writecontroller

ppu.c

	if (cpu.cycles >= 30000) { // "about" 30000 cycles
		ppu.controller = val;

		ppu.vram_addr_inc = ((val >> 2) & 0x1) ? 1: 32;
		ppu.sprite_pattern_addr = ((val >> 3) & 0x1) * 0x1000;
		ppu.bg_pattern_addr = ((val >> 4) & 0x1) * 0x1000;
		ppu.sprite_height = ((val >> 5) & 0x1) ? 8 : 16;
		ppu.nmi_on_vblank = (val >> 7) & 0x1;

		// Change scroll latch to match base nametable address
		ppu.vram_latch = (ppu.vram_latch & 0xF3FF) | ((WORD)(val & 0x3) << 10);
		ppu.first_write = 1;
	}