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The FDC SENSE INTERRUPT STATUS command now once again returns bad command if neither FINTR nor reset stat are set and the FDC is not in PCjr mode, fixes Red Had Linux 2.0 hang.

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OBattler
2018-02-02 05:34:39 +01:00
parent e3f325f322
commit a756f3c5e1
1 changed files with 8 additions and 5 deletions
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13
src/floppy/fdc.c
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@@ -9,7 +9,7 @@
* Implementation of the NEC uPD-765 and compatible floppy disk
* controller.
*
* Version: @(#)fdc->c 1.0.12 2018/02/02
* Version: @(#)fdc->c 1.0.13 2018/02/02
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
@@ -862,10 +862,13 @@ fdc_write(uint16_t addr, uint8_t val, void *priv)
fdc->stat |= 0x90;
break;
case 0x08: /*Sense interrupt status*/
fdc_log("fdc->fintr = %i, fdc->reset_stat = %i\n", fdc->fintr, fdc->reset_stat);
fdc->lastdrive = fdc->drive;
fdc->pos = 0;
fdc_sis(fdc);
if (fdc->fintr || fdc->reset_stat || (fdc->flags & FDC_FLAG_PCJR)) {
fdc_log("fdc->fintr = %i, fdc->reset_stat = %i\n", fdc->fintr, fdc->reset_stat);
fdc->lastdrive = fdc->drive;
fdc->pos = 0;
fdc_sis(fdc);
} else
fdc_bad_command(fdc);
break;
case 0x0a: /*Read sector ID*/
fdc->pnum = 0;