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verilog: made $readmem a lot faster

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This commit is contained in:
Steven Hugg 2019-08-31 17:17:20 -04:00
parent 5c98c2eb7d
commit eff53c0d92
3 changed files with 33 additions and 29 deletions
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35
src/platform/verilog.ts
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@ -3,9 +3,9 @@
import { Platform, BasePlatform } from "../baseplatform";
import { PLATFORMS, setKeyboardFromMap, AnimationTimer, RasterVideo, Keys, makeKeycodeMap, getMousePos, KeyFlags } from "../emu";
import { SampleAudio } from "../audio";
import { safe_extend, clamp } from "../util";
import { safe_extend, clamp, byteArrayToString } from "../util";
import { WaveformView, WaveformProvider, WaveformMeta } from "../waveform";
import { setFrameRateUI } from "../ui";
import { setFrameRateUI, current_project } from "../ui";
declare var Split;
@ -67,7 +67,7 @@ export var vl_finished = false;
export var vl_stopped = false;
export function VL_UL(x) { return x|0; }
export function VL_ULL(x) { return x|0; }
//export function VL_ULL(x) { return x|0; }
export function VL_TIME_Q() { return (new Date().getTime())|0; }
/// Return true if data[bit] set
@ -121,9 +121,32 @@ export function VL_RAND_RESET_I(bits) { return 0 | Math.floor(Math.random() * (1
export function VL_RANDOM_I(bits) { return 0 | Math.floor(Math.random() * (1<<bits)); }
//export function VL_READMEM_Q(hex,width,depth,array_lsb,fnwords,filename,memp,start,end) {
//console.log(hex,width,depth,array_lsb,fnwords,filename,memp,start,end);
//}
export function VL_READMEM_Q(ishex,width,depth,array_lsb,fnwords,filename,memp,start,end) {
VL_READMEM_W(ishex,width,depth,array_lsb,fnwords,filename,memp,start,end);
}
export function VL_READMEM_W(ishex,width,depth,array_lsb,fnwords,filename,memp,start,end) {
// parse filename from 32-bit values into characters
var barr = [];
for (var i=0; i<filename.length; i++) {
barr.push((filename[i] >> 0) & 0xff);
barr.push((filename[i] >> 8) & 0xff);
barr.push((filename[i] >> 16) & 0xff);
barr.push((filename[i] >> 24) & 0xff);
}
barr = barr.filter(x => x != 0); // ignore zeros
barr.reverse(); // reverse it
var strfn = byteArrayToString(barr); // convert to string
// parse hex/binary file
var strdata = current_project.getFile(strfn) as string;
if (strdata == null) throw "Could not $readmem '" + strfn + "'";
var data = strdata.split('\n').filter(s => s !== '').map(s => parseInt(s, ishex ? 16 : 2));
console.log('$readmem', ishex, strfn, data.length);
// copy into destination array
if (memp === null) throw "No destination array to $readmem " + strfn;
if (memp.length < data.length) throw "Destination array too small to $readmem " + strfn;
for (i=0; i<data.length; i++)
memp[i] = data[i];
}
// SIMULATOR BASE

4
src/worker/verilator2js.ts
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@ -128,6 +128,10 @@ function translateFunction(text : string) : string {
text = text.replace(/^#/gm, '//#');
text = text.replace(/VL_LIKELY/g, '!!');
text = text.replace(/VL_UNLIKELY/g, '!!');
// for memread
text = text.replace(/VL_SIGW[(](\w+),(\d+),(\d+),(\d+)[)]/g, 'var $1 = new Uint32Array($4)');
// convert VL_ULL() 64-bits into an array of two 32-bits
text = text.replace(/VL_ULL[(]0x([0-9a-f]+?)([0-9a-f]{8})[)]/g, '[0x$2, 0x$1]');
//[%0t] %Error: scoreboard.v:53: Assertion failed in %Nscoreboard_top.scoreboard_gen: reset 64 -935359306 Vscoreboard_top
text = text.replace(/Verilated::(\w+)Error/g, 'console.log');
text = text.replace(/vlSymsp.name[(][)]/g, '"'+moduleName+'"');

23
src/worker/workermain.ts
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@ -1563,28 +1563,6 @@ function compileInlineASM(code:string, platform, options, errors, asmlines) {
return code;
}
// convert $readmem(bh) to array assigns
function compileReadmemStmts(code, errors) {
var re3 = /\$readmem([bh])\("(.+?)",\s*(\w+)\)/gmi;
return code.replace(re3, function(_s,type,path,mem,index) {
var datafile = getWorkFileAsString(path);
if (datafile) {
var lines = datafile.split('\n');
var out = '';
for (var i=0; i<lines.length; i++) {
var line = lines[i].trim();
if (line !== '') {
out += mem + '[' + i + ']=\'' + type + line + ';'
}
}
return out;
} else {
errors.push({line:0, msg:"Could not load $readmem file '"+path+'"'});
return "";
}
});
}
function compileVerilator(step:BuildStep) {
loadNative("verilator_bin");
loadGen("worker/verilator2js");
@ -1610,7 +1588,6 @@ function compileVerilator(step:BuildStep) {
populateFiles(step, FS, {
mainFilePath:step.path,
processFn:(code) => {
code = compileReadmemStmts(code, errors);
code = compileInlineASM(code, platform, step, errors, asmlines);
return code;
}