tick();
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tia::tick();
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pia::tick();
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t_states++;
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}
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uint16_t pc = m6502::getPC();
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m6502debugger::onInstructionExecute(pc);
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speaker::update(t_states);
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// }
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}
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void pause()
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{
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display::setTitle(" (paused)");
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paused = true;
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display::redraw();
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}
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void resume()
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{
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display::setTitle("");
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paused = false;
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}
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bool is_paused()
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{
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return paused;
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}
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bool is_quitting()
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{
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return should_exit;
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}
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}
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