3 lines
4.1 KiB
JavaScript
3 lines
4.1 KiB
JavaScript
import{I as y,q as u,t as d}from"./chunk-ULPRULB6.js";import{J as m,W as x,X as c,Z as p,aa as o}from"./chunk-RXF2JDJ3.js";import"./chunk-WAARL7ET.js";var M=p([[x.START,1,-1],[x.RIGHT,1,-4],[x.LEFT,1,-8],[x.A,1,-16],[x.UP,1,-32],[x.DOWN,1,-64],[x.SELECT,1,-128]]),l=class extends u{constructor(){super();this.cpuFrequency=705562;this.sampleRate=894886;this.numVisibleScanlines=256;this.numTotalScanlines=262;this.cpuCyclesPerLine=336>>3;this.canvasWidth=256;this.defaultROMSize=32768+2048+10240;this.cpu=new d;this.ram=new Uint8Array(28672);this.color_latch=[84,238,107];this.palette=[4278190080,4278190335,4294901760,4294902015,4278255360,4278255615,4294967040,4294967295];this.inputs=new Uint8Array(4);this.keyMap=M;this.handler=c(this.inputs,this.keyMap);this.scrnbase=16384;this.charbase=26624;this.bus={read:o([[0,1023,0,t=>this.ram[t]],[4096,16383,0,t=>this.rom[t-4096]],[16384,20479,0,t=>this.ram[t]],[20736,20991,3,t=>t==3?this.int_latch():this.inputs[t]],[24576,28671,0,t=>this.ram[t]],[32768,65535,0,t=>this.rom[t-32768]]]),write:o([[0,1023,0,(t,e)=>{this.ram[t]=e}],[16384,20479,0,(t,e)=>{this.ram[t]=e}],[20480,20737,0,(t,e)=>{this.ram[t]=e}],[21008,21010,3,(t,e)=>{this.setColorLatch(t,e)}],[24576,28671,0,(t,e)=>{this.ram[t]=e}]])};this.connectCPUMemoryBus(this),this.updatePalette(),this.inputs[0]=234,this.inputs[1]=255}loadROM(t){super.loadROM(t),t.length<32768&&(t.length==11616?(this.rom.set(t.slice(10240,12288),32768),this.rom.set(t.slice(9984,10240),32512),this.rom.set(t.slice(0,10240),2048),this.scrnbase=16384,this.charbase=18432):t.length==14336?(this.rom.set(t.slice(13312,14336),32768),this.rom.set(t.slice(12032,12288),32512),this.scrnbase=16384,this.charbase=18432):console.log("Warning: ROM is too small",t.length));let e=32768;this.sprite_gfx=this.rom.subarray(e,e+32*32)}read(t){return this.bus.read(t)}readConst(t){return t==20739?this.inputs[3]:this.bus.read(t)}write(t,e){this.bus.write(t,e)}int_latch(){let t=this.inputs[3];return t|=this.inputs[1]&128?0:64,this.inputs[3]=128,t}updatePalette(){this.set_1_color(0,0),this.set_1_color(1,7),this.set_1_color(2,0),this.set_1_color(3,6),this.set_1_color(4,4),this.set_1_color(5,3),this.set_1_color(6,2),this.set_1_color(7,1)}set_1_color(t,e){let a=this.color_latch[0]&1<<e?1:0,s=this.color_latch[1]&1<<e?2:0,f=this.color_latch[2]&1<<e?4:0;this.palette[t]=S[a|s|f]}setColorLatch(t,e){this.color_latch[t&3]=e,this.updatePalette()}drawSprite(t,e,a,s){var f=236-t-4,i=244-e-4;if(i+=15,i-=this.scanline,i>=0&&i<16){i=15-i;let n=this.scanline*this.canvasWidth,h=this.sprite_gfx[a+i];for(let r=0;r<8;r++)h&128>>r&&(this.pixels[n+f+r]=this.palette[s]);h=this.sprite_gfx[a+i+16];for(let r=0;r<8;r++)h&128>>r&&(this.pixels[n+f+r+8]=this.palette[s])}}drawSprite1(){let t=this.ram[20480],e=this.ram[20544],a=this.ram[20737]&32?1:0,s=(this.ram[20736]&15)+16*a;this.drawSprite(t,e,s*32,1)}drawSprite2(){let t=this.ram[20608],e=this.ram[20672],a=this.ram[20737]&64?1:0,s=(this.ram[20736]>>4)+16*a;this.drawSprite(t,e,s*32,3)}startScanline(){}drawScanline(){let t=this.scanline,e=t>>3,a=t*this.canvasWidth;for(let s=0;s<256;s++){let f=s>>3,i=this.ram[this.scrnbase+e*32+f],n=4+(i>>6&3),r=this.ram[this.charbase+i*8+(t&7)]&128>>(s&7)?n:0;this.pixels[a+s]=this.palette[r]}this.drawSprite2(),this.drawSprite1()}postFrame(){this.inputs[3]&=127,this.cpu.IRQ()}getVideoParams(){return{width:256,height:256,aspect:6/5}}},S=[4278190080,4278190335,4278255360,4278255615,4294901760,4294902015,4294967040,4294967295];var g=[{id:"minimal.c",name:"Minimal Example",category:"C"}],b=class extends y{newMachine(){return new l}getPresets(){return g}getDefaultExtension(){return".dasm"}readAddress(t){return this.machine.readConst(t)}getMemoryMap(){return{main:[{name:"RAM",start:0,size:1024,type:"ram"},{name:"Sprite I/O",start:20480,size:256,type:"io"},{name:"I/O",start:20736,size:3,type:"io"},{name:"PIA 6821",start:20992,size:15,type:"io"},{name:"Color Latches",start:21008,size:3,type:"io"},{name:"Screen RAM",start:16384,size:1024,type:"ram"},{name:"Character RAM",start:26624,size:2048,type:"ram"},{name:"Audio ROM",start:22528,size:10240,type:"rom"},{name:"Program ROM",start:32768,size:32768,type:"rom"}]}}};m.exidy=b;
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