Retro/pcjs
Watch
1
0
Fork
You've already forked pcjs
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Support for RX11 diskette drives has been added, but is still untested

Browse source
This commit is contained in:
Jeff Parsons 2017-02-02 15:14:13 -08:00 • committed by Jeff Parsons
commit cacc2f7dad
32 changed files with 1531 additions and 660 deletions
Download patch file Download diff file Expand all files Collapse all files

38
modules/pdp11/lib/rl11.js
View file

@ -227,13 +227,13 @@ class RL11 extends DriveController {
*/
readData(drive, iCylinder, iHead, iSector, nWords, addr, inc, fCheck, done)
{
var err = 0;
var nError = 0;
var checksum = 0;
var disk = drive.disk;
var sector = null, ibSector;
if (!disk) {
err = RL11.ERRC.HNF; // TODO: Review
nError = RL11.ERRC.HNF; // TODO: Review
nWords = 0;
}
@ -242,14 +242,14 @@ class RL11 extends DriveController {
if (!sector) {
sector = disk.seek(iCylinder, iHead, iSector + 1);
if (!sector) {
err = RL11.ERRC.HNF;
nError = RL11.ERRC.HNF;
break;
}
ibSector = 0;
}
var b0, b1, data;
if ((b0 = disk.read(sector, ibSector++)) < 0 || (b1 = disk.read(sector, ibSector++)) < 0) {
err = RL11.ERRC.HNF;
nError = RL11.ERRC.HNF;
break;
}
/*
@ -267,7 +267,7 @@ class RL11 extends DriveController {
}
}
if (this.bus.checkFault()) {
err = RL11.ERRC.NXM;
nError = RL11.ERRC.NXM;
break;
}
addr += 2;
@ -280,7 +280,7 @@ class RL11 extends DriveController {
if (++iHead >= disk.nHeads) {
iHead = 0;
if (++iCylinder >= disk.nCylinders) {
err = RL11.ERRC.HNF;
nError = RL11.ERRC.HNF;
break;
}
}
@ -292,7 +292,7 @@ class RL11 extends DriveController {
console.log("checksum: " + (checksum|0));
}
return done? done(err, iCylinder, iHead, iSector, nWords, addr) : err;
return done? done(nError, iCylinder, iHead, iSector, nWords, addr) : nError;
}
/**
@ -312,13 +312,13 @@ class RL11 extends DriveController {
*/
writeData(drive, iCylinder, iHead, iSector, nWords, addr, inc, fCheck, done)
{
var err = 0;
var nError = 0;
var checksum = 0;
var disk = drive.disk;
var sector = null, ibSector;
if (!disk) {
err = RL11.ERRC.HNF; // TODO: Review
nError = RL11.ERRC.HNF; // TODO: Review
nWords = 0;
}
@ -331,7 +331,7 @@ class RL11 extends DriveController {
*/
var data = this.bus.getWordDirect(this.cpu.mapUnibus(addr));
if (this.bus.checkFault()) {
err = RL11.ERRC.NXM;
nError = RL11.ERRC.NXM;
break;
}
if (DEBUG && this.messageEnabled(MessagesPDP11.WRITE)) {
@ -348,13 +348,13 @@ class RL11 extends DriveController {
if (!sector) {
sector = disk.seek(iCylinder, iHead, iSector + 1, true);
if (!sector) {
err = RL11.ERRC.HNF;
nError = RL11.ERRC.HNF;
break;
}
ibSector = 0;
}
if (!disk.write(sector, ibSector++, data & 0xff) || !disk.write(sector, ibSector++, data >> 8)) {
err = RL11.ERRC.HNF;
nError = RL11.ERRC.HNF;
break;
}
if (ibSector >= disk.cbSector) {
@ -364,7 +364,7 @@ class RL11 extends DriveController {
if (++iHead >= disk.nHeads) {
iHead = 0;
if (++iCylinder >= disk.nCylinders) {
err = RL11.ERRC.HNF;
nError = RL11.ERRC.HNF;
break;
}
}
@ -376,14 +376,14 @@ class RL11 extends DriveController {
console.log("checksum: " + (checksum|0));
}
return done? done(err, iCylinder, iHead, iSector, nWords, addr) : err;
return done? done(nError, iCylinder, iHead, iSector, nWords, addr) : nError;
}
/**
* doneReadWrite(err, iCylinder, iHead, iSector, nWords, addr)
* doneReadWrite(nError, iCylinder, iHead, iSector, nWords, addr)
*
* @this {RL11}
* @param {number} err
* @param {number} nError
* @param {number} iCylinder
* @param {number} iHead
* @param {number} iSector
@ -391,7 +391,7 @@ class RL11 extends DriveController {
* @param {number} addr
* @return {boolean}
*/
doneReadWrite(err, iCylinder, iHead, iSector, nWords, addr)
doneReadWrite(nError, iCylinder, iHead, iSector, nWords, addr)
{
this.regRLBA = addr & 0xffff;
this.regRLCS = (this.regRLCS & ~RL11.RLCS.BAE) | ((addr >> (16 - RL11.RLCS.SHIFT.BAE)) & RL11.RLCS.BAE);
@ -399,8 +399,8 @@ class RL11 extends DriveController {
this.regRLDA = (iCylinder << RL11.RLDA.SHIFT.RW_CA) | (iHead? RL11.RLDA.RW_HS : 0) | (iSector & RL11.RLDA.RW_SA);
this.tmpRLDA = this.regRLDA;
this.regRLMP = (0x10000 - nWords) & 0xffff;
if (err) {
this.regRLCS |= err | RL11.RLCS.ERR;
if (nError) {
this.regRLCS |= nError | RL11.RLCS.ERR;
}
return true;
}