🎃

Jacob Mischka jacobmischka

🎃

uwu

jacobmischka / cpu.c

Created January 31, 2015 23:04

stack

	/* --- Stack operations --- */
	static void pushb(BYTE val) {
	Memory_WriteByte((STACK_ADDR \| cpu.SP--), val);
	}

	static void pushw(WORD val) {
	BYTE tmp = (BYTE)(val & 0xFF);
	Memory_WriteByte((STACK_ADDR \| cpu.SP--), tmp);
	tmp = (BYTE)((val & 0xFF00) >> 8);
	Memory_WriteByte((STACK_ADDR \| cpu.SP--), tmp);

jacobmischka / disassembler.i

Created January 31, 2015 23:10

disassemble2

	void disassemble2() {
	printf("$%04X %02X \| A:%02X X:%02X Y:%02X SP:%02X \| C:%d Z:%d I:%d D:%d V:%d B:%d N:%d \| S: %02X %02X\n",
	cpu.operaddr, cpu.operand, cpu.A, cpu.X, cpu.Y, cpu.SP,
	GET_FLAG(FLAG_C) != 0, GET_FLAG(FLAG_Z) != 0, GET_FLAG(FLAG_I) != 0, GET_FLAG(FLAG_D) != 0,
	GET_FLAG(FLAG_V) != 0, GET_FLAG(FLAG_B) != 0, GET_FLAG(FLAG_N) != 0, Memory_ReadByte(STACK_ADDR \| (cpu.SP+1)), Memory_ReadByte(STACK_ADDR \| (cpu.SP+2)));
	}

jacobmischka / diff.py

Created February 1, 2015 00:09

	test = open("test.log")
	nestest = open("nestest.log")
	lineCount = 0

	for testLine, nestestLine in zip(test, nestest):
	if testLine[1:5] != nestestLine[:4]:
	print(testLine)

jacobmischka / addressing.i

Created February 1, 2015 03:19

IND

	/* Indirect */
	static void IND() {
	cpu.indoperaddr = Memory_ReadWord(cpu.PC);
	if((cpu.indoperaddr & 0x00FF) == 0x00FF){
	cpu.operaddr = (WORD)Memory_ReadByte(cpu.indoperaddr) \| ((WORD)Memory_ReadByte(cpu.indoperaddr & 0xFF00) << 8);
	}
	else
	cpu.operaddr = Memory_ReadWord(cpu.indoperaddr);
	cpu.PC += 2;
	/* TODO: Implement bug */

jacobmischka / instructions.i

Created February 2, 2015 00:24

brk

jacobmischka / cpu.c

Created February 2, 2015 18:11

interrupt

jacobmischka / ppu.c

Created February 8, 2015 05:04

writecontroller

	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

jacobmischka / oauth.qml

Created March 5, 2015 02:40

jacobmischka / game.lua

Created March 18, 2015 09:05

idk!

	n
	dx = -dist*math.cos(-self.cam.rot)
	dy = -dist*math.sin(-self.cam.rot)
	if self.world:isLand(self.player.x+dx, self.player.y+dy) then
	self.cam:move(dx, dy)
	self.player:move(dx, dy, "left")
	end
	elseif key == "s" then
	dx = dist*math.sin(self.cam.rot)
	dy = dist*math.cos(self.cam.rot)

jacobmischka / cake

Created March 26, 2015 06:02

cake

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