8bitworkshop/gen/c64-4PGUJH5R.js.map

{
  "version": 3,
  "sources": ["../src/machine/c64.ts", "../src/platform/c64.ts"],
  "sourcesContent": ["\nimport { AcceptsPaddleInput, Probeable } from \"../common/devices\";\nimport { dumpRAM, KeyFlags } from \"../common/emu\";\nimport { clamp, hex, lpad } from \"../common/util\";\n\n// https://www.c64-wiki.com/wiki/C64\n// http://www.zimmers.net/cbmpics/cbm/c64/vic-ii.txt\n// http://www.zimmers.net/cbmpics/cbm/c64/c64prg.txt\n// http://sta.c64.org/cbm64mem.html\n// http://hitmen.c02.at/temp/palstuff/\n\n//// WASM Machine\n\nimport { Machine } from \"../common/baseplatform\";\nimport { TrapCondition } from \"../common/devices\";\nimport { BaseWASMMachine } from \"../common/wasmplatform\";\n\nexport class C64_WASMMachine extends BaseWASMMachine \n  implements Machine, Probeable, AcceptsPaddleInput {\n\n  numTotalScanlines = 312;\n  cpuCyclesPerLine = 63;\n\n  prgstart : number;\n  joymask0 = 0;\n  joymask1 = 0;\n  lightpen_x = 0;\n  lightpen_y = 0;\n\n  loadBIOS(srcArray: Uint8Array) {\n    var patch1ofs = 0xea24 - 0xe000 + 0x3000;\n    if (srcArray[patch1ofs] == 0xc4) srcArray[patch1ofs] = 0x60; // cursor move, KIL -> RTS\n    super.loadBIOS(srcArray);\n  }\n  reset() {\n    super.reset();\n    // clear keyboard\n    for (var ch=0; ch<128; ch++) {\n      this.exports.machine_key_up(this.sys, ch);\n    }\n    // load rom\n    if (this.romptr && this.romlen) {\n      this.exports.machine_load_rom(this.sys, this.romptr, this.romlen);\n      this.prgstart = this.romarr[0] + (this.romarr[1]<<8); // get load address\n      // look for BASIC program start\n      if (this.prgstart == 0x801) {\n          // decode SYS address from decimal?\n          if (this.romarr[6] == 0x9e) {\n          var addr = 0;\n          for (var i=0; i<5; i++) {\n            var ch = this.romarr[7+i];\n            if (ch == 0x9b || ch == 0) break;\n            addr = addr * 10 + (ch & 0xf);\n          }\n          this.prgstart = addr;\n          console.log(\"SYS\", addr, hex(addr));\n        } else {\n          this.prgstart = this.romarr[2] + (this.romarr[3]<<8) + 2; // point to after BASIC program\n          console.log(\"RUN\", this.prgstart, hex(this.prgstart));\n        }\n      }\n      // is program loaded into RAM?\n      if (this.prgstart < 0x8000) {\n        // advance BIOS a few frames\n        this.exports.machine_exec(this.sys, 250000);\n        // type in command (SYS 2061)\n        var cmd = \"\\rSYS \"+this.prgstart;\n        for (var i=0; i<cmd.length; i++) {\n          var key = cmd.charCodeAt(i);\n          this.exports.machine_exec(this.sys, 30000);\n          this.exports.machine_key_down(this.sys, key);\n          this.exports.machine_exec(this.sys, 30000);\n          this.exports.machine_key_up(this.sys, key);\n          this.exports.machine_exec(this.sys, 1); // chips/kbd.c has a \"sticky counter\"\n        }\n        // advance clock until program starts\n        this.exports.machine_key_down(this.sys, 13);\n        this.exports.machine_exec(this.sys, 1); // chips/kbd.c has a \"sticky counter\"\n        for (var i=0; i<100000 && this.getPC() != this.prgstart; i++) {\n          this.exports.machine_tick(this.sys);\n        }\n      } else {\n        // get out of reset\n        this.exports.machine_exec(this.sys, 100);\n        // wait until cartridge start\n        // TODO: detect ROM cartridge\n        var warmstart = this.romarr[0x4] + this.romarr[0x5]*256;\n        for (var i=0; i<150000 && this.getPC() != warmstart; i++) {\n          this.exports.machine_tick(this.sys);\n        }\n      }\n      // TODO: shouldn't we return here @ start of frame?\n      // and stop probing\n    }\n  }\n  advanceFrame(trap: TrapCondition) : number {\n    // TODO: does this sync with VSYNC?\n    // TODO: ticks, not msec (machine_tick() has different rate then machine_exec())\n    var scanline = this.getRasterY();\n    var clocks = Math.floor((this.numTotalScanlines - scanline) * 19656 / this.numTotalScanlines);\n    var probing = this.probe != null;\n    if (probing) this.exports.machine_reset_probe_buffer();\n    clocks = super.advanceFrameClock(trap, clocks);\n    if (probing) this.copyProbeData();\n    //console.l
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