88 lines
2.6 KiB
TypeScript
88 lines
2.6 KiB
TypeScript
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import { BaseDebugPlatform, CpuState, EmuState, Platform, DisasmLine, Debuggable, Machine, BaseMachinePlatform } from "../common/baseplatform";
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import { AnimationTimer, EmuHalt, padBytes, PLATFORMS, RasterVideo } from "../common/emu";
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import { hex, lpad, loadScript } from "../common/util";
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import { ARM32CPU } from "../common/cpu/ARM";
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import { ARM32Machine } from "../machine/arm32";
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declare var uc, cs : any; // Unicorn module
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const ARM32_PRESETS = [
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{ id: 'vidfill.vasm', name: 'Video Memory Fill' },
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];
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const SCREEN_WIDTH = 160;
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const SCREEN_HEIGHT = 128;
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const ROM_START_ADDR = 0x0;
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const HIROM_START_ADDR = 0xff800000;
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const ROM_SIZE = 512*1024;
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const RAM_START_ADDR = 0x20000000;
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const RAM_SIZE = 512*1024;
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const CLOCKS_PER_FRAME = 10000;
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interface ARM32State extends EmuState {
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r: Uint32Array; // registers
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}
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export abstract class BaseARMMachinePlatform<T extends Machine> extends BaseMachinePlatform<T> {
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//getOpcodeMetadata = getOpcodeMetadata_z80;
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getToolForFilename(fn: string) {
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if (fn.endsWith('.vasm')) return "vasmarm";
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else if (fn.endsWith('.armips')) return "armips";
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else return "vasmarm";
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}
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getPresets() { return ARM32_PRESETS; }
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getDefaultExtension() { return ".vasm"; };
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}
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class ARM32Platform extends BaseARMMachinePlatform<ARM32Machine> implements Platform {
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capstone_arm : any;
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capstone_thumb : any;
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async start() {
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super.start();
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console.log("Loading Capstone");
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await loadScript('./lib/capstone-arm.min.js');
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this.capstone_arm = new cs.Capstone(cs.ARCH_ARM, cs.MODE_ARM);
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this.capstone_thumb = new cs.Capstone(cs.ARCH_ARM, cs.MODE_THUMB);
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}
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newMachine() { return new ARM32Machine(); }
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readAddress(a) { return this.machine.read(a); }
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getMemoryMap = function() { return { main:[
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{name:'ROM',start:0x0000000,size:0x80000,type:'rom'},
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{name:'RAM',start:0x2000000,size:0x80000,type:'ram'},
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{name:'I/O',start:0x4000000,size:0x100,type:'io'},
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] } };
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disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {
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var is_thumb = this.machine.cpu.isThumb();
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var capstone = is_thumb ? this.capstone_thumb : this.capstone_arm;
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var buf = [];
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for (var i=0; i<4; i++) {
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buf[i] = read(pc+i);
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}
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var insns = capstone.disasm(buf, pc, 4);
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var i0 = insns && insns[0];
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if (i0) {
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return {
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nbytes: i0.size,
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line: i0.mnemonic + " " + i0.op_str,
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isaddr: i0.address > 0
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};
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} else {
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return {
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nbytes: 4,
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line: "???",
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isaddr: false
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};
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}
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}
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}
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////
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PLATFORMS['arm32'] = ARM32Platform;
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