3 lines
2.5 KiB
JavaScript
3 lines
2.5 KiB
JavaScript
import{J as h,c as f,q as m}from"./chunk-ULPRULB6.js";import{J as n,W as t,X as o,Z as c,aa as i}from"./chunk-RXF2JDJ3.js";import"./chunk-WAARL7ET.js";var l=c([[t.A,1,16],[t.LEFT,1,32],[t.RIGHT,1,64],[t.P2_A,2,16],[t.P2_LEFT,2,32],[t.P2_RIGHT,2,64],[t.SELECT,1,1],[t.START,1,4],[t.P2_START,1,2]]),u=256,w=4293848814,b=4278190080,a=class extends m{constructor(){super();this.cpuFrequency=1996800;this.canvasWidth=256;this.numTotalScanlines=262;this.numVisibleScanlines=224;this.cpuCyclesPerLine=Math.floor(1996800/(262*60));this.defaultROMSize=8192;this.rotate=-90;this.sampleRate=1;this.bitshift_offset=0;this.bitshift_register=0;this.cpu=new f;this.ram=new Uint8Array(8192);this.read=i([[0,8191,8191,e=>this.rom?this.rom[e]:0],[8192,16383,8191,e=>this.ram[e]]]);this.write=i([[8192,9215,1023,(e,s)=>{this.ram[e]=s}],[9216,16383,8191,(e,s)=>{this.ram[e]=s;for(var d=e-1024<<3,r=0;r<8;r++)this.pixels[d+r]=s&1<<r?w:b}]]);this.connectCPUMemoryBus(this),this.connectCPUIOBus(this.newIOBus()),this.handler=o(this.inputs,l)}newIOBus(){return{read:e=>{switch(e&=3,e){case 0:case 1:case 2:return this.inputs[e];case 3:return this.bitshift_register>>8-this.bitshift_offset&255}return 0},write:(e,s)=>{switch(e&=7,s&=255,e){case 2:this.bitshift_offset=s&7;break;case 3:case 5:break;case 4:this.bitshift_register=this.bitshift_register>>8|s<<8;break;case 6:this.watchdog_counter=u;break}}}}startScanline(){}drawScanline(){this.scanline==95?this.interrupt(207):this.scanline==223&&this.interrupt(215)}interrupt(e){this.probe.logInterrupt(e),this.cpu.interrupt(e)}advanceFrame(e){return this.watchdog_counter--<=0&&(console.log("WATCHDOG FIRED"),this.reset()),super.advanceFrame(e)}loadState(e){super.loadState(e),this.bitshift_register=e.bsr,this.bitshift_offset=e.bso,this.watchdog_counter=e.wdc}saveState(){var e=super.saveState();return e.bsr=this.bitshift_register,e.bso=this.bitshift_offset,e.wdc=this.watchdog_counter,e}reset(){super.reset(),this.watchdog_counter=u}};var _=[{id:"gfxtest.c",name:"Graphics Test"},{id:"shifter.c",name:"Sprite w/ Bit Shifter"},{id:"game2.c",name:"Cosmic Impalas"}],p=class extends h{constructor(){super(...arguments);this.getMemoryMap=function(){return{main:[{name:"Frame Buffer",start:9216,size:7168,type:"ram"}]}}}newMachine(){return new a}getPresets(){return _}getDefaultExtension(){return".c"}readAddress(e){return this.machine.read(e)}showHelp(){return"https://8bitworkshop.com/docs/platforms/arcade/index.html#midway-8080"}};n.mw8080bw=p;
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