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Impl Joypad

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This commit is contained in:
Andrew Glaze
2024-08-21 18:35:32 -04:00
parent bd21449256
commit 59e7559d77
4 changed files with 73 additions and 137 deletions
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11
Sources/Data/Bus.swift
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@@ -1,7 +1,8 @@
class Bus {
var cpuVram: [UInt8] = .init(repeating: 0, count: 2048)
var prgRom: [UInt8]
var ppu: NesPPU
let ppu: NesPPU
let joypad1: Joypad
var cycles: Int = 0
var gameloopCallback: (NesPPU) -> ()
@@ -12,10 +13,12 @@ class Bus {
fileprivate let ROM_ADDRESS_START: UInt16 = 0x8000
fileprivate let ROM_ADDRESS_END: UInt16 = 0xFFFF
init(_ rom: Rom, gameloopCallback: @escaping (NesPPU) -> ()) {
init(rom: Rom, joypad1: Joypad, gameloopCallback: @escaping (NesPPU) -> ()) {
ppu = NesPPU(rom.character, rom.screenMirror)
self.prgRom = rom.program
self.gameloopCallback = gameloopCallback
self.joypad1 = joypad1
}
func tick(_ cycles: UInt8) {
@@ -51,7 +54,7 @@ extension Bus: Memory {
case 0x4000...0x4015:
return 0 // Ignore APU
case 0x4016:
return 0 // Ignore Joy 1
return joypad1.read()
case 0x4017:
return 0 // Ignore Joy 2
case 0x2008...PPU_REGISTERS_MIRRORS_END:
@@ -92,7 +95,7 @@ extension Bus: Memory {
case 0x4000...0x4013, 0x4015:
return // Ignore APU
case 0x4016:
return // ignore Joy 1
joypad1.write(data)
case 0x4017:
return // Ignore Joy 2
case 0x4014: