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

Added my first PDP-11 add-on device component (PC11)

Browse source
This commit is contained in:
Jeff Parsons 2016-10-15 16:32:59 -07:00 • committed by Jeff Parsons
commit 0f4cbd6e7b
27 changed files with 1219 additions and 388 deletions
Download patch file Download diff file Expand all files Collapse all files

2
modules/pdp11/lib/debugger.js
View file

@ -1644,7 +1644,7 @@ if (DEBUGGER) {
if (cpu.isRunning()) {
cpu.setPC(this.cpu.getLastPC());
this.stopCPU();
return true;
throw -1; // TODO: Review the appropriate-ness of throwing a bogus vector number in order to immediately stop the instruction
}
return false;
};

17
modules/pdp11/lib/defines.js
View file

@ -425,6 +425,9 @@ var PDP11 = {
LKS: 0o177546, // KW11-L Clock Status
PRS: 0o177550, // PC11/PR11 Reader Status Register
PRB: 0o177552, // PC11/PR11 Reader Buffer Register
RCSR: 0o177560, // Display Terminal: Receiver Status Register
RBUF: 0o177562, // Display Terminal: Receiver Data Buffer Register
XCSR: 0o177564, // Display Terminal: Transmitter Status Register
@ -507,6 +510,20 @@ var PDP11 = {
SL: 0o177774, // Stack Limit Register
PSW: 0o177776 // 777776 17777776 0x3FFFFE Processor Status Word
},
PC11: { // High Speed Reader & Punch (PR11 is a Reader-only unit)
PRS: {
RE: 0x0001, // Reader Enable (W/O)
RIE: 0x0040, // Reader Interrupt Enable (allows the DONE and ERROR bits to trigger an interrupt)
DONE: 0x0080, // Done (R/O)
BUSY: 0x0800, // Busy (R/O)
ERROR: 0x8000, // Error (R/O)
CLEAR: 0x08C0, // bits cleared on INIT
WMASK: 0x0041 // bits writable
},
PRB: {
MASK: 0x00FF // Data
}
},
DL11: { // Serial Line Interface (program compatible with the KL11 for control of console teleprinters)
PRI: 4,
RVEC: 0o60,

62
modules/pdp11/lib/device.js
View file

@ -39,6 +39,7 @@ if (NODE) {
var State = require("../../shared/lib/state");
var BusPDP11 = require("./bus");
var MessagesPDP11 = require("./messages");
var PC11 = require("./pc11");
}
/**
@ -137,6 +138,31 @@ DevicePDP11.prototype.initBus = function(cmp, bus, cpu, dbg)
this.setReady();
};
/**
* reset()
*
* @this {DevicePDP11}
*/
DevicePDP11.prototype.reset = function()
{
this.console.misc = (this.console.misc & ~0x77) | 0x14; // kernel 16 bit
this.kw11.lks = 0;
};
/**
* kw11_interrupt()
*
* @this {DevicePDP11}
*/
DevicePDP11.prototype.kw11_interrupt = function()
{
this.kw11.lks |= PDP11.KW11.LKS.MON;
if (this.kw11.lks & PDP11.KW11.LKS.IE) {
this.cpu.setTrigger(this.kw11.trigger);
this.cpu.setTimer(this.kw11.timer, 1000/60);
}
};
/**
* readLKS(addr)
*
@ -1028,33 +1054,6 @@ DevicePDP11.prototype.writeIgnored = function(data, addr)
}
};
/**
* kw11_interrupt()
*
* @this {DevicePDP11}
*/
DevicePDP11.prototype.kw11_interrupt = function()
{
this.kw11.lks |= PDP11.KW11.LKS.MON;
if (this.kw11.lks & PDP11.KW11.LKS.IE) {
this.cpu.setTrigger(this.kw11.trigger);
this.cpu.setTimer(this.kw11.timer, 1000/60);
}
};
/**
* reset()
*
* Formerly reset_iopage().
*
* @this {DevicePDP11}
*/
DevicePDP11.prototype.reset = function()
{
this.console.misc = (this.console.misc & ~0x77) | 0x14; // kernel 16 bit
this.kw11.lks = 0;
};
/*
* ES6 ALERT: As you can see below, I've finally started using computed property names.
*/
@ -1220,11 +1219,16 @@ DevicePDP11.init = function()
{
var aeDevice = Component.getElementsByClass(document, PDP11.APPCLASS, "device");
for (var iDevice = 0; iDevice < aeDevice.length; iDevice++) {
var device;
var eDevice = aeDevice[iDevice];
var parmsDevice = Component.getComponentParms(eDevice);
switch(parmsDevice['name']) {
switch(parmsDevice['type']) {
case 'default':
var device = new DevicePDP11(parmsDevice);
device = new DevicePDP11(parmsDevice);
Component.bindComponentControls(device, eDevice, PDP11.APPCLASS);
break;
case 'pc11':
device = new PC11(parmsDevice);
Component.bindComponentControls(device, eDevice, PDP11.APPCLASS);
break;
}

236
modules/pdp11/lib/pc11.js Normal file
View file

@ -0,0 +1,236 @@
/**
* @fileoverview Implements the PC11 High-Speed Paper Tape Reader/Punch
* @author <a href="mailto:Jeff@pcjs.org">Jeff Parsons</a>
* @copyright © Jeff Parsons 2012-2016
*
* This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.
*
* PCjs is free software: you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with PCjs. If not,
* see <http://www.gnu.org/licenses/gpl.html>.
*
* You are required to include the above copyright notice in every modified copy of this work
* and to display that copyright notice when the software starts running; see COPYRIGHT in
* <http://pcjs.org/modules/shared/lib/defines.js>.
*
* Some PCjs files also attempt to load external resource files, such as character-image files,
* ROM files, and disk image files. Those external resource files are not considered part of PCjs
* for purposes of the GNU General Public License, and the author does not claim any copyright
* as to their contents.
*/
"use strict";
if (NODE) {
var str = require("../../shared/lib/strlib");
var web = require("../../shared/lib/weblib");
var Component = require("../../shared/lib/component");
var State = require("../../shared/lib/state");
var PDP11 = require("./defines");
var MessagesPDP11 = require("./messages");
}
/**
* PC11(parms)
*
* @constructor
* @extends Component
* @param {Object} parms
*/
function PC11(parms)
{
Component.call(this, "PC11", parms, PC11);
/*
* TODO: Technically, the PC11 should have a timer that "clocks" data from the abReader buffer into the
* PRB register at the appropriate rate (300 CPS for the high-speed version, 10 CPS for the low-speed version).
*/
this.prs = 0; // PRS register
this.prb = 0; // PRB register
this.iReader = 0; // buffer index
this.abReader = []; // buffer for the PRB register
}
Component.subclass(PC11);
/**
* setBinding(sType, sBinding, control, sValue)
*
* @this {PC11}
* @param {string|null} sType is the type of the HTML control (eg, "button", "textarea", "register", "flag", "rled", etc)
* @param {string} sBinding is the value of the 'binding' parameter stored in the HTML control's "data-value" attribute (eg, "buffer")
* @param {Object} control is the HTML control DOM object (eg, HTMLButtonElement)
* @param {string} [sValue] optional data value
* @return {boolean} true if binding was successful, false if unrecognized binding request
*/
PC11.prototype.setBinding = function(sType, sBinding, control, sValue)
{
return false;
};
/**
* initBus(cmp, bus, cpu, dbg)
*
* @this {PC11}
* @param {ComputerPDP11} cmp
* @param {BusPDP11} bus
* @param {CPUStatePDP11} cpu
* @param {DebuggerPDP11} dbg
*/
PC11.prototype.initBus = function(cmp, bus, cpu, dbg)
{
this.cmp = cmp;
this.bus = bus;
this.cpu = cpu;
this.dbg = dbg;
this.setReady();
};
/**
* powerUp(data, fRepower)
*
* @this {PC11}
* @param {Object|null} data
* @param {boolean} [fRepower]
* @return {boolean} true if successful, false if failure
*/
PC11.prototype.powerUp = function(data, fRepower)
{
if (!fRepower) {
if (!data || !this.restore) {
this.reset();
} else {
if (!this.restore(data)) return false;
}
}
return true;
};
/**
* powerDown(fSave, fShutdown)
*
* @this {PC11}
* @param {boolean} [fSave]
* @param {boolean} [fShutdown]
* @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
*/
PC11.prototype.powerDown = function(fSave, fShutdown)
{
return fSave? this.save() : true;
};
/**
* reset()
*
* @this {PC11}
*/
PC11.prototype.reset = function()
{
this.prs &= ~PDP11.PC11.PRS.CLEAR;
this.prb = 0;
this.iReader = 0;
this.abReader = [];
};
/**
* save()
*
* This implements save support for the PC11 component.
*
* @this {PC11}
* @return {Object}
*/
PC11.prototype.save = function()
{
var state = new State(this);
return state.data();
};
/**
* restore(data)
*
* This implements restore support for the PC11 component.
*
* @this {PC11}
* @param {Object} data
* @return {boolean} true if successful, false if failure
*/
PC11.prototype.restore = function(data)
{
return true;
};
/**
* readPRS(addr)
*
* @this {PC11}
* @param {number} addr (eg, PDP11.UNIBUS.PRS or 177550)
* @return {number}
*/
PC11.prototype.readPRS = function(addr)
{
return this.prs;
};
/**
* writePRS(data, addr)
*
* @this {PC11}
* @param {number} data
* @param {number} addr (eg, PDP11.UNIBUS.PRS or 177550)
*/
PC11.prototype.writePRS = function(data, addr)
{
if (data & PDP11.PC11.PRS.RE) {
if (this.prs & PDP11.PC11.PRS.ERROR) {
data &= ~PDP11.PC11.PRS.RE;
// if (this.prs & PDP11.PC11.PRS.RIE) {
// TODO: Generate an interrupt
// }
} else {
this.prs &= ~PDP11.PC11.PRS.DONE;
this.prs |= PDP11.PC11.PRS.BUSY;
}
}
this.prs = (this.prs & ~PDP11.PC11.PRS.WMASK) | (data & PDP11.PC11.PRS.WMASK);
};
/**
* readPRB(addr)
*
* @this {PC11}
* @param {number} addr (eg, PDP11.UNIBUS.PRB or 177552)
* @return {number}
*/
PC11.prototype.readPRB = function(addr)
{
return this.prb;
};
/**
* writePRB(data, addr)
*
* @this {PC11}
* @param {number} data
* @param {number} addr (eg, PDP11.UNIBUS.PRB or 177552)
*/
PC11.prototype.writePRB = function(data, addr)
{
};
/*
* ES6 ALERT: As you can see below, I've finally started using computed property names.
*/
PC11.UNIBUS_IOTABLE = {
[PDP11.UNIBUS.PRS]: /* 177550 */ [null, null, PC11.prototype.readPRS, PC11.prototype.writePRS, "PRS"],
[PDP11.UNIBUS.PRB]: /* 177552 */ [null, null, PC11.prototype.readPRB, PC11.prototype.writePRB, "PRB"]
};
if (NODE) module.exports = PC11;

6
modules/shared/templates/components.xsl
View file

@ -714,16 +714,16 @@
<xsl:template match="device[not(@ref)]">
<xsl:param name="machine" select="''"/>
<xsl:variable name="name">
<xsl:variable name="type">
<xsl:choose>
<xsl:when test="@name"><xsl:value-of select="@name"/></xsl:when>
<xsl:when test="@type"><xsl:value-of select="@type"/></xsl:when>
<xsl:otherwise/>
</xsl:choose>
</xsl:variable>
<xsl:call-template name="component">
<xsl:with-param name="machine" select="$machine"/>
<xsl:with-param name="class">device</xsl:with-param>
<xsl:with-param name="parms">,name:'<xsl:value-of select="$name"/>'</xsl:with-param>
<xsl:with-param name="parms">,type:'<xsl:value-of select="$type"/>'</xsl:with-param>
</xsl:call-template>
</xsl:template>