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Enabled smooth scrolling, connected SerialPort UART transmitter status to the ChipSet FLAGS buffer (matching how the Keyboard UART transmitter status is connected), enabled binding of terminal I/O to the Control Panel output window (if any), and added simulation of received data at the programmed baud rate (but a better solution has been noted and needs to be implemented)

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This commit is contained in:
Jeff Parsons 2016-08-16 09:34:41 -07:00
commit cf24023d5d
8 changed files with 609 additions and 477 deletions
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84
modules/pc8080/lib/chipset.js
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@ -220,16 +220,16 @@ ChipSet.SI1978 = {
*/
ChipSet.VT100 = {
MODEL: 100.0,
FLAGS_BUFFER: {
FLAGS: {
PORT: 0x42, // read-only
XMIT: 0x01, // PUSART transmit buffer empty if SET
UART_XMIT: 0x01, // PUSART transmit buffer empty if SET
NO_AVO: 0x02, // AVO present if CLEAR
NO_GFX: 0x04, // VT125 graphics board present if CLEAR
OPTION: 0x08, // OPTION present if SET
NO_EVEN: 0x10, // EVEN FIELD active if CLEAR
NVR_DATA: 0x20, // NVR DATA if SET
NVR_CLK: 0x40, // NVR CLOCK if SET
KBD_XMIT: 0x80 // KBD XMIT BUFFER empty if SET
KBD_XMIT: 0x80 // KBD transmit buffer empty if SET
},
BRIGHTNESS: {
PORT: 0x42, // write-only
@ -424,6 +424,7 @@ ChipSet.prototype.initBus = function(cmp, bus, cpu, dbg)
this.dbg = dbg;
this.cmp = cmp;
this.kbd = /** @type {Keyboard} */ (cmp.getMachineComponent("Keyboard"));
this.serial = /** @type {SerialPort} */ (cmp.getMachineComponent("SerialPort"));
this.video = /** @type {Video} */ (cmp.getMachineComponent("Video"));
bus.addPortInputTable(this, this.config.portsInput);
bus.addPortOutputTable(this, this.config.portsOutput);
@ -474,7 +475,7 @@ ChipSet.SI1978.INIT = [
ChipSet.VT100.INIT = [
[
ChipSet.VT100.BRIGHTNESS.INIT,
ChipSet.VT100.FLAGS_BUFFER.NO_AVO | ChipSet.VT100.FLAGS_BUFFER.NO_GFX
ChipSet.VT100.FLAGS.NO_AVO | ChipSet.VT100.FLAGS.NO_GFX
],
[
ChipSet.VT100.DC011.INITCOLS,
@ -531,7 +532,7 @@ ChipSet.prototype.save = function()
state.set(0, [this.bStatus0, this.bStatus1, this.bStatus2, this.wShiftData, this.bShiftCount, this.bSound1, this.bSound2]);
break;
case ChipSet.VT100.MODEL:
state.set(0, [this.bBrightness, this.bFlagsBuffer]);
state.set(0, [this.bBrightness, this.bFlags]);
state.set(1, [this.bDC011Cols, this.bDC011Rate]);
state.set(2, [this.bDC012Scroll, this.bDC012Blink, this.bDC012Reverse, this.bDC012Attr]);
state.set(3, [this.dNVRAddr, this.wNVRData, this.bNVRLatch, this.bNVROut, this.aNVRWords]);
@ -555,31 +556,31 @@ ChipSet.prototype.restore = function(data)
if (data && (a = data[0]) && a.length) {
switch(this.config.MODEL) {
case ChipSet.SI1978.MODEL:
this.bStatus0 = a[0];
this.bStatus1 = a[1];
this.bStatus2 = a[2];
this.wShiftData = a[3];
this.bShiftCount = a[4];
this.bSound1 = a[5];
this.bSound2 = a[6];
this.bStatus0 = a[0];
this.bStatus1 = a[1];
this.bStatus2 = a[2];
this.wShiftData = a[3];
this.bShiftCount = a[4];
this.bSound1 = a[5];
this.bSound2 = a[6];
return true;
case ChipSet.VT100.MODEL:
this.bBrightness = a[0];
this.bFlagsBuffer = a[1];
this.bBrightness = a[0];
this.bFlags = a[1];
a = data[1];
this.bDC011Cols = a[0];
this.bDC011Rate = a[1];
this.bDC011Cols = a[0];
this.bDC011Rate = a[1];
a = data[2];
this.bDC012Scroll = a[0];
this.bDC012Blink = a[1];
this.bDC012Scroll = a[0];
this.bDC012Blink = a[1];
this.bDC012Reverse = a[2];
this.bDC012Attr = a[3];
this.bDC012Attr = a[3];
a = data[3];
this.dNVRAddr = a[0]; // 20-bit address
this.wNVRData = a[1]; // 14-bit word
this.bNVRLatch = a[2]; // 1 byte
this.bNVROut = a[3]; // 1 bit
this.aNVRWords = a[4]; // 100 14-bit words
this.dNVRAddr = a[0]; // 20-bit address
this.wNVRData = a[1]; // 14-bit word
this.bNVRLatch = a[2]; // 1 byte
this.bNVROut = a[3]; // 1 bit
this.aNVRWords = a[4]; // 100 14-bit words
return true;
}
}
@ -883,36 +884,40 @@ ChipSet.prototype.doNVRCommand = function()
};
/**
* inVT100FlagsBuffer(port, addrFrom)
* inVT100Flags(port, addrFrom)
*
* @this {ChipSet}
* @param {number} port (0x42)
* @param {number} [addrFrom] (not defined if the Debugger is trying to read the specified port)
* @return {number} simulated port value
*/
ChipSet.prototype.inVT100FlagsBuffer = function(port, addrFrom)
ChipSet.prototype.inVT100Flags = function(port, addrFrom)
{
/*
* The NVR_CLK bit is driven by LBA7 (ie, bit 7 from Line Buffer Address generation); see the DC011 discussion above.
*/
var b = this.bFlagsBuffer;
b &= ~ChipSet.VT100.FLAGS_BUFFER.NVR_CLK;
var b = this.bFlags;
b &= ~ChipSet.VT100.FLAGS.NVR_CLK;
if (this.getVT100LBA(7)) {
b |= ChipSet.VT100.FLAGS_BUFFER.NVR_CLK;
if (b != this.bFlagsBuffer) {
b |= ChipSet.VT100.FLAGS.NVR_CLK;
if (b != this.bFlags) {
this.doNVRCommand();
}
}
b &= ~ChipSet.VT100.FLAGS_BUFFER.NVR_DATA;
b &= ~ChipSet.VT100.FLAGS.NVR_DATA;
if (this.bNVROut) {
b |= ChipSet.VT100.FLAGS_BUFFER.NVR_DATA;
b |= ChipSet.VT100.FLAGS.NVR_DATA;
}
b &= ~ChipSet.VT100.FLAGS_BUFFER.KBD_XMIT;
if (this.kbd && !this.kbd.checkBusy()) {
b |= ChipSet.VT100.FLAGS_BUFFER.KBD_XMIT;
b &= ~ChipSet.VT100.FLAGS.KBD_XMIT;
if (this.kbd && this.kbd.isTransmitterReady()) {
b |= ChipSet.VT100.FLAGS.KBD_XMIT;
}
this.bFlagsBuffer = b;
this.printMessageIO(port, null, addrFrom, "FLAGS.BUFFER", b);
b &= ~ChipSet.VT100.FLAGS.UART_XMIT;
if (this.serial && this.serial.isTransmitterReady()) {
b |= ChipSet.VT100.FLAGS.UART_XMIT;
}
this.bFlags = b;
this.printMessageIO(port, null, addrFrom, "FLAGS", b);
return b;
};
@ -967,6 +972,7 @@ ChipSet.prototype.outVT100DC012 = function(port, b, addrFrom)
break;
case 0x1:
this.bDC012Scroll = (this.bDC012Scroll & ~0xC) | (bOpt << 2);
if (this.video) this.video.updateScrollOffset(this.bDC012Scroll);
break;
case 0x2:
switch(bOpt) {
@ -1013,7 +1019,7 @@ ChipSet.prototype.outVT100DC011 = function(port, b, addrFrom)
this.bDC011Cols = b;
if (this.video) {
var nCols = (this.bDC011Cols == ChipSet.VT100.DC011.COLS132? 132 : 80);
var nRows = (nCols > 80 && (this.bFlagsBuffer & ChipSet.VT100.FLAGS_BUFFER.NO_AVO)? 14 : 24);
var nRows = (nCols > 80 && (this.bFlags & ChipSet.VT100.FLAGS.NO_AVO)? 14 : 24);
this.video.updateDimensions(nCols, nRows);
}
}
@ -1039,7 +1045,7 @@ ChipSet.SI1978.portsOutput = {
};
ChipSet.VT100.portsInput = {
0x42: ChipSet.prototype.inVT100FlagsBuffer
0x42: ChipSet.prototype.inVT100Flags
};
ChipSet.VT100.portsOutput = {