mirror/psxrecomp
1
0
Fork 0
mirror of https://github.com/RetroPortingToolKit/psxrecomp synced 2026-10-27 18:52:11 -04:00
Code Issues Packages Projects Releases Wiki Activity

mmx6 framework: CD/DMA/MDEC + codegen fixes (Tomba builds+plays, MMX6 boots to intro)

Browse Source 
Framework work on codex/mmx6-support that makes Tomba build and play
(title screen, 0 dispatch misses) and MMX6 boot through BIOS to its
intro. Touches recompiler codegen (code_generator, function_analysis)
and runtime CD-ROM/DMA/MDEC/GPU/SIO timing (cdrom, dma, mdec, gpu,
psx_cycles, traps, fntrace, debug_server) + headers + runtime.cmake.

Milestone snapshot for collapsing onto master. Build dir excluded.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Matthew Stanley
2026-06-04 12:06:02 -07:00
parent 08fa3765ba
commit ec4306fbb3
20 changed files with 1289 additions and 200 deletions
Download Patch File Download Diff File Expand all files Collapse all files
runtime/src/main.cpp
+16 -15
View File
@@ -496,14 +496,6 @@ static void sdl_audio_pump(void) {
(uint32_t)frames * bytes_per_frame);
}
/* Convert PS1 16-bit color (1-5-5-5) to ARGB8888 */
static inline uint32_t psx16_to_argb(uint16_t c) {
uint32_t r = (c & 0x1F) << 3;
uint32_t g = ((c >> 5) & 0x1F) << 3;
uint32_t b = ((c >> 10) & 0x1F) << 3;
return 0xFF000000u | (r << 16) | (g << 8) | b;
}
/* PS1 digital pad button bits (active-low: 0=pressed, 1=released).
* Bit 0 = SELECT, Bit 3 = START, Bit 4 = UP, Bit 5 = RIGHT,
* Bit 6 = DOWN, Bit 7 = LEFT, Bit 8 = L2, Bit 9 = R2,
@@ -948,6 +940,13 @@ static void sdl_vblank_present(void) {
sdl_audio_pump();
#endif
/* TCP turbo is for automated validation and trace capture. It keeps the
* simulation advancing and the debug server polling, but removes frontend
* presentation and wall-clock pacing. */
#ifndef PSX_NO_DEBUG_TOOLS
if (debug_server_turbo_enabled()) return;
#endif
/* Turbo mode: while TAB is held, skip both VRAM->ARGB conversion and
* SDL_RenderPresent. The recompiled BIOS still advances simulated
* cycles every vblank, so the BIOS proceeds at whatever rate the host
@@ -1004,23 +1003,25 @@ static void sdl_vblank_present(void) {
/* ---- Display from our VRAM ---- */
uint32_t w = 0, h = 0;
{
static bool disabled_frame_presented = false;
GpuDisplayInfo di;
gpu_get_display_info(&di);
if (di.disabled || di.width == 0 || di.height == 0) {
#ifndef PSX_SDL_NO_RENDER
SDL_SetRenderDrawColor(sdl_renderer, 0, 0, 0, 255);
SDL_RenderClear(sdl_renderer);
SDL_RenderPresent(sdl_renderer);
if (!disabled_frame_presented) {
disabled_frame_presented = true;
SDL_SetRenderDrawColor(sdl_renderer, 0, 0, 0, 255);
SDL_RenderClear(sdl_renderer);
SDL_RenderPresent(sdl_renderer);
}
#endif
return;
}
const uint16_t* vram = gpu_get_vram();
disabled_frame_presented = false;
w = di.width; h = di.height;
for (uint32_t y = 0; y < h; y++) {
uint32_t vy = (di.display_y + y) & 511;
for (uint32_t x = 0; x < w; x++) {
uint32_t vx = (di.display_x + x) & 1023;
sdl_pixel_buf[y * w + x] = psx16_to_argb(vram[vy * 1024 + vx]);
sdl_pixel_buf[y * w + x] = gpu_display_pixel_argb(&di, x, y);
}
}
}