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mirror of https://github.com/sehugg/8bitworkshop.git synced 2024-11-25 18:33:11 +00:00

verilog: wasm, HDLModuleRunner interface

This commit is contained in:
Steven Hugg 2021-07-01 13:18:20 -05:00
parent 9bb79c318f
commit 4e97cd2eef
5 changed files with 530 additions and 216 deletions

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@ -1,6 +1,6 @@
import { byteArrayToString } from "../util";
import { HDLBinop, HDLBlock, HDLConstant, HDLDataType, HDLExpr, HDLExtendop, HDLFuncCall, HDLModuleDef, HDLTriop, HDLUnop, HDLValue, HDLVariableDef, HDLVarRef, isArrayItem, isArrayType, isBinop, isBlock, isConstExpr, isFuncCall, isLogicType, isTriop, isUnop, isVarDecl, isVarRef, isWhileop } from "./hdltypes";
import { byteArrayToString, safe_extend } from "../util";
import { HDLBinop, HDLBlock, HDLConstant, HDLDataType, HDLExpr, HDLExtendop, HDLFuncCall, HDLModuleDef, HDLModuleRunner, HDLTriop, HDLUnop, HDLValue, HDLVariableDef, HDLVarRef, isArrayItem, isArrayType, isBinop, isBlock, isConstExpr, isFuncCall, isLogicType, isTriop, isUnop, isVarDecl, isVarRef, isWhileop } from "./hdltypes";
interface VerilatorUnit {
_ctor_var_reset(state) : void;
@ -10,7 +10,7 @@ interface VerilatorUnit {
_change_request(state) : boolean;
}
export class HDLModuleJS {
export class HDLModuleJS implements HDLModuleRunner {
mod: HDLModuleDef;
constpool: HDLModuleDef;
@ -22,14 +22,12 @@ export class HDLModuleJS {
stopped: boolean = false;
settleTime: number = 0;
curconsts: {};
constused: number;
specfuncs: VerilatorUnit[] = [];
constructor(mod: HDLModuleDef, constpool: HDLModuleDef) {
this.mod = mod;
this.constpool = constpool;
}
init() {
this.basefuncs = {} as any;
this.state = {}; //new Object(this.funcs) as any;
// set built-in functions
@ -39,10 +37,12 @@ export class HDLModuleJS {
// generate functions
this.basefuncs = this.genFuncs({});
this.curfuncs = this.basefuncs;
for (var i=0; i<2; i++) {
for (var i=0; i<16; i++) {
this.specfuncs[i] = this.genFuncs({
reset:(i&1),
//reset:(i&1),
//clk:(i&2),
//CPU16$state:i
test_CPU16_top$cpu$state:i
});
}
// set initial state
@ -57,22 +57,30 @@ export class HDLModuleJS {
}
}
init() {
}
genFuncs(constants: {}) : VerilatorUnit {
var funcs = Object.create(this.basefuncs);
this.curconsts = constants;
for (var block of this.mod.blocks) {
this.locals = {};
// if we have at least 1 constant value, check for it (set counter to zero)
this.constused = (Object.keys(this.curconsts).length == 0) ? 99999 : 0;
var s = this.block2js(block);
try {
var funcname = block.name||'__anon';
var funcbody = `'use strict'; function ${funcname}(o) { ${s} }; return ${funcname};`;
var func = new Function('', funcbody)();
funcs[block.name] = func;
//console.log(funcbody);
} catch (e) {
console.log(funcbody);
throw e;
if (this.constused) {
try {
var funcname = block.name||'__anon';
var funcbody = `'use strict'; function ${funcname}(o) { ${s} }; return ${funcname};`;
var func = new Function('', funcbody)();
funcs[block.name] = func;
//console.log(funcbody);
} catch (e) {
console.log(funcbody);
throw e;
}
}
//if (this.constused) console.log('FUNC',constants,funcname,this.constused);
}
return funcs;
}
@ -88,14 +96,14 @@ export class HDLModuleJS {
return s;
}
reset() {
powercycle() {
this.finished = false;
this.stopped = false;
this.basefuncs._ctor_var_reset(this.state);
this.basefuncs._eval_initial(this.state);
for (var i=0; i<100; i++) {
this.basefuncs._eval_settle(this.state);
this.eval();
this.basefuncs._eval(this.state);
var Vchange = this.basefuncs._change_request(this.state);
if (!Vchange) {
this.settleTime = i;
@ -106,9 +114,14 @@ export class HDLModuleJS {
}
eval() {
//var clk = this.state.clk as number;
var clk = this.state.clk as number;
var reset = this.state.reset as number;
this.curfuncs = this.specfuncs[reset];
var state = this.state.test_CPU16_top$cpu$state as number;
var opcode = this.state.CPU$opcode as number;
var aluop = this.state.CPU$aluop as number;
var fi = state;
//this.curfuncs = this.specfuncs[fi & 0xff];
this.curfuncs = this.basefuncs;
for (var i=0; i<100; i++) {
this.curfuncs._eval(this.state);
var Vchange = this.curfuncs._change_request(this.state);
@ -125,15 +138,13 @@ export class HDLModuleJS {
throw new Error(`model did not converge on eval()`)
}
tick2() {
//var k1 = Object.keys(this.state).length;
// TODO
this.state.clk = 0;
this.eval();
this.state.clk = 1;
this.eval();
//var k2 = Object.keys(this.state).length;
//if (k2 != k1) console.log(k1, k2);
tick2(iters: number) {
while (iters-- > 0) {
this.state.clk = 0;
this.eval();
this.state.clk = 1;
this.eval();
}
}
defaultValue(dt: HDLDataType, vardef?: HDLVariableDef) : HDLValue {
@ -186,14 +197,15 @@ export class HDLModuleJS {
return this.expr2js(block);
}
expr2js(e: HDLExpr, options?:{cond?:boolean}) : string {
expr2js(e: HDLExpr, options?:{store?:boolean,cond?:boolean}) : string {
if (e == null) {
return "/*null*/"; // TODO
}
if (isVarRef(e)) {
if (this.curconsts[e.refname] != null)
if (this.curconsts[e.refname] != null && !(options||{}).store) {
this.constused++;
return `${this.curconsts[e.refname]}`;
else if (this.locals[e.refname])
} else if (this.locals[e.refname])
return `${e.refname}`;
else
return `o.${e.refname}`;
@ -233,7 +245,7 @@ export class HDLModuleJS {
case 'assignpre':
case 'assigndly':
case 'assignpost':
return `${this.expr2js(e.right)} = ${this.expr2js(e.left)}`;
return `${this.expr2js(e.right, {store:true})} = ${this.expr2js(e.left)}`;
case 'arraysel':
case 'wordsel':
return `${this.expr2js(e.left)}[${this.expr2js(e.right)}]`;
@ -303,11 +315,9 @@ export class HDLModuleJS {
expr2reset(e: HDLExpr) {
if (isVarRef(e)) {
// don't reset constant values
if (this.curconsts[e.refname] != null)
return `/* ${e.refname} */`;
// TODO: random values?
if (isLogicType(e.dtype)) {
if (this.curconsts[e.refname] != null) {
return `${e.refname}`;
} else if (isLogicType(e.dtype)) {
return `${this.expr2js(e)} = 0`;
} else if (isArrayType(e.dtype)) {
if (isLogicType(e.dtype.subtype)) {
@ -380,6 +390,32 @@ export class HDLModuleJS {
return null;
}
isStopped() { return this.stopped; }
isFinished() { return this.finished; }
tick() {
(this.state as any).clk ^= 1;
this.eval();
}
get(varname: string) {
return this.state[varname];
}
set(varname: string, value) {
if (varname in this.state) {
this.state[varname] = value;
}
}
saveState() {
return safe_extend(true, {}, this.state);
}
loadState(state) {
safe_extend(true, this.state, state);
}
}
const OP2JS : {[key:string] : string} = {

View File

@ -1,4 +1,18 @@
export interface HDLModuleRunner {
state: any; // live state or proxy object
eval() : void;
tick() : void;
tick2(iters: number) : void;
powercycle() : void;
isFinished() : boolean;
isStopped() : boolean;
saveState() : {};
loadState(state: {}) : void;
}
///
export interface HDLLogicType extends HDLSourceObject {
left: number;
right: number;

View File

@ -1,5 +1,5 @@
import { HDLBinop, HDLBlock, HDLConstant, HDLDataType, HDLExpr, HDLExtendop, HDLFuncCall, HDLModuleDef, HDLTriop, HDLUnop, HDLValue, HDLVariableDef, HDLVarRef, isArrayItem, isArrayType, isBinop, isBlock, isConstExpr, isFuncCall, isLogicType, isTriop, isUnop, isVarDecl, isVarRef, isWhileop } from "./hdltypes";
import { HDLBinop, HDLBlock, HDLConstant, HDLDataType, HDLExpr, HDLExtendop, HDLFuncCall, HDLModuleDef, HDLModuleRunner, HDLSourceLocation, HDLTriop, HDLUnop, HDLValue, HDLVariableDef, HDLVarRef, HDLWhileOp, isArrayItem, isArrayType, isBinop, isBlock, isConstExpr, isFuncCall, isLogicType, isTriop, isUnop, isVarDecl, isVarRef, isWhileop } from "./hdltypes";
import binaryen = require('binaryen');
interface VerilatorUnit {
@ -21,6 +21,7 @@ const VERILATOR_UNIT_FUNCTIONS = [
interface Options {
store?: boolean;
funcblock?: HDLBlock;
resulttype?: number;
}
const GLOBAL = "$$GLOBAL";
@ -29,6 +30,16 @@ const MEMORY = "0";
///
export class HDLError extends Error {
obj: any;
constructor(obj: any, msg: string) {
super(msg);
Object.setPrototypeOf(this, HDLError.prototype);
this.obj = obj;
if (obj) console.log(obj);
}
}
function getDataTypeSize(dt: HDLDataType) : number {
if (isLogicType(dt)) {
if (dt.left <= 7)
@ -42,14 +53,41 @@ function getDataTypeSize(dt: HDLDataType) : number {
else
return (dt.left >> 6) * 8 + 8; // 64-bit words
} else if (isArrayType(dt)) {
return (dt.high.cvalue - dt.low.cvalue + 1) * getDataTypeSize(dt.subtype);
//return (asValue(dt.high) - asValue(dt.low) + 1) * dt.
// TODO: additional padding for array?
return (Math.abs(dt.high.cvalue - dt.low.cvalue) + 1) * getDataTypeSize(dt.subtype);
} else {
console.log(dt);
throw Error(`don't know data type`);
throw new HDLError(dt, `don't know data type`);
}
}
function getArrayElementSize(e: HDLExpr) : number {
if (isVarRef(e) && isArrayType(e.dtype)) {
return getDataTypeSize(e.dtype.subtype);
} else if (isBinop(e) && isArrayType(e.dtype)) {
return getDataTypeSize(e.dtype.subtype);
}
throw new HDLError(e, `cannot figure out array element size`);
}
function getArrayValueSize(e: HDLExpr) : number {
if (isVarRef(e)) {
var dt = e.dtype;
while (isArrayType(dt))
dt = dt.subtype;
return getDataTypeSize(dt);
} else if (isBinop(e) && e.op == 'arraysel') {
return getArrayValueSize(e.left);
}
throw new HDLError(e, `cannot figure out array value size`);
}
function getAlignmentForSize(size) {
if (size <= 1) return 1;
else if (size <= 2) return 2;
else if (size <= 4) return 4;
else return 8;
}
function getBinaryenType(size: number) {
return size <= 4 || size > 8 ? binaryen.i32 : binaryen.i64
}
@ -61,6 +99,7 @@ interface StructRec {
size: number;
itype: number;
index: number;
init: HDLBlock;
}
class Struct {
@ -72,10 +111,15 @@ class Struct {
addVar(vardef: HDLVariableDef) {
var size = getDataTypeSize(vardef.dtype);
return this.addEntry(vardef.name, getBinaryenType(size), size, vardef.dtype, false);
var rec = this.addEntry(vardef.name, getBinaryenType(size), size, vardef.dtype, false);
rec.init = vardef.initValue;
if (vardef.constValue) throw new HDLError(vardef, `can't handle constants`);
return rec;
}
addEntry(name: string, itype: number, size: number, hdltype: HDLDataType, isParam: boolean) : StructRec {
var align = getAlignmentForSize(size);
while (this.len % align) this.len++;
// pointers are 32 bits, so if size > 8 it's a pointer
var rec : StructRec = {
name: name,
@ -84,8 +128,9 @@ class Struct {
itype: itype,
index: this.params.length + this.locals.length,
offset: this.len,
init: null,
}
this.len += 8; //TODO: rec.size, alignment
this.len += size;
if (rec.name != null) this.vars[rec.name] = rec;
if (isParam) this.params.push(rec);
else this.locals.push(rec);
@ -105,117 +150,228 @@ class Struct {
}
}
export class HDLModuleWASM {
///
export class HDLModuleWASM implements HDLModuleRunner {
bmod: binaryen.Module;
instance: WebAssembly.Instance;
hdlmod: HDLModuleDef;
constpool: HDLModuleDef;
globals: Struct;
locals: Struct;
finished: boolean;
stopped: boolean;
databuf: Buffer;
data8: Uint8Array;
state: any;
statebytes: number;
outputbytes: number;
constructor(moddef: HDLModuleDef, constpool: HDLModuleDef) {
this.hdlmod = moddef;
this.constpool = constpool;
}
init() {
this.bmod = new binaryen.Module();
this.genTypes();
this.bmod.setMemory(this.globals.len, this.globals.len, MEMORY); // TODO?
var memsize = Math.ceil(this.globals.len / 65536) + 1;
this.bmod.setMemory(memsize, memsize, MEMORY); // memory is in 64k chunks
this.genFuncs();
}
async init() {
await this.genModule();
this.genInitData();
}
genTypes() {
// generate global variables
var state = new Struct();
// outputs are first
for (const [varname, vardef] of Object.entries(this.hdlmod.vardefs)) {
if (vardef.isOutput) state.addVar(vardef);
}
this.outputbytes = state.len;
// followed by inputs and internal vars
for (const [varname, vardef] of Object.entries(this.hdlmod.vardefs)) {
if (!vardef.isOutput) state.addVar(vardef);
}
this.statebytes = state.len;
// followed by constant pool
for (const [varname, vardef] of Object.entries(this.constpool.vardefs)) {
state.addVar(vardef);
}
this.globals = state;
}
genFuncs() {
// function type (dsegptr)
var fsig = binaryen.createType([binaryen.i32])
for (var block of this.hdlmod.blocks) {
// TODO: cfuncs only
var fnname = block.name;
// find locals of function
var fscope = new Struct();
fscope.addEntry(GLOBAL, binaryen.i32, 4, null, true); // 1st param to function
// add __req local if change_request function
if (this.funcResult(block) == binaryen.i32) {
fscope.addEntry(CHANGEDET, binaryen.i32, 1, null, false);
}
this.pushScope(fscope);
block.exprs.forEach((e) => {
if (e && isVarDecl(e)) {
fscope.addVar(e);
}
})
// create function body
var fbody = this.block2wasm(block, {funcblock:block});
//var fbody = this.bmod.return(this.bmod.i32.const(0));
var fret = this.funcResult(block);
var fref = this.bmod.addFunction(fnname, fsig, fret, fscope.getLocals(), fbody);
this.popScope();
}
// export functions
for (var fname of VERILATOR_UNIT_FUNCTIONS) {
this.bmod.addFunctionExport(fname, fname);
}
// create helper functions
this.addHelperFunctions();
// create wasm module
console.log(this.bmod.emitText());
//this.bmod.optimize();
if (!this.bmod.validate())
throw Error(`could not validate wasm module`);
// function type (dsegptr)
var fsig = binaryen.createType([binaryen.i32])
for (var block of this.hdlmod.blocks) {
// TODO: cfuncs only
var fnname = block.name;
// find locals of function
var fscope = new Struct();
fscope.addEntry(GLOBAL, binaryen.i32, 4, null, true); // 1st param to function
// add __req local if change_request function
if (this.funcResult(block) == binaryen.i32) {
fscope.addEntry(CHANGEDET, binaryen.i32, 1, null, false);
}
this.pushScope(fscope);
block.exprs.forEach((e) => {
if (e && isVarDecl(e)) {
fscope.addVar(e);
}
})
// create function body
var fbody = this.block2wasm(block, {funcblock:block});
//var fbody = this.bmod.return(this.bmod.i32.const(0));
var fret = this.funcResult(block);
var fref = this.bmod.addFunction(fnname, fsig, fret, fscope.getLocals(), fbody);
this.popScope();
}
// export functions
for (var fname of VERILATOR_UNIT_FUNCTIONS) {
this.bmod.addFunctionExport(fname, fname);
}
// create helper functions
this.addHelperFunctions();
// create wasm module
//console.log(this.bmod.emitText());
//this.bmod.optimize();
if (!this.bmod.validate())
throw new HDLError(this.bmod.emitText(), `could not validate wasm module`);
}
async genModule() {
//console.log(this.bmod.emitText());
this.test();
var wasmData = this.bmod.emitBinary();
var compiled = await WebAssembly.compile(wasmData);
this.instance = await WebAssembly.instantiate(compiled, {});
this.databuf = (this.instance.exports[MEMORY] as any).buffer;
this.data8 = new Uint8Array(this.databuf);
this.state = new Proxy({}, {
// TODO
get: (target, prop, receiver) => {
var vref = this.globals.lookup(prop.toString());
if (vref !== undefined) {
if (isLogicType(vref.type)) {
return this.data8[vref.offset]; // TODO: other types
} else if (isArrayType(vref.type)) {
return new Uint8Array(this.databuf, vref.offset, vref.size); // TODO: other types
} else
throw new HDLError(vref, `can't get property ${prop.toString()}`);
}
return undefined;
},
set: (obj, prop, value) => {
var vref = this.globals.lookup(prop.toString());
if (vref !== undefined) {
if (isLogicType(vref.type)) {
this.data8[vref.offset] = value; // TODO: other types
return true;
} else if (isArrayType(vref.type)) {
throw new HDLError(vref, `can't set property ${prop.toString()}`);
} else {
return true;
}
} else {
return true; // silently fail
}
}
});
}
genInitData() {
for (var rec of this.globals.locals) {
if (rec.init) {
var arr = this.state[rec.name];
if (!arr) throw new HDLError(rec, `no array to init`);
for (let i=0; i<rec.init.exprs.length; i++) {
let e = rec.init.exprs[i];
if (isArrayItem(e) && isConstExpr(e.expr)) {
arr[e.index] = e.expr.cvalue;
} else {
throw new HDLError(e, `non-const expr in initarray`);
}
}
//console.log(rec.name, rec.type, arr);
}
}
}
powercycle() {
this.finished = false;
this.stopped = false;
(this.instance.exports as any)._ctor_var_reset(0);
(this.instance.exports as any)._eval_initial(0);
for (var i=0; i<100; i++) {
(this.instance.exports as any)._eval_settle(0);
(this.instance.exports as any)._eval(0);
var Vchange = (this.instance.exports as any)._change_request(0);
if (!Vchange) {
return;
}
}
throw new HDLError(null, `model did not converge on reset()`)
}
eval() {
(this.instance.exports as any).eval(0);
}
tick() {
// TODO: faster
this.state.clk ^= 1;
(this.instance.exports as any).eval(0);
}
tick2(iters: number) {
(this.instance.exports as any).tick2(0, iters);
}
isFinished() { return this.finished; }
isStopped() { return this.stopped; }
saveState() {
return { o: this.data8.slice(0, this.statebytes) };
}
loadState(state) {
this.data8.set(state.o as Uint8Array);
}
test() {
var wasmData = this.bmod.emitBinary();
var compiled = new WebAssembly.Module(wasmData);
var instance = new WebAssembly.Instance(compiled, {});
var mem = (instance.exports[MEMORY] as any).buffer;
(instance.exports as any)._ctor_var_reset(0);
(instance.exports as any)._eval_initial(0);
(instance.exports as any)._eval_settle(0);
var data = new Uint8Array(mem);
var o_clk = this.globals.lookup('clk').offset;
var o_reset = this.globals.lookup('reset').offset
data[o_reset] = 1;
//new Uint8Array(mem)[this.globals.lookup('reset').offset] = 0;
//new Uint8Array(mem)[this.globals.lookup('enable').offset] = 1;
for (var i=0; i<20; i++) {
data[o_clk] = 0;
(instance.exports as any).tick(0);
data[o_clk] = 1;
(instance.exports as any).tick(0);
if (i==5) new Uint8Array(mem)[this.globals.lookup('reset').offset] = 0;
//console.log(this.globals);
this.state.reset = 1;
for (var i=0; i<50; i++) {
this.tick();
this.tick();
if (i==5) this.state.reset = 0;
}
console.log(mem);
console.log(this.databuf);
var t1 = new Date().getTime();
var tickiters = 10000;
var looplen = Math.round(100000000/tickiters);
for (var i=0; i<looplen; i++) {
(instance.exports as any).tick2(0,tickiters);
this.tick2(tickiters);
}
var t2 = new Date().getTime();
console.log('wasm:',t2-t1,'msec',i*tickiters,'iterations');
console.log(mem);
console.log(this.databuf);
}
addHelperFunctions() {
this.bmod.addFunction("tick",
this.bmod.addFunction("eval",
binaryen.createType([binaryen.i32]), // (dataptr)
binaryen.i32, // return # of iterations
[], // no locals
this.makeTickFunction(0)
);
this.bmod.addFunctionExport("tick", "tick");
this.bmod.addFunctionExport("eval", "eval");
// TODO: what if there is no clk? (e.g. ALU)
var l_dseg = this.bmod.local.get(0, binaryen.i32);
var l_count = this.bmod.local.get(1, binaryen.i32);
this.bmod.addFunction("tick2",
@ -224,9 +380,9 @@ export class HDLModuleWASM {
[], // no locals
this.bmod.loop("@loop", this.bmod.block(null, [
this.makeSetVariableFunction("clk", 0),
this.bmod.drop(this.bmod.call("tick", [l_dseg], binaryen.i32)),
this.bmod.drop(this.bmod.call("eval", [l_dseg], binaryen.i32)),
this.makeSetVariableFunction("clk", 1),
this.bmod.drop(this.bmod.call("tick", [l_dseg], binaryen.i32)),
this.bmod.drop(this.bmod.call("eval", [l_dseg], binaryen.i32)),
// dec $1
this.bmod.local.set(1, this.bmod.i32.sub(l_count, this.bmod.i32.const(1))),
// goto @loop if $1
@ -236,6 +392,12 @@ export class HDLModuleWASM {
this.bmod.addFunctionExport("tick2", "tick2");
}
makeGetVariableFunction(name: string, value: number) {
var dtype = this.globals.lookup(name).type;
var src : HDLVarRef = {refname:name, dtype:dtype};
return this.e2w(src);
}
makeSetVariableFunction(name: string, value: number) {
var dtype = this.globals.lookup(name).type;
var dest : HDLVarRef = {refname:name, dtype:dtype};
@ -276,7 +438,7 @@ export class HDLModuleWASM {
var type = getBinaryenType(size);
if (type == binaryen.i32) return this.bmod.i32;
else if (type == binaryen.i64) return this.bmod.i64;
else throw Error();
else throw new HDLError(null, `unknown type for i3264 ${type}`);
}
dataptr() : number {
@ -299,20 +461,24 @@ export class HDLModuleWASM {
} else if (isUnop(e) || isBinop(e) || isTriop(e) || isWhileop(e)) {
var n = `_${e.op}2wasm`;
var fn = this[n];
if (fn == null) { console.log(e); throw Error(`no such method ${n}`) }
if (fn == null) { throw new HDLError(e, `no such method ${n}`) }
return this[n](e, opts);
} else {
console.log('expr', e);
throw Error(`could not translate expr`)
throw new HDLError(e, `could not translate expr`)
}
}
block2wasm(e: HDLBlock, opts?:Options) : number {
var stmts = e.exprs.map((stmt) => this.e2w(stmt));
var ret = opts && opts.funcblock ? this.funcResult(opts.funcblock) : binaryen.none;
if (ret == binaryen.i32) { // must have return value
// must have return value for change_request function
if (ret == binaryen.i32) {
stmts.push(this.bmod.return(this.bmod.local.get(this.locals.lookup(CHANGEDET).index, ret)));
}
// return block value for loop condition
if (opts && opts.resulttype) {
ret = binaryen.i32;
}
return this.bmod.block(e.name, stmts, ret);
}
@ -328,10 +494,9 @@ export class HDLModuleWASM {
if (size <= 4)
return this.bmod.i32.const(e.cvalue);
else
throw new Error(`constants > 32 bits not supported`)
throw new HDLError(e, `constants > 32 bits not supported`)
} else {
console.log(e);
throw new Error(`non-logic constants not supported`)
throw new HDLError(e, `non-logic constants not supported`)
}
}
@ -342,17 +507,9 @@ export class HDLModuleWASM {
if (local != null) {
return this.bmod.local.get(local.index, local.itype);
} else if (global != null) {
if (global.size == 1) {
return this.bmod.i32.load8_u(global.offset, 1, this.dataptr());
} else if (global.size == 2) {
return this.bmod.i32.load16_u(global.offset, 2, this.dataptr());
} else if (global.size == 4) {
return this.bmod.i32.load(global.offset, 4, this.dataptr());
} else if (global.size == 8) {
return this.bmod.i64.load(global.offset, 8, this.dataptr());
}
return this.loadmem(this.dataptr(), global.offset, global.size);
}
throw new Error(`cannot lookup variable ${e.refname}`)
throw new HDLError(e, `cannot lookup variable ${e.refname}`)
}
local2wasm(e: HDLVariableDef, opts:Options) : number {
@ -361,7 +518,7 @@ export class HDLModuleWASM {
return this.bmod.nop(); // TODO
}
assign2wasm(dest: HDLExpr, src: HDLExpr) {
assign2wasm(dest: HDLExpr, src: HDLExpr) : number {
var value = this.e2w(src);
if (isVarRef(dest)) {
var local = this.locals && this.locals.lookup(dest.refname);
@ -369,19 +526,70 @@ export class HDLModuleWASM {
if (local != null) {
return this.bmod.local.set(local.index, value);
} else if (global != null) {
if (global.size == 1) {
return this.bmod.i32.store8(global.offset, 1, this.dataptr(), value);
} else if (global.size == 2) {
return this.bmod.i32.store16(global.offset, 2, this.dataptr(), value);
} else if (global.size == 4) {
return this.bmod.i32.store(global.offset, 4, this.dataptr(), value);
} else if (global.size == 8) {
return this.bmod.i64.store(global.offset, 8, this.dataptr(), value);
}
return this.storemem(this.dataptr(), global.offset, global.size, value);
}
} else if (isBinop(dest)) {
// TODO: array bounds
var addr = this.address2wasm(dest);
return this.storemem(addr, 0, getDataTypeSize(dest.dtype), value);
}
throw new HDLError([dest, src], `cannot complete assignment`);
}
loadmem(ptr, offset:number, size:number) : number {
if (size == 1) {
return this.bmod.i32.load8_u(offset, 1, ptr);
} else if (size == 2) {
return this.bmod.i32.load16_u(offset, 2, ptr);
} else if (size == 4) {
return this.bmod.i32.load(offset, 4, ptr);
} else if (size == 8) {
return this.bmod.i64.load(offset, 8, ptr);
} else {
throw new HDLError(null, `bad size ${size}`)
}
}
storemem(ptr, offset:number, size:number, value) : number {
if (size == 1) {
return this.bmod.i32.store8(offset, 1, ptr, value);
} else if (size == 2) {
return this.bmod.i32.store16(offset, 2, ptr, value);
} else if (size == 4) {
return this.bmod.i32.store(offset, 4, ptr, value);
} else if (size == 8) {
return this.bmod.i64.store(offset, 8, ptr, value);
} else {
throw new HDLError(null, `bad size ${size}`)
}
}
address2wasm(e: HDLExpr) : number {
if (isBinop(e) && e.op == 'arraysel') {
var array = this.address2wasm(e.left);
var elsize = getArrayElementSize(e.left);
var index = this.e2w(e.right);
return this.bmod.i32.add(
array,
this.bmod.i32.mul(this.bmod.i32.const(elsize), index)
);
} else if (isVarRef(e)) {
var local = this.locals && this.locals.lookup(e.refname);
var global = this.globals.lookup(e.refname);
if (local != null) {
throw new HDLError(e, `can't get array local address yet`);
} else if (global != null) {
return this.bmod.i32.const(global.offset);
}
}
console.log(dest, src);
throw new Error(`cannot complete assignment`);
throw new HDLError(e, `cannot get address`);
}
// TODO: array bounds
_arraysel2wasm(e: HDLBinop, opts:Options) : number {
var addr = this.address2wasm(e);
var elsize = getArrayValueSize(e);
return this.loadmem(addr, 0, elsize);
}
_assign2wasm(e: HDLBinop, opts:Options) {
@ -406,6 +614,27 @@ export class HDLModuleWASM {
_cond2wasm(e: HDLTriop, opts:Options) {
return this.bmod.select(this.e2w(e.cond), this.e2w(e.left), this.e2w(e.right));
}
_condbound2wasm(e: HDLTriop, opts:Options) {
return this.bmod.select(this.e2w(e.cond), this.e2w(e.left), this.e2w(e.right));
}
_while2wasm(e: HDLWhileOp, opts:Options) {
var block = [];
if (e.precond) {
block.push(this.e2w(e.precond));
}
if (e.loopcond) {
block.push(this.bmod.br_if("@block", this.e2w(e.loopcond, {resulttype:binaryen.i32})));
}
if (e.body) {
block.push(this.e2w(e.body));
}
if (e.inc) {
block.push(this.e2w(e.inc));
}
block.push(this.bmod.br("@loop"));
return this.bmod.loop("@loop", this.bmod.block("@block", block, binaryen.none));
}
_ccast2wasm(e: HDLUnop, opts:Options) {
return this.e2w(e.left, opts);
@ -422,9 +651,13 @@ export class HDLModuleWASM {
var inst = this.i3264(e.dtype);
return inst.xor(inst.const(-1, -1), this.e2w(e.left, opts));
}
_negate2wasm(e: HDLUnop, opts:Options) {
var inst = this.i3264(e.dtype);
return inst.sub(inst.const(0,0), this.e2w(e.left, opts));
}
_changedet2wasm(e: HDLBinop, opts:Options) {
var req = this.locals.lookup(CHANGEDET);
if (!req) throw Error(`no changedet local`);
if (!req) throw new HDLError(e, `no changedet local`);
var left = this.e2w(e.left);
var right = this.e2w(e.right);
return this.bmod.block(null, [
@ -439,6 +672,21 @@ export class HDLModuleWASM {
this.assign2wasm(e.right, e.left)
]);
}
_extends2wasm(e: HDLExtendop, opts:Options) {
var value = this.e2w(e.left);
var inst = this.i3264(e.dtype);
/*
if (e.widthminv == 8) {
return inst.extend8_s(value);
} else if (e.widthminv == 16) {
return inst.extend16_s(value);
} else if (e.widthminv == 32 && e.width == 64) {
return this.bmod.i64.extend32_s(value);
} else */ {
var shift = this.bmod.i32.const(e.width - e.widthminv);
return inst.shr_s(inst.shl(value, shift), shift);
}
}
_or2wasm(e: HDLBinop, opts:Options) {
return this.i3264(e.dtype).or(this.e2w(e.left), this.e2w(e.right));
@ -481,5 +729,11 @@ export class HDLModuleWASM {
_gte2wasm(e: HDLBinop, opts:Options) {
return this.i3264(e.dtype).ge_u(this.e2w(e.left), this.e2w(e.right));
}
_gts2wasm(e: HDLBinop, opts:Options) {
return this.i3264(e.dtype).gt_s(this.e2w(e.left), this.e2w(e.right));
}
_lts2wasm(e: HDLBinop, opts:Options) {
return this.i3264(e.dtype).lt_s(this.e2w(e.left), this.e2w(e.right));
}
}

View File

@ -14,26 +14,33 @@ try {
throw e;
}
console.log(parser);
var modname = process.argv[3];
if (1 && modname) {
var modname = 'TOP'; //process.argv[3];
async function testWASM() {
var bmod = new HDLModuleWASM(parser.modules[modname], parser.modules['@CONST-POOL@']);
bmod.init();
await bmod.init();
bmod.powercycle();
bmod.test();
}
if (1 && modname) {
async function testJS() {
var mod = new HDLModuleJS(parser.modules[modname], parser.modules['@CONST-POOL@']);
mod.init();
console.log(mod.getJSCode());
mod.reset();
mod.powercycle();
var t1 = new Date().getTime();
for (var i=0; i<100000000; i++) {
mod.tick2();
mod.tick2(1);
}
mod.state.reset = 1;
for (var j=0; j<10000000; j++) {
mod.tick2();
mod.tick2(1);
}
var t2 = new Date().getTime();
console.log(mod.state);
console.log('js:',t2-t1, 'msec', i, 'iterations', i/1000/(t2-t1), 'MHz')
//console.log(emitter);
}
testWASM().then(testJS);

View File

@ -5,8 +5,9 @@ import { SampleAudio } from "../common/audio";
import { safe_extend } from "../common/util";
import { WaveformView, WaveformProvider, WaveformMeta } from "../ide/waveform";
import { setFrameRateUI, loadScript } from "../ide/ui";
import { HDLUnit, isLogicType } from "../common/hdl/hdltypes";
import { HDLModuleRunner, HDLUnit, isLogicType } from "../common/hdl/hdltypes";
import { HDLModuleJS } from "../common/hdl/hdlruntime";
import { HDLModuleWASM } from "../common/hdl/hdlwasm";
declare var Split;
@ -84,8 +85,7 @@ var VerilogPlatform = function(mainElement, options) {
var videoHeight = 256;
var maxVideoLines = 262+40; // vertical hold
var idata, timer, timerCallback;
var top : HDLModuleJS;
var gen;
var top : HDLModuleRunner;
var cyclesPerFrame = (256+23+7+23)*262; // 4857480/60 Hz
// control inputs
@ -133,23 +133,25 @@ var VerilogPlatform = function(mainElement, options) {
var frameRate = 0;
function vidtick() {
top.tick2();
if (useAudio)
audio.feedSample(gen.spkr*(1.0/255.0), 1);
if (keycode && keycode >= 128 && gen.keystrobe) // keystrobe = clear hi bit of key buffer
keycode = gen.keycode = keycode & 0x7f;
if (debugCond && debugCond())
top.tick2(1);
if (useAudio) {
audio.feedSample(top.state.spkr * (1.0/255.0), 1);
}
if (keycode && keycode >= 128 && top.state.keystrobe) { // keystrobe = clear hi bit of key buffer
keycode = keycode & 0x7f;
top.state.keycode = keycode;
}
if (debugCond && debugCond()) {
debugCond = null;
}
}
function doreset() {
gen.reset = 1;
top.state.reset = 1;
}
function unreset() {
if (gen.reset !== undefined) {
gen.reset = 0;
}
top.state.reset = 0;
}
// inner Platform class
@ -174,6 +176,8 @@ var VerilogPlatform = function(mainElement, options) {
async start() {
await loadScript('./gen/common/hdl/hdltypes.js');
await loadScript('./gen/common/hdl/hdlruntime.js');
await loadScript('./gen/common/hdl/hdlwasm.js');
await loadScript('./node_modules/binaryen/index.js'); // TODO: path?
video = new RasterVideo(mainElement,videoWidth,videoHeight,{overscan:true});
video.create();
poller = setKeyboardFromMap(video, switches, VERILOG_KEYCODE_MAP, (o,key,code,flags) => {
@ -186,7 +190,7 @@ var VerilogPlatform = function(mainElement, options) {
timerCallback = () => {
if (!this.isRunning())
return;
if (gen && gen.switches != null) gen.switches = switches[0];
if (top) top.state.switches = switches[0];
this.updateFrame();
};
this.setFrameRate(60);
@ -212,7 +216,7 @@ var VerilogPlatform = function(mainElement, options) {
video.setupMouseEvents();
// setup mouse click
video.vcanvas.click( (e) => {
if (!gen) return; // must have created emulator
if (!top) return; // must have created emulator
if (!e.ctrlKey) {
//setFrameRateUI(60);
return; // ctrl key must be down
@ -238,10 +242,10 @@ var VerilogPlatform = function(mainElement, options) {
setGenInputs() {
useAudio = (audio != null);
//TODO debugCond = this.getDebugCallback();
if (gen.switches_p1 != null) gen.switches_p1 = switches[0];
if (gen.switches_p2 != null) gen.switches_p2 = switches[1];
if (gen.switches_gen != null) gen.switches_gen = switches[2];
if (gen.keycode != null) gen.keycode = keycode;
top.state.switches_p1 = switches[0];
top.state.switches_p2 = switches[1];
top.state.switches_gen = switches[2];
top.state.keycode = keycode;
}
updateVideoFrame() {
@ -316,7 +320,7 @@ var VerilogPlatform = function(mainElement, options) {
}
updateFrame() {
if (!gen) return;
if (!top) return;
if (this.hasvideo)
this.updateVideoFrame();
else
@ -365,26 +369,26 @@ var VerilogPlatform = function(mainElement, options) {
if (inspect) {
inspect_data[frameidx] = inspect_obj[inspect_sym];
}
let rgb = gen.rgb;
let rgb = top.state.rgb;
idata[frameidx] = rgb & 0x80000000 ? rgb : RGBLOOKUP[rgb & 15];
frameidx++;
}
} else if (!framehsync && gen.hsync) {
} else if (!framehsync && top.state.hsync) {
framehsync = true;
} else if ((framehsync && !gen.hsync) || framex > videoWidth*2) {
} else if ((framehsync && !top.state.hsync) || framex > videoWidth*2) {
framehsync = false;
framex = 0;
framey++;
if (gen.hpaddle != null) gen.hpaddle = framey > video.paddle_x ? 1 : 0;
if (gen.vpaddle != null) gen.vpaddle = framey > video.paddle_y ? 1 : 0;
top.state.hpaddle = framey > video.paddle_x ? 1 : 0;
top.state.vpaddle = framey > video.paddle_y ? 1 : 0;
}
if (framey > maxVideoLines || gen.vsync) {
if (framey > maxVideoLines || top.state.vsync) {
framevsync = true;
framey = 0;
framex = 0;
frameidx = 0;
if (gen.hpaddle != null) gen.hpaddle = 0;
if (gen.vpaddle != null) gen.vpaddle = 0;
top.state.hpaddle = 0;
top.state.vpaddle = 0;
} else {
var wasvsync = framevsync;
framevsync = false;
@ -400,7 +404,7 @@ var VerilogPlatform = function(mainElement, options) {
var arr = trace_signals;
for (var i=0; i<arr.length; i++) {
var v = arr[i];
var z = gen[v.name];
var z = top.state[v.name];
trace_buffer[trace_index] = z+0;
trace_index++;
}
@ -411,8 +415,7 @@ var VerilogPlatform = function(mainElement, options) {
fillTraceBuffer(count:number) : boolean {
var max_index = Math.min(trace_buffer.length - trace_signals.length, trace_index + count);
while (trace_index < max_index) {
gen.clk ^= 1;
top.eval();
top.tick();
this.snapshotTrace();
if (trace_index == 0)
break;
@ -443,7 +446,7 @@ var VerilogPlatform = function(mainElement, options) {
setSignalValue(index:number, value:number) {
var meta = this.getSignalMetadata()[index];
gen[meta.label] = value;
top.state[meta.label] = value;
this.reset();
}
@ -460,16 +463,17 @@ var VerilogPlatform = function(mainElement, options) {
}
}
loadROM(title:string, output:any) {
async loadROM(title:string, output:any) {
var unit = output as HDLUnit;
var topmod = unit.modules['TOP'];
if (unit.modules && topmod) {
{
// initialize top module and constant pool
top = new HDLModuleJS(topmod, unit.modules['@CONST-POOL@']);
top.init();
top.reset();
gen = top.state;
var useWASM = true;
var _top = new (useWASM ? HDLModuleWASM : HDLModuleJS)(topmod, unit.modules['@CONST-POOL@']);
await _top.init();
_top.powercycle();
top = _top;
// create signal array
var signals : WaveformSignal[] = [];
for (var key in topmod.vardefs) {
@ -490,7 +494,7 @@ var VerilogPlatform = function(mainElement, options) {
// reset
this.poweron();
// query output signals -- video or not?
this.hasvideo = gen.vsync !== undefined && gen.hsync !== undefined && gen.rgb !== undefined;
this.hasvideo = top.state.vsync != null && top.state.hsync != null && top.state.rgb != null;
if (this.hasvideo) {
const IGNORE_SIGNALS = ['clk','reset'];
trace_signals = trace_signals.filter((v) => { return IGNORE_SIGNALS.indexOf(v.name)<0; }); // remove clk, reset
@ -507,11 +511,11 @@ var VerilogPlatform = function(mainElement, options) {
// replace program ROM, if using the assembler
this.reset();
if (output.program_rom && output.program_rom_variable) {
if (gen[output.program_rom_variable]) {
if (gen[output.program_rom_variable].length != output.program_rom.length)
alert("ROM size mismatch -- expected " + gen[output.program_rom_variable].length + " got " + output.program_rom.length);
if (top.state[output.program_rom_variable]) {
if (top.state[output.program_rom_variable].length != output.program_rom.length)
alert("ROM size mismatch -- expected " + top.state.program_rom_variable.length + " got " + output.program_rom.length);
else
gen[output.program_rom_variable].set(output.program_rom);
top.state[output.program_rom_variable].set(output.program_rom);
} else {
alert("No program_rom variable found (" + output.program_rom_variable + ")");
}
@ -525,7 +529,7 @@ var VerilogPlatform = function(mainElement, options) {
restartAudio() {
// stop/start audio
var hasAudio = gen && gen.spkr !== undefined && frameRate > 1;
var hasAudio = top && top.state.spkr != null && frameRate > 1;
if (audio && !hasAudio) {
audio.stop();
audio = null;
@ -549,10 +553,10 @@ var VerilogPlatform = function(mainElement, options) {
}
isBlocked() {
return top && top.finished;
return top && top.isFinished();
}
isStopped() {
return top && top.stopped;
return top && top.isStopped();
}
setFrameRate(rateHz) {
@ -573,21 +577,21 @@ var VerilogPlatform = function(mainElement, options) {
getFrameRate() { return frameRate; }
poweron() {
top.reset();
top.powercycle();
this.reset();
}
reset() {
if (!gen) return;
if (!top) return;
//top.reset(); // to avoid clobbering user inputs
doreset();
trace_index = 0;
if (trace_buffer) trace_buffer.fill(0);
if (video) video.setRotate(gen.rotate ? -90 : 0);
if (video) video.setRotate(top.state.rotate ? -90 : 0);
$("#verilog_bar").hide();
if (!this.hasvideo) this.resume(); // TODO?
}
tick() {
top.tick2();
top.tick2(1);
}
getToolForFilename(fn) {
if (fn.endsWith(".asm")) return "jsasm";
@ -597,13 +601,13 @@ var VerilogPlatform = function(mainElement, options) {
getDefaultExtension() { return ".v"; };
inspect(name:string) : string {
if (!gen) return;
if (!top) return;
if (name) name = name.replace('.','_');
if (!name || !name.match(/^\w+$/)) {
inspect_obj = inspect_sym = null;
return;
}
var val = gen[name];
var val = top.state[name];
/* TODO
if (val === undefined && current_output.code) {
var re = new RegExp("(\\w+__DOT__(?:_[dcw]_)" + name + ")\\b", "gm");
@ -615,7 +619,7 @@ var VerilogPlatform = function(mainElement, options) {
}
*/
if (typeof(val) === 'number') {
inspect_obj = gen;
inspect_obj = top.state;
inspect_sym = name;
} else {
inspect_obj = inspect_sym = null;
@ -634,17 +638,13 @@ var VerilogPlatform = function(mainElement, options) {
// TODO: bind() a function to avoid depot?
saveState() {
var state = {
// TODO: T:gen.ticks(),
o:safe_extend(true, {}, gen)
};
return state;
return {o: top.saveState()};
}
loadState(state) {
gen = safe_extend(true, gen, state.o);
// TODO: gen.setTicks(state.T);
//console.log(gen, state.o);
top.loadState(state.o);
}
saveControlsState() {
return {
p1x: video.paddle_x,
@ -664,10 +664,13 @@ var VerilogPlatform = function(mainElement, options) {
keycode = state.keycode;
}
getDownloadFile() {
return {
extension:".js",
blob: new Blob([top.getJSCode()], {type:"text/plain"})
};
// TODO: WASM code too?
if (top instanceof HDLModuleJS) {
return {
extension:".js",
blob: new Blob([top.getJSCode()], {type:"text/plain"})
};
}
}
} // end of inner class