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Clean up the CPU/ChipSet interface, and get the PC8080 Video component ready to actually do something

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This commit is contained in:
Jeff Parsons 2016-05-01 10:13:43 -07:00
commit 8c5ab8d73b
19 changed files with 1210 additions and 993 deletions
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56
modules/pc8080/lib/chipset.js
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@ -68,7 +68,7 @@ function ChipSet(parmsChipSet)
Component.notice("Unrecognized ChipSet model: " + model);
}
this.model = ChipSet.MODELS[model];
this.model = ChipSet.MODELS[model] || ChipSet.SI_1978.MODEL;
this.bSwitches = this.parseDIPSwitches(parmsChipSet['swDIP']);
@ -276,7 +276,7 @@ ChipSet.prototype.reset = function()
this.bStatus0 = 0;
this.bStatus1 = 0;
this.bStatus2 = 0;
this.bShiftData = 0;
this.wShiftData = 0;
this.bShiftCount = 0;
this.bSound1 = this.bSound2 = 0;
};
@ -293,7 +293,7 @@ ChipSet.prototype.save = function()
{
var state = new State(this);
if (this.model == ChipSet.SI_1978.MODEL) {
state.set(0, [this.bStatus0, this.bStatus1, this.bStatus2, this.bShiftData, this.bShiftCount, this.bSound1, this.bSound2]);
state.set(0, [this.bStatus0, this.bStatus1, this.bStatus2, this.wShiftData, this.bShiftCount, this.bSound1, this.bSound2]);
}
return state.data();
};
@ -315,7 +315,7 @@ ChipSet.prototype.restore = function(data)
this.bStatus0 = a[0];
this.bStatus1 = a[1];
this.bStatus2 = a[2];
this.bShiftData = a[3];
this.wShiftData = a[3];
this.bShiftCount = a[4];
this.bSound1 = a[5];
this.bSound2 = a[6];
@ -323,6 +323,34 @@ ChipSet.prototype.restore = function(data)
return true;
};
/**
* start()
*
* Notification from the CPU that it's starting.
*
* @this {ChipSet}
*/
ChipSet.prototype.start = function()
{
/*
* Currently, all we (may) do with this notification is allow the speaker to make noise.
*/
};
/**
* stop()
*
* Notification from the CPU that it's stopping.
*
* @this {ChipSet}
*/
ChipSet.prototype.stop = function()
{
/*
* Currently, all we (may) do with this notification is prevent the speaker from making noise.
*/
};
/**
* inSIStatus0(port, addrFrom)
*
@ -378,7 +406,7 @@ ChipSet.prototype.inSIStatus2 = function(port, addrFrom)
*/
ChipSet.prototype.inSIShiftResult = function(port, addrFrom)
{
var b = ((this.bShiftData << this.bShiftCount) >> 8) & 0xff;
var b = (this.wShiftData >> (8 - this.bShiftCount)) & 0xff;
this.printMessageIO(port, null, addrFrom, "SHIFT.RESULT", b, true);
return b;
};
@ -422,7 +450,7 @@ ChipSet.prototype.outSISound1 = function(port, b, addrFrom)
ChipSet.prototype.outSIShiftData = function(port, b, addrFrom)
{
this.printMessageIO(port, b, addrFrom, "SHIFT.DATA", null, true);
this.bShiftData = b;
this.wShiftData = (b << 8) | (this.wShiftData >> 8);
};
/**
@ -439,6 +467,19 @@ ChipSet.prototype.outSISound2 = function(port, b, addrFrom)
this.bSound2 = b;
};
/**
* outSIWatchdog(port, b, addrFrom)
*
* @this {ChipSet}
* @param {number} port (0x06)
* @param {number} b
* @param {number} [addrFrom] (not defined if the Debugger is trying to write the specified port)
*/
ChipSet.prototype.outSIWatchdog = function(port, b, addrFrom)
{
this.printMessageIO(port, b, addrFrom, "WATCHDOG", null, true);
};
/*
* Port input notification tables
*/
@ -456,7 +497,8 @@ ChipSet.aPortOutput = {
0x02: ChipSet.prototype.outSIShiftCount,
0x03: ChipSet.prototype.outSISound1,
0x04: ChipSet.prototype.outSIShiftData,
0x05: ChipSet.prototype.outSISound2
0x05: ChipSet.prototype.outSISound2,
0x06: ChipSet.prototype.outSIWatchdog
};
/**