case MM_DATA ... MM_DATA + 3:
/* indexed access to regs or memory */
if (s->regs.mm_index & BIT(31)) {
- if (s->regs.mm_index <= s->vga.vram_size - size) {
- int i = size - 1;
- while (i >= 0) {
- val <<= 8;
- val |= s->vga.vram_ptr[s->regs.mm_index + i--];
- }
+ uint32_t idx = s->regs.mm_index & ~BIT(31);
+ if (idx <= s->vga.vram_size - size) {
+ val = ldn_le_p(s->vga.vram_ptr + idx, size);
}
} else {
val = ati_mm_read(s, s->regs.mm_index + addr - MM_DATA, size);
case MM_DATA ... MM_DATA + 3:
/* indexed access to regs or memory */
if (s->regs.mm_index & BIT(31)) {
- if (s->regs.mm_index <= s->vga.vram_size - size) {
- int i = 0;
- while (i < size) {
- s->vga.vram_ptr[s->regs.mm_index + i] = data & 0xff;
- data >>= 8;
- }
+ uint32_t idx = s->regs.mm_index & ~BIT(31);
+ if (idx <= s->vga.vram_size - size) {
+ stn_le_p(s->vga.vram_ptr + idx, size, data);
}
} else {
ati_mm_write(s, s->regs.mm_index + addr - MM_DATA, data, size);