8bitworkshop/gen/sms-ZZMMAJND.js.map

{
  "version": 3,
  "sources": ["../src/machine/sms.ts", "../src/platform/sms.ts"],
  "sourcesContent": ["\nimport { BaseZ80VDPBasedMachine } from \"./vdp_z80\";\nimport { newAddressDecoder, padBytes, Keys, makeKeycodeMap } from \"../common/emu\";\nimport { hex } from \"../common/util\";\nimport { MasterAudio, SN76489_Audio } from \"../common/audio\";\nimport { SMSVDP, GameGearVDP } from \"../common/video/tms9918a\";\n\n// http://www.smspower.org/Development/Index\n// http://www.smspower.org/uploads/Development/sg1000.txt\n// http://www.smspower.org/uploads/Development/richard.txt\n// http://www.smspower.org/uploads/Development/msvdp-20021112.txt\n// http://www.smspower.org/uploads/Development/SN76489-20030421.txt\n\nvar SG1000_KEYCODE_MAP = makeKeycodeMap([\n  [Keys.UP,    0, 0x1],\n  [Keys.DOWN,  0, 0x2],\n  [Keys.LEFT,  0, 0x4],\n  [Keys.RIGHT, 0, 0x8],\n  [Keys.A,     0, 0x10],\n  [Keys.B,     0, 0x20],\n  [Keys.GP_A,  0, 0x10],\n  [Keys.GP_B,  0, 0x20],\n\n  [Keys.P2_UP,    0, 0x40],\n  [Keys.P2_DOWN,  0, 0x80],\n  [Keys.P2_LEFT,  1, 0x1],\n  [Keys.P2_RIGHT, 1, 0x2],\n  [Keys.P2_A,     1, 0x4],\n  [Keys.P2_B,     1, 0x8],\n  [Keys.VK_BACK_SLASH,    1, 0x10], // reset\n  [Keys.VK_ENTER,    1, 0x80], // start/pause\n]);\n\nexport class SG1000 extends BaseZ80VDPBasedMachine {\n\n  numVisibleScanlines = 240;\n  defaultROMSize = 0xc000;\n  ram = new Uint8Array(0x400);\n  \n  constructor() {\n    super();\n    this.init(this, this.newIOBus(), new SN76489_Audio(new MasterAudio()));\n  }\n  \n  getKeyboardMap() { return SG1000_KEYCODE_MAP; }\n\n  vdpInterrupt() {\n    this.probe.logInterrupt(0xff);\n    return this.cpu.interrupt(0xff); // RST 0x38\n  }\n  \n   read = newAddressDecoder([\n     [0xc000, 0xffff,  0x3ff, (a) => { return this.ram[a]; }],\n     [0x0000, 0xbfff, 0xffff, (a) => { return this.rom && this.rom[a]; }],\n   ]);\n   write = newAddressDecoder([\n     [0xc000, 0xffff,  0x3ff, (a,v) => { this.ram[a] = v; }],\n   ]);\n  \n  getVCounter() : number { return 0; }\n  getHCounter() : number { return 0; }\n  setMemoryControl(v:number) { }\n  setIOPortControl(v:number) { }\n\n  readIO(addr:number) {\n    switch (addr & 0xc1) {\n      case 0x40: return this.getVCounter();\n      case 0x41: return this.getHCounter();\n      case 0x80: return this.vdp.readData();\n      case 0x81: return this.vdp.readStatus();\n      case 0xc0: return this.inputs[0] ^ 0xff;\n      case 0xc1: return this.inputs[1] ^ 0xff;\n    }\n    return 0;\n  }\n\n  writeIO(addr:number, val:number) {\n    switch (addr & 0xc1) {\n      case 0x00: return this.setMemoryControl(val);\n      case 0x01: return this.setIOPortControl(val);\n      case 0x40:\n      case 0x41: return this.psg.setData(val);\n      case 0x80: return this.vdp.writeData(val);\n      case 0x81: return this.vdp.writeAddress(val);\n    }\n  }\n\n  newIOBus() {\n    return {\n      read: (addr:number) => {\n        addr &= 0xff;\n        //console.log('IO read', hex(addr,4));\n        return this.readIO(addr);\n      },\n      write: (addr:number, val:number) => {\n        addr &= 0xff;\n        val &= 0xff;\n        //console.log('IO write', hex(addr,4), hex(val,2));\n        this.writeIO(addr, val);\n      }\n    };\n  }\n  \n}\n\n///\n\nexport class SMS extends SG1000 {\n\n  cartram = new Uint8Array(0);\n  pagingRegisters = new Uint8Array(4);\n  romPageMask : number;\n  latchedHCounter = 0;\n  ioControlFlags = 0;\n  // TODO: hide bottom scanlines\n  ram = new Uint8Array(0x2000);\n  \n  newVDP(frameData, cru, flicker) {\n    return new SMSVDP(frameData, cru, flicker);\n  }\n\n  reset() {\n    super.reset();\n    this.pagingRegisters.set([0,0,1,2]);\n  }\n\n  getVCounter() {\n    var y = this.scanline;\n    return (y <= 0xda) ? (y) : (y - 6);\n  }\n  getHCounter() {\n    return this.latchedHCounter;\n  }\n  computeHCounter() {\n    return 0;\n    /*\n    var t0 = this.startLineTstates;\n    var t1 = this.cpu.getTstates();\n    return (t1-t0) & 0xff; // TODO\n    */\n  }\n  setIOPortControl(v:number) {\n    if ((v ^ this.ioControlFlags) & 0xa0) { // either joystick TH pin\n      this.latchedHCounter = this.computeHCounter();\n      //console.log(\"H:\"+hex(this.la
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