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The drives now once again poll the old way when FDC is in non-DMA mode, should fix floppies on PCjr.

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This commit is contained in:
OBattler
2019-10-09 16:42:25 +02:00
parent 4c5e2f1c8f
commit 85dcfc1d90
4 changed files with 20 additions and 3933 deletions
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9
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 1.0.19 2019/09/26
* Version: @(#)fdc.c 1.0.20 2019/10/09
*
* Authors: Miran Grca, <mgrca8@gmail.com>
* Sarah Walker, <tommowalker@tommowalker.co.uk>
@@ -248,6 +248,13 @@ fdc_is_mfm(fdc_t *fdc)
}
int
fdc_is_dma(fdc_t *fdc)
{
return ((fdc->flags & FDC_FLAG_PCJR) || !fdc->dma) ? 0 : 1;
}
void
fdc_request_next_sector_id(fdc_t *fdc)
{

13
src/floppy/fdc.h
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@@ -9,15 +9,15 @@
* Implementation of the NEC uPD-765 and compatible floppy disk
* controller.
*
* Version: @(#)fdc.h 1.0.6 2019/03/23
* Version: @(#)fdc.h 1.0.7 2019/10/09
*
* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
* Miran Grca, <mgrca8@gmail.com>
* Authors: Miran Grca, <mgrca8@gmail.com>
* Sarah Walker, <tommowalker@tommowalker.co.uk>
* Fred N. van Kempen, <decwiz@yahoo.com>
*
* Copyright 2018 Fred N. van Kempen.
* Copyright 2016-2018 Miran Grca.
* Copyright 2008-2018 Sarah Walker.
* Copyright 2016-2019 Miran Grca.
* Copyright 2008-2019 Sarah Walker.
* Copyright 2018,2019 Fred N. van Kempen.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -148,6 +148,7 @@ extern int fdc_get_drive(fdc_t *fdc);
extern int fdc_get_perp(fdc_t *fdc);
extern int fdc_get_format_n(fdc_t *fdc);
extern int fdc_is_mfm(fdc_t *fdc);
extern int fdc_is_dma(fdc_t *fdc);
extern double fdc_get_hut(fdc_t *fdc);
extern double fdc_get_hlt(fdc_t *fdc);
extern void fdc_request_next_sector_id(fdc_t *fdc);

7
src/floppy/fdd.c
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@@ -595,6 +595,7 @@ static void
fdd_poll(void *priv)
{
int drive, i;
uint64_t shift;
DRIVE *drv = (DRIVE *) priv;
drive = drv->id;
@@ -602,9 +603,11 @@ fdd_poll(void *priv)
if (drive >= FDD_NUM)
fatal("Attempting to poll floppy drive %i that is not supposed to be there\n", drive);
timer_advance_u64(&fdd_poll_time[drive], fdd_byteperiod(drive) << 5ULL);
shift = fdc_is_dma(fdd_fdc) ? 5ULL : 0ULL;
timer_advance_u64(&fdd_poll_time[drive], fdd_byteperiod(drive) << shift);
for (i = 0; i < 32; i++) {
shift = 1ULL << shift;
for (i = 0; i < shift; i++) {
if (drv->poll)
drv->poll(drive);

3924
src/floppy/fdd_86f - Cópia.c
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