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FDC workaround

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The Internal FDC is added when needed for AT machines too.
Some speculative "work" on the main FDC code
This commit is contained in:
Panagiotis
2021-02-07 17:27:14 +02:00
committed by GitHub
parent fbfde99b4a
commit a0a7ee67cc
12 changed files with 108 additions and 6 deletions
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2
src/floppy/fdc.c
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@@ -2326,7 +2326,7 @@ fdc_3f1_enable(fdc_t *fdc, int enable)
const device_t fdc_xt_device = {
"PC/XT Floppy Drive Controller",
0,
0,
FDC_FLAG_AT,
fdc_init,
fdc_close,
fdc_reset,

2
src/floppy/fdc_magitronic.c
View File

@@ -56,7 +56,7 @@ b215_init(const device_t *info)
rom_init(&dev->rom, ROM_B215, ROM_ADDR, 0x2000, 0x1fff, 0, MEM_MAPPING_EXTERNAL);
device_add(&fdc_at_device);
device_add(&fdc_xt_device);
return dev;
}

4
src/floppy/fdc_pii15xb.c
View File

@@ -54,7 +54,7 @@ MiniMicro 4 uses a Zilog Z0765A08PSC(Clone of the NEC 765)
MiniMicro 1 uses a National Semiconductor DP8473(Clone of the NEC 765 with additional NSC commands)
Issues:
MiniMicro 4 WON'T WORK with XT machines. This statement has to be confirmed by someone with the real card itself.
MiniMicro 4 works only with a few XT machines. This statement has to be confirmed by someone with the real card itself.
MiniMicro 4 also won't work with the XT FDC which the Zilog claims to be.
*/
@@ -77,7 +77,7 @@ MiniMicro 4 also won't work with the XT FDC which the Zilog claims to be.
#include <86box/fdc_ext.h>
#define DTK_VARIANT ((info->local == 158) ? ROM_PII_158B : ROM_PII_151B)
#define DTK_CHIP ((info->local == 158) ? &fdc_at_device : &fdc_dp8473_device)
#define DTK_CHIP ((info->local == 158) ? &fdc_xt_device : &fdc_dp8473_device)
#define BIOS_ADDR (uint32_t)(device_get_config_hex20("bios_addr") & 0x000fffff)
#define ROM_PII_151B L"roms/floppy/dtk/pii-151b.rom"
#define ROM_PII_158B L"roms/floppy/dtk/pii-158b.rom"