Added another example of an I/O address handler (XCSR)
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Jeff
Jeff Parsons
parent
da617d454d
commit
a451bbc5bc
6 changed files with 391 additions and 334 deletions
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@ -204,7 +204,7 @@ DevicePDP11.prototype.initBus = function(cmp, bus, cpu, dbg)
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* readPSW(addr)
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*
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* @this {DevicePDP11}
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* @param {number} addr (eg, PDP11.UNIBUS.PSW)
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* @param {number} addr (eg, 177776)
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* @return {number}
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*/
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DevicePDP11.prototype.readPSW = function(addr)
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@ -217,7 +217,7 @@ DevicePDP11.prototype.readPSW = function(addr)
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*
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* @this {DevicePDP11}
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* @param {number} data
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* @param {number} addr (ie, PDP11.UNIBUS.PSW)
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* @param {number} addr (eg, 177776)
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*/
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DevicePDP11.prototype.writePSW = function(data, addr)
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{
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@ -226,6 +226,43 @@ DevicePDP11.prototype.writePSW = function(data, addr)
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this.cpu.opFlags |= PDP11.OPFLAG.SKIP_FLAGS;
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};
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/**
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* readXCSR(addr)
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*
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* @this {DevicePDP11}
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* @param {number} addr (eg, 177564)
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* @return {number}
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*/
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DevicePDP11.prototype.readXCSR = function(addr)
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{
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return this.tty.xcsr;
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};
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/**
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* writeXCSR(data, addr)
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*
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* @this {DevicePDP11}
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* @param {number} data
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* @param {number} addr (eg, 177564)
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*/
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DevicePDP11.prototype.writeXCSR = function(data, addr)
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{
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/*
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* If the device is READY and INT_ENABLE is transitioning to *set*, generate an interrupt.
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*/
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var device = this;
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if ((this.tty.xcsr & (PDP11.DL11.XCSR.READY | PDP11.DL11.XCSR.INT_ENABLE)) == PDP11.DL11.XCSR.READY && (data & PDP11.DL11.XCSR.INT_ENABLE)) {
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this.cpu.interrupt(PDP11.DL11.DELAY, PDP11.DL11.PRI, PDP11.DL11.VEC, function() {
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device.tty.xcsr |= PDP11.DL11.XCSR.READY;
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return !!(device.tty.xcsr & PDP11.DL11.XCSR.INT_ENABLE);
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});
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}
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/*
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* In any event, update all bits from data *except* for READY.
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*/
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this.tty.xcsr = (this.tty.xcsr & PDP11.DL11.XCSR.READY) | (data & ~PDP11.DL11.XCSR.READY);
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};
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/**
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* rk11_go()
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*
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@ -295,7 +332,7 @@ DevicePDP11.prototype.rk11_go = function()
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break;
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}
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rk11.rkds = (drive << 13) | (rk11.rkds & 0x1ff0) | ((rk11.rkda % 9) & 0xf);
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this.cpu.interrupt(20, 5 << 5, 0x90, /*0220*/ function() {
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this.cpu.interrupt(20, 5, 0x90, /*0220*/ function() {
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rk11.rkcs = (rk11.rkcs & 0xfffe) | 0x80; // turn off go & set done
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return !!(rk11.rkcs & 0x40);
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});
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@ -327,7 +364,7 @@ DevicePDP11.prototype.rk11_end = function(err, meta, block, address, count)
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rk11.rkcs |= 0xc000; // err
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break;
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}
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this.cpu.interrupt(20, 5 << 5, 0x90, /*0220*/ function() {
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this.cpu.interrupt(20, 5, 0x90, /*0220*/ function() {
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rk11.rkcs = (rk11.rkcs & 0xfffe) | 0x80; // turn off go & set done
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return !!(rk11.rkcs & 0x40);
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});
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@ -408,7 +445,7 @@ DevicePDP11.prototype.rl11_go = function()
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case 7: // Read data without header check
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break;
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}
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this.cpu.interrupt(20, 5 << 5, 0x70, /*0160*/ function() {
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this.cpu.interrupt(20, 5, 0x70, /*0160*/ function() {
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rl11.csr |= 0x81; // turn off go & set ready
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return !!(rl11.csr & 0x40);
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});
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@ -442,7 +479,7 @@ DevicePDP11.prototype.rl11_end = function(err, meta, block, address, count)
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rl11.csr |= 0xa000; // NXM
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break;
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}
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this.cpu.interrupt(20, 5 << 5, 0x70, /*0160*/ function() {
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this.cpu.interrupt(20, 5, 0x70, /*0160*/ function() {
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rl11.csr |= 0x81; // turn off go & set ready
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return !!(rl11.csr & 0x40);
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});
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@ -551,7 +588,7 @@ DevicePDP11.prototype.rp11_go = function(drive)
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default:
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break;
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}
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this.cpu.interrupt(3, 5 << 5, 0xAC, /*0254*/ function() {
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this.cpu.interrupt(3, 5, 0xAC, /*0254*/ function() {
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rp11.rpcs1 = (rp11.rpcs1 & 0xfffe) | 0x80; // Turn go off and ready on
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rp11.rpds[drive] |= 0x80; // ATA
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return !!(rp11.rpcs1 & 0x40);
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@ -594,7 +631,7 @@ DevicePDP11.prototype.rp11_end = function(err, meta, block, address, count)
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rp11.rpcs1 |= 0xc000; // set SC & TRE
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break;
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}
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this.cpu.interrupt(20, 5 << 5, 0xAC, /*0254*/ function() {
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this.cpu.interrupt(20, 5, 0xAC, /*0254*/ function() {
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rp11.rpds[meta.drive] |= 0x80;
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rp11.rpcs1 = (rp11.rpcs1 & 0xfffe) | 0x80; // Turn go off and ready on
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return !!(rp11.rpcs1 & 0x40);
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@ -610,7 +647,7 @@ DevicePDP11.prototype.kw11_interrupt = function()
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{
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this.kw11.csr |= 0x80;
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if (this.kw11.csr & 0x40) {
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this.cpu.interrupt(0, 6 << 5, 0x40 /*0100*/);
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this.cpu.interrupt(0, 6, 0x40 /*0100*/);
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}
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};
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@ -734,7 +771,7 @@ DevicePDP11.prototype.readData = function(meta, block, address, count)
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return;
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}
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for (word = 0; word < meta.blocksize && count > 0; word++) {
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if (this.cpu.writeWordByPhysical((meta.mapped? this.cpu.mapUnibus(address) : address), meta.cache[block][word]) < 0) {
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if (this.cpu.writeWordToPhysical((meta.mapped? this.cpu.mapUnibus(address) : address), meta.cache[block][word]) < 0) {
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meta.postProcess(2, meta, block, address, count); // NXM
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return;
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}
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@ -768,7 +805,7 @@ DevicePDP11.prototype.writeData = function(meta, block, address, count)
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}
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}
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for (word = 0; word < meta.blocksize && count > 0; word++) {
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data = this.cpu.readWordByPhysical((meta.mapped? this.cpu.mapUnibus(address) : address));
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data = this.cpu.readWordFromPhysical((meta.mapped? this.cpu.mapUnibus(address) : address));
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if (data < 0) {
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meta.postProcess(2, meta, block, address, count); // NXM
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return;
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@ -1057,7 +1094,7 @@ DevicePDP11.prototype.access = function(physicalAddress, data, byteFlag)
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tty.del = 0;
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}
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tty.xcsr &= ~0x80; /*0200*/
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cpu.interrupt(100, 4 << 5, 0x34, /*064*/ function() {
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cpu.interrupt(100, 4, 0x34, /*064*/ function() {
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tty.xcsr |= 0x80; /*0200*/
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return !!(tty.xcsr & 0x40); /*0100*/
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});
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@ -1065,20 +1102,20 @@ DevicePDP11.prototype.access = function(physicalAddress, data, byteFlag)
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result = 0;
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break;
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case 0x3FFF74: /*017777564*/ // console xcsr
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if (data < 0) {
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result = tty.xcsr;
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} else {
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result = this.insertData(tty.xcsr, physicalAddress, data, byteFlag);
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if (result >= 0) {
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if ((tty.xcsr & 0xC0) /*0300*/ == 0x80 /*0200*/&& (result & 0x40) /*0100*/) {
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cpu.interrupt(8, 4 << 5, 0x34, /*064*/ function() {
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tty.xcsr |= 0x80; /*0200*/
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return !!(tty.xcsr & 0x40); /*0100*/
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});
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}
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tty.xcsr = (tty.xcsr & 0x80) /*0200*/ | (result & ~0x80) /*0200*/;
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}
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}
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// if (data < 0) {
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// result = tty.xcsr;
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// } else {
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// result = this.insertData(tty.xcsr, physicalAddress, data, byteFlag);
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// if (result >= 0) {
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// if ((tty.xcsr & 0xC0) /*0300*/ == 0x80 /*0200*/&& (result & 0x40) /*0100*/) {
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// cpu.interrupt(8, 4, 0x34, /*064*/ function() {
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// tty.xcsr |= 0x80; /*0200*/
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// return !!(tty.xcsr & 0x40); /*0100*/
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// });
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// }
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// tty.xcsr = (tty.xcsr & 0x80) /*0200*/ | (result & ~0x80) /*0200*/;
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// }
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// }
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break;
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case 0x3FFF72: /*017777562*/ // console rbuf
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result = 0;
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@ -1089,7 +1126,7 @@ DevicePDP11.prototype.access = function(physicalAddress, data, byteFlag)
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if (tty.rbuf.length > 0) {
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setTimeout(function() {
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tty.rcsr |= 0x80; /*0200*/
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if (tty.rcsr & 0x40) /*0100*/ cpu.interrupt(40, 4 << 5, 0x30) /*060*/;
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if (tty.rcsr & 0x40) /*0100*/ cpu.interrupt(40, 4, 0x30) /*060*/;
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}, 50);
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}
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}
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@ -1182,7 +1219,7 @@ DevicePDP11.prototype.access = function(physicalAddress, data, byteFlag)
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this.rp11_go(idx);
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} else {
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if ((result & 0xc0) == 0xc0) {
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cpu.interrupt(0, 5 << 5, 0xAC) /*0254*/;
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cpu.interrupt(0, 5, 0xAC) /*0254*/;
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}
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}
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}
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@ -1409,7 +1446,12 @@ DevicePDP11.prototype.access = function(physicalAddress, data, byteFlag)
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* ES6 ALERT: As you can see below, I've finally started using computed property names.
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*/
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DevicePDP11.UNIBUS_TABLE = {
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[PDP11.UNIBUS.PSW]: [null, null, DevicePDP11.prototype.readPSW, DevicePDP11.prototype.writePSW]
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[PDP11.UNIBUS.PSW]: [
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null, null, DevicePDP11.prototype.readPSW, DevicePDP11.prototype.writePSW
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],
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[PDP11.UNIBUS.XCSR]: [
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null, null, DevicePDP11.prototype.readXCSR, DevicePDP11.prototype.writeXCSR
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]
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};
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/**
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