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- [FIX] Un poc mes de neteja

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- [NEW] Implementat el glitch "STAT IRQ Blocking"
- [NEW] Afegit lagueirtofile
This commit is contained in:
Raimon Zamora
2026-06-03 11:33:17 +02:00
parent 15a24b2b84
commit 784150fe88
4 changed files with 28 additions and 14 deletions
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.gitignore
+1
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@@ -1 +1,2 @@
gb gb
build/*
gbscreen.cpp
+20 -13
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@@ -69,6 +69,8 @@ namespace gbscreen
#define WY (*_WY) #define WY (*_WY)
#define WX (*_WX) #define WX (*_WX)
#define IF 0xff0f
bool last_interrupt_lcd_state = false;
bool eventHandler(SDL_Event *e) bool eventHandler(SDL_Event *e)
{ {
@@ -315,7 +317,7 @@ namespace gbscreen
void refresh(const uint32_t dt, const bool full) void refresh(const uint32_t dt, const bool full)
{ {
if ((LCDC&0x80)==0) return; if ((LCDC&0x80)==0) return;
for (int i=0;i<dt;++i) for (int i=0;i<dt;++i)
{ {
// Açò va volcant els pixels del line_buffer en pantalla // Açò va volcant els pixels del line_buffer en pantalla
@@ -328,7 +330,8 @@ namespace gbscreen
} }
// gestió de en quin dot i linea estem, i tot el que ha de passar // gestió de en quin dot i linea estem, i tot el que ha de passar
uint8_t interrupts = 0x00; //uint8_t interrupts = 0x00;
bool current_interrupt_lcd_state = false;
dots_in_scanline++; dots_in_scanline++;
if ( (dots_in_scanline==80) && (LY<144) ) if ( (dots_in_scanline==80) && (LY<144) )
{ {
@@ -337,7 +340,7 @@ namespace gbscreen
else if ( (dots_in_scanline==252) && (LY<144) ) else if ( (dots_in_scanline==252) && (LY<144) )
{ {
STAT = (STAT & 0xFC); // Set mode 0 STAT = (STAT & 0xFC); // Set mode 0
if (STAT&0x08) interrupts |= INTERRUPT_LCD; if (STAT&0x08) current_interrupt_lcd_state = true; // interrupts |= INTERRUPT_LCD;
} }
else if (dots_in_scanline==456) else if (dots_in_scanline==456)
{ {
@@ -346,16 +349,18 @@ namespace gbscreen
if (LY==154) LY=0; if (LY==154) LY=0;
if (LY==144) if (LY==144)
{ {
// Set vblank interrupt
mem::writeMem(IF, mem::readMem(IF) | INTERRUPT_VBLANK);
STAT = (STAT & 0xFC) | 0x01; // Set mode 1 STAT = (STAT & 0xFC) | 0x01; // Set mode 1
interrupts |= INTERRUPT_VBLANK; //interrupts |= INTERRUPT_VBLANK;
if (STAT&0x10) interrupts |= INTERRUPT_LCD; if (STAT&0x10) current_interrupt_lcd_state = true; //interrupts |= INTERRUPT_LCD;
} }
else else
{ {
if (LY<144) if (LY<144)
{ {
STAT = (STAT & 0xFC) | 0x02; // Set mode 2 STAT = (STAT & 0xFC) | 0x02; // Set mode 2
if (STAT&0x20) interrupts |= INTERRUPT_LCD; if (STAT&0x20) current_interrupt_lcd_state = true; // interrupts |= INTERRUPT_LCD;
fill_line_buffer_bkg(); fill_line_buffer_bkg();
fill_line_buffer_win(); fill_line_buffer_win();
fill_line_buffer_obj(); fill_line_buffer_obj();
@@ -364,7 +369,7 @@ namespace gbscreen
if (LY==LYC) if (LY==LYC)
{ {
STAT = (STAT & 0xFB) | 0x04; STAT = (STAT & 0xFB) | 0x04;
if (STAT&0x40) interrupts |= INTERRUPT_LCD; if (STAT&0x40) current_interrupt_lcd_state = true; // interrupts |= INTERRUPT_LCD;
} }
else else
{ {
@@ -372,10 +377,12 @@ namespace gbscreen
} }
} }
if (interrupts) if (!last_interrupt_lcd_state && current_interrupt_lcd_state)
{ {
sm83::interrupt(interrupts); mem::writeMem(IF, mem::readMem(IF) | INTERRUPT_LCD);
//sm83::interrupt(interrupts);
} }
last_interrupt_lcd_state = current_interrupt_lcd_state;
t_screen++; t_screen++;
if (t_screen>=t_states_total) if (t_screen>=t_states_total)
@@ -504,8 +511,8 @@ namespace gbscreen
return full_refresh; return full_refresh;
} }
SDL_Renderer *getrenderer() //SDL_Renderer *getrenderer()
{ //{
return ren; // return ren;
} //}
} }
gbscreen.h
+1 -1
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@@ -21,5 +21,5 @@ namespace gbscreen
void toggleFullRefresh(); void toggleFullRefresh();
const bool getFullRefresh(); const bool getFullRefresh();
SDL_Renderer *getrenderer(); //SDL_Renderer *getrenderer();
} }
lagueirtofile
+6
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@@ -0,0 +1,6 @@
[linux_debug] default
cppflags = -g
libs = -lSDL2
executable = gb
sourcepath = .
buildpath = build