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ZXHawk: modifications to UPD sense interrupt status instruction

This commit is contained in:
Asnivor 2018-05-01 08:03:14 +01:00
parent a7bf8e4ca3
commit 451d5654ce
1 changed files with 4 additions and 2 deletions
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6
BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Hardware/Disk/NECUPD765.FDC.cs
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@ -2669,7 +2669,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
{
// interrupt has been raised for this drive
// acknowledge
ActiveDrive.SeekStatus = SEEK_INTACKNOWLEDGED;
ActiveDrive.SeekStatus = SEEK_IDLE;// SEEK_INTACKNOWLEDGED;
// result length 2
ResLength = 2;
@ -2680,6 +2680,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
// second byte is the current track id
ResBuffer[1] = ActiveDrive.CurrentTrackID;
}
/*
else if (ActiveDrive.SeekStatus == SEEK_INTACKNOWLEDGED)
{
// DriveA interrupt has already been acknowledged
@ -2689,7 +2690,8 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
Status0 = 192;
ResBuffer[0] = Status0;
}
else if (ActiveDrive.SeekStatus == SEEK_IDLE)
*/
else //if (ActiveDrive.SeekStatus == SEEK_IDLE)
{
// SIS with no interrupt
ResLength = 1;