memset --> asm

This commit is contained in:
Frater 2026-05-15 15:28:02 +02:00
commit 80fca8e0fb

View file

@ -39,17 +39,17 @@ void fast_copy_dwords(void *dest, void *src, int count);
parm [edi] [esi] [ecx] modify [edi esi ecx];
void clear_buffers(uint8_t color) {
//memset(backbuffer, color, SCREEN_PIXELS);
// memset(backbuffer, color, SCREEN_PIXELS);
uint32_t c32 = color | (color << 8) | (color << 16) | (color << 24);
fast_clear_dwords(backbuffer, c32, SCREEN_PIXELS / 4);
fast_clear_dwords(backbuffer, c32, SCREEN_PIXELS >> 2);
//memset(zbuffer, 0xFF, SCREEN_PIXELS * sizeof(uint16_t));
fast_clear_dwords(zbuffer, 0xFFFFFFFFUL, SCREEN_PIXELS / 2); /* 2 pixels (16 bits) par itération 32 bits */
fast_clear_dwords(zbuffer, 0xFFFFFFFFUL, SCREEN_PIXELS >> 1); /* 2 pixels (16 bits) par itération 32 bits */
}
void clear_zbuffer(void) {
//memset(zbuffer, 0xFF, SCREEN_PIXELS * sizeof(uint16_t));
fast_clear_dwords(zbuffer, 0xFFFFFFFFUL, SCREEN_PIXELS / 2);
fast_clear_dwords(zbuffer, 0xFFFFFFFFUL, SCREEN_PIXELS >> 1);
}
void blit_image(Image *img, int x, int y) {