PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
/*
|
2022-11-13 16:37:58 -05:00
|
|
|
* 86Box A hypervisor and IBM PC system emulator that specializes in
|
|
|
|
|
* running old operating systems and software designed for IBM
|
|
|
|
|
* PC systems and compatibles from 1981 through fairly recent
|
|
|
|
|
* system designs based on the PCI bus.
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
*
|
2022-11-13 16:37:58 -05:00
|
|
|
* This file is part of the 86Box distribution.
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
*
|
2022-11-13 16:37:58 -05:00
|
|
|
* Emulation of the SiS 85c401/85c402, 85c460, 85c461, and
|
|
|
|
|
* 85c407/85c471 chipsets.
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
*
|
|
|
|
|
*
|
2022-11-13 16:37:58 -05:00
|
|
|
*
|
|
|
|
|
* Authors: Miran Grca, <mgrca8@gmail.com>
|
|
|
|
|
*
|
2023-01-06 15:36:29 -05:00
|
|
|
* Copyright 2019-2020 Miran Grca.
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
*/
|
|
|
|
|
#include <stdarg.h>
|
|
|
|
|
#include <stdint.h>
|
|
|
|
|
#include <stdio.h>
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
#include <string.h>
|
|
|
|
|
#include <wchar.h>
|
|
|
|
|
#define HAVE_STDARG_H
|
|
|
|
|
#include <86box/86box.h>
|
|
|
|
|
#include "cpu.h"
|
2021-09-25 15:30:06 +02:00
|
|
|
#include "x86.h"
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
#include <86box/timer.h>
|
|
|
|
|
#include <86box/io.h>
|
|
|
|
|
#include <86box/device.h>
|
2023-06-26 12:47:04 -04:00
|
|
|
#include <86box/plat_unused.h>
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
#include <86box/port_92.h>
|
|
|
|
|
#include <86box/mem.h>
|
|
|
|
|
#include <86box/smram.h>
|
|
|
|
|
#include <86box/pic.h>
|
|
|
|
|
#include <86box/machine.h>
|
|
|
|
|
#include <86box/chipset.h>
|
|
|
|
|
|
|
|
|
|
typedef struct
|
|
|
|
|
{
|
2022-09-18 17:12:38 -04:00
|
|
|
uint8_t cur_reg, tries,
|
|
|
|
|
reg_base, reg_last,
|
|
|
|
|
reg_00, is_471,
|
2022-10-23 05:06:52 +02:00
|
|
|
force_flush, shadowed,
|
|
|
|
|
smram_enabled, pad,
|
2022-09-18 17:12:38 -04:00
|
|
|
regs[39], scratch[2];
|
|
|
|
|
uint32_t mem_state[8];
|
|
|
|
|
smram_t *smram;
|
|
|
|
|
port_92_t *port_92;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
} sis_85c4xx_t;
|
|
|
|
|
|
2022-10-23 05:06:52 +02:00
|
|
|
static void
|
|
|
|
|
sis_85c4xx_recalcremap(sis_85c4xx_t *dev)
|
|
|
|
|
{
|
|
|
|
|
if (dev->is_471) {
|
|
|
|
|
if ((mem_size > 8192) || (dev->shadowed & 0x3c) || (dev->regs[0x0b] & 0x02))
|
|
|
|
|
mem_remap_top(0);
|
|
|
|
|
else
|
|
|
|
|
mem_remap_top(-256);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
static void
|
|
|
|
|
sis_85c4xx_recalcmapping(sis_85c4xx_t *dev)
|
|
|
|
|
{
|
2023-05-11 03:02:36 -04:00
|
|
|
uint32_t base;
|
|
|
|
|
uint32_t n = 0;
|
|
|
|
|
uint32_t shflags = 0;
|
|
|
|
|
uint32_t readext;
|
|
|
|
|
uint32_t writeext;
|
|
|
|
|
uint8_t romcs = 0xc0;
|
|
|
|
|
uint8_t cur_romcs;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
2022-10-23 05:06:52 +02:00
|
|
|
dev->shadowed = 0x00;
|
|
|
|
|
|
2022-09-18 17:12:38 -04:00
|
|
|
shadowbios = 0;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
shadowbios_write = 0;
|
|
|
|
|
|
|
|
|
|
if (dev->regs[0x03] & 0x40)
|
2022-09-18 17:12:38 -04:00
|
|
|
romcs |= 0x01;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
if (dev->regs[0x03] & 0x80)
|
2022-09-18 17:12:38 -04:00
|
|
|
romcs |= 0x30;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
if (dev->regs[0x08] & 0x04)
|
2022-09-18 17:12:38 -04:00
|
|
|
romcs |= 0x02;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
2023-05-11 03:02:36 -04:00
|
|
|
for (uint8_t i = 0; i < 8; i++) {
|
2022-09-18 17:12:38 -04:00
|
|
|
base = 0xc0000 + (i << 15);
|
|
|
|
|
cur_romcs = romcs & (1 << i);
|
|
|
|
|
readext = cur_romcs ? MEM_READ_EXTANY : MEM_READ_EXTERNAL;
|
|
|
|
|
writeext = cur_romcs ? MEM_WRITE_EXTANY : MEM_WRITE_EXTERNAL;
|
|
|
|
|
|
|
|
|
|
if ((i > 5) || (dev->regs[0x02] & (1 << i))) {
|
|
|
|
|
shadowbios |= (base >= 0xe0000) && (dev->regs[0x02] & 0x80);
|
|
|
|
|
shadowbios_write |= (base >= 0xe0000) && !(dev->regs[0x02] & 0x40);
|
|
|
|
|
shflags = (dev->regs[0x02] & 0x80) ? MEM_READ_INTERNAL : readext;
|
|
|
|
|
shflags |= (dev->regs[0x02] & 0x40) ? writeext : MEM_WRITE_INTERNAL;
|
2022-10-23 05:06:52 +02:00
|
|
|
if (dev->regs[0x02] & 0x80)
|
|
|
|
|
dev->shadowed |= (1 << i);
|
|
|
|
|
if (!(dev->regs[0x02] & 0x40))
|
|
|
|
|
dev->shadowed |= (1 << i);
|
|
|
|
|
if (dev->force_flush || (dev->mem_state[i] != shflags)) {
|
2022-09-18 17:12:38 -04:00
|
|
|
n++;
|
2022-10-23 05:06:52 +02:00
|
|
|
mem_set_mem_state_both(base, 0x8000, shflags);
|
2022-09-18 17:12:38 -04:00
|
|
|
if ((base >= 0xf0000) && (dev->mem_state[i] & MEM_READ_INTERNAL) && !(shflags & MEM_READ_INTERNAL))
|
|
|
|
|
mem_invalidate_range(base, base + 0x7fff);
|
|
|
|
|
dev->mem_state[i] = shflags;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
shflags = readext | writeext;
|
2022-10-23 05:06:52 +02:00
|
|
|
if (dev->force_flush || (dev->mem_state[i] != shflags)) {
|
2022-09-18 17:12:38 -04:00
|
|
|
n++;
|
2022-10-23 05:06:52 +02:00
|
|
|
mem_set_mem_state_both(base, 0x8000, shflags);
|
2022-09-18 17:12:38 -04:00
|
|
|
dev->mem_state[i] = shflags;
|
|
|
|
|
}
|
|
|
|
|
}
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
}
|
|
|
|
|
|
2022-10-23 05:06:52 +02:00
|
|
|
if (dev->force_flush) {
|
|
|
|
|
flushmmucache();
|
|
|
|
|
dev->force_flush = 0;
|
|
|
|
|
} else if (n > 0)
|
2022-09-18 17:12:38 -04:00
|
|
|
flushmmucache_nopc();
|
2022-10-23 05:06:52 +02:00
|
|
|
|
|
|
|
|
sis_85c4xx_recalcremap(dev);
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2023-06-26 12:47:04 -04:00
|
|
|
sis_85c4xx_sw_smi_out(UNUSED(uint16_t port), UNUSED(uint8_t val), void *priv)
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
{
|
|
|
|
|
sis_85c4xx_t *dev = (sis_85c4xx_t *) priv;
|
|
|
|
|
|
|
|
|
|
if (dev->regs[0x18] & 0x02) {
|
2022-09-18 17:12:38 -04:00
|
|
|
if (dev->regs[0x0b] & 0x10)
|
|
|
|
|
smi_raise();
|
|
|
|
|
else
|
|
|
|
|
picint(1 << ((dev->regs[0x0b] & 0x08) ? 15 : 12));
|
|
|
|
|
soft_reset_mask = 1;
|
|
|
|
|
dev->regs[0x19] |= 0x02;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sis_85c4xx_sw_smi_handler(sis_85c4xx_t *dev)
|
|
|
|
|
{
|
|
|
|
|
uint16_t addr;
|
|
|
|
|
|
|
|
|
|
if (!dev->is_471)
|
2022-09-18 17:12:38 -04:00
|
|
|
return;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
|
|
|
|
addr = dev->regs[0x14] | (dev->regs[0x15] << 8);
|
|
|
|
|
|
|
|
|
|
io_handler((dev->regs[0x0b] & 0x80) && (dev->regs[0x18] & 0x02), addr, 0x0001,
|
2022-09-18 17:12:38 -04:00
|
|
|
NULL, NULL, NULL, sis_85c4xx_sw_smi_out, NULL, NULL, dev);
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sis_85c4xx_out(uint16_t port, uint8_t val, void *priv)
|
|
|
|
|
{
|
2022-09-18 17:12:38 -04:00
|
|
|
sis_85c4xx_t *dev = (sis_85c4xx_t *) priv;
|
|
|
|
|
uint8_t rel_reg = dev->cur_reg - dev->reg_base;
|
|
|
|
|
uint8_t valxor = 0x00;
|
2023-05-11 03:02:36 -04:00
|
|
|
uint32_t host_base = 0x000e0000;
|
|
|
|
|
uint32_t ram_base = 0x000a0000;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
|
|
|
|
switch (port) {
|
2022-09-18 17:12:38 -04:00
|
|
|
case 0x22:
|
|
|
|
|
dev->cur_reg = val;
|
|
|
|
|
break;
|
|
|
|
|
case 0x23:
|
|
|
|
|
if ((dev->cur_reg >= dev->reg_base) && (dev->cur_reg <= dev->reg_last)) {
|
|
|
|
|
valxor = val ^ dev->regs[rel_reg];
|
|
|
|
|
if (rel_reg == 0x19)
|
|
|
|
|
dev->regs[rel_reg] &= ~val;
|
|
|
|
|
else
|
|
|
|
|
dev->regs[rel_reg] = val;
|
|
|
|
|
|
|
|
|
|
switch (rel_reg) {
|
|
|
|
|
case 0x01:
|
|
|
|
|
cpu_cache_ext_enabled = ((val & 0x84) == 0x84);
|
|
|
|
|
cpu_update_waitstates();
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0x02:
|
|
|
|
|
case 0x03:
|
|
|
|
|
case 0x08:
|
|
|
|
|
if (valxor)
|
|
|
|
|
sis_85c4xx_recalcmapping(dev);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0x0b:
|
|
|
|
|
sis_85c4xx_sw_smi_handler(dev);
|
2022-10-23 05:06:52 +02:00
|
|
|
if (valxor & 0x02)
|
|
|
|
|
sis_85c4xx_recalcremap(dev);
|
2022-09-18 17:12:38 -04:00
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0x13:
|
|
|
|
|
if (dev->is_471 && (valxor & 0xf0)) {
|
|
|
|
|
smram_disable(dev->smram);
|
|
|
|
|
host_base = (val & 0x80) ? 0x00060000 : 0x000e0000;
|
|
|
|
|
switch ((val >> 5) & 0x03) {
|
|
|
|
|
case 0x00:
|
|
|
|
|
ram_base = 0x000a0000;
|
|
|
|
|
break;
|
|
|
|
|
case 0x01:
|
|
|
|
|
ram_base = 0x000b0000;
|
|
|
|
|
break;
|
|
|
|
|
case 0x02:
|
|
|
|
|
ram_base = (val & 0x80) ? 0x00000000 : 0x000e0000;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
ram_base = 0x00000000;
|
|
|
|
|
break;
|
|
|
|
|
}
|
2022-10-23 05:06:52 +02:00
|
|
|
dev->smram_enabled = (ram_base != 0x00000000);
|
2022-09-18 17:12:38 -04:00
|
|
|
if (ram_base != 0x00000000)
|
|
|
|
|
smram_enable(dev->smram, host_base, ram_base, 0x00010000, (val & 0x10), 1);
|
2022-10-23 05:06:52 +02:00
|
|
|
sis_85c4xx_recalcremap(dev);
|
2022-09-18 17:12:38 -04:00
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0x14:
|
|
|
|
|
case 0x15:
|
|
|
|
|
case 0x18:
|
|
|
|
|
sis_85c4xx_sw_smi_handler(dev);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0x1c:
|
|
|
|
|
if (dev->is_471)
|
|
|
|
|
soft_reset_mask = 0;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0x22:
|
|
|
|
|
if (dev->is_471 && (valxor & 0x01)) {
|
|
|
|
|
port_92_remove(dev->port_92);
|
|
|
|
|
if (val & 0x01)
|
|
|
|
|
port_92_add(dev->port_92);
|
|
|
|
|
}
|
|
|
|
|
break;
|
2023-06-26 12:47:04 -04:00
|
|
|
default:
|
|
|
|
|
break;
|
2022-09-18 17:12:38 -04:00
|
|
|
}
|
|
|
|
|
} else if ((dev->reg_base == 0x60) && (dev->cur_reg == 0x00))
|
|
|
|
|
dev->reg_00 = val;
|
|
|
|
|
dev->cur_reg = 0x00;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0xe1:
|
|
|
|
|
case 0xe2:
|
|
|
|
|
dev->scratch[port - 0xe1] = val;
|
|
|
|
|
return;
|
2023-06-26 12:47:04 -04:00
|
|
|
default:
|
|
|
|
|
break;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static uint8_t
|
|
|
|
|
sis_85c4xx_in(uint16_t port, void *priv)
|
|
|
|
|
{
|
2022-09-18 17:12:38 -04:00
|
|
|
sis_85c4xx_t *dev = (sis_85c4xx_t *) priv;
|
|
|
|
|
uint8_t rel_reg = dev->cur_reg - dev->reg_base;
|
|
|
|
|
uint8_t ret = 0xff;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
|
|
|
|
switch (port) {
|
2022-09-18 17:12:38 -04:00
|
|
|
case 0x23:
|
|
|
|
|
if (dev->is_471 && (dev->cur_reg == 0x1c))
|
|
|
|
|
ret = inb(0x70);
|
|
|
|
|
/* On the SiS 40x, the shadow RAM read and write enable bits are write-only! */
|
|
|
|
|
if ((dev->reg_base == 0x60) && (dev->cur_reg == 0x62))
|
|
|
|
|
ret = dev->regs[rel_reg] & 0x3f;
|
|
|
|
|
else if ((dev->cur_reg >= dev->reg_base) && (dev->cur_reg <= dev->reg_last))
|
|
|
|
|
ret = dev->regs[rel_reg];
|
|
|
|
|
else if ((dev->reg_base == 0x60) && (dev->cur_reg == 0x00))
|
|
|
|
|
ret = dev->reg_00;
|
|
|
|
|
if (dev->reg_base != 0x60)
|
|
|
|
|
dev->cur_reg = 0x00;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0xe1:
|
|
|
|
|
case 0xe2:
|
|
|
|
|
ret = dev->scratch[port - 0xe1];
|
2023-06-26 12:47:04 -04:00
|
|
|
default:
|
|
|
|
|
break;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
2021-09-25 15:30:06 +02:00
|
|
|
static void
|
|
|
|
|
sis_85c4xx_reset(void *priv)
|
|
|
|
|
{
|
2022-09-18 17:12:38 -04:00
|
|
|
sis_85c4xx_t *dev = (sis_85c4xx_t *) priv;
|
|
|
|
|
int mem_size_mb = mem_size >> 10;
|
2021-09-25 15:30:06 +02:00
|
|
|
static uint8_t ram_4xx[64] = { 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x00, 0x0b, 0x00, 0x00, 0x00,
|
2022-09-18 17:12:38 -04:00
|
|
|
0x19, 0x00, 0x06, 0x00, 0x14, 0x00, 0x00, 0x00, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
|
|
|
0x1b, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
|
|
|
0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
|
2021-09-25 15:30:06 +02:00
|
|
|
static uint8_t ram_471[64] = { 0x00, 0x00, 0x01, 0x01, 0x02, 0x20, 0x09, 0x09, 0x04, 0x04, 0x05, 0x05, 0x0b, 0x0b, 0x0b, 0x0b,
|
2022-09-18 17:12:38 -04:00
|
|
|
0x13, 0x21, 0x06, 0x06, 0x0d, 0x0d, 0x0d, 0x0d, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e,
|
|
|
|
|
0x1b, 0x1b, 0x1b, 0x1b, 0x0f, 0x0f, 0x0f, 0x0f, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17,
|
|
|
|
|
0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e };
|
2021-09-25 15:30:06 +02:00
|
|
|
|
|
|
|
|
memset(dev->regs, 0x00, sizeof(dev->regs));
|
|
|
|
|
|
|
|
|
|
if (cpu_s->rspeed < 25000000)
|
2022-09-18 17:12:38 -04:00
|
|
|
dev->regs[0x08] = 0x80;
|
2021-09-25 15:30:06 +02:00
|
|
|
|
|
|
|
|
if (dev->is_471) {
|
2022-09-18 17:12:38 -04:00
|
|
|
dev->regs[0x09] = 0x40;
|
|
|
|
|
if (mem_size_mb >= 64) {
|
|
|
|
|
if ((mem_size_mb >= 65) && (mem_size_mb < 68))
|
|
|
|
|
dev->regs[0x09] |= 0x22;
|
|
|
|
|
else
|
|
|
|
|
dev->regs[0x09] |= 0x24;
|
|
|
|
|
} else
|
|
|
|
|
dev->regs[0x09] |= ram_471[mem_size_mb];
|
|
|
|
|
|
|
|
|
|
dev->regs[0x11] = 0x09;
|
|
|
|
|
dev->regs[0x12] = 0xff;
|
|
|
|
|
dev->regs[0x1f] = 0x20; /* Video access enabled. */
|
|
|
|
|
dev->regs[0x23] = 0xf0;
|
|
|
|
|
dev->regs[0x26] = 0x01;
|
|
|
|
|
|
|
|
|
|
smram_enable(dev->smram, 0x000e0000, 0x000a0000, 0x00010000, 0, 1);
|
|
|
|
|
|
|
|
|
|
port_92_remove(dev->port_92);
|
|
|
|
|
|
|
|
|
|
soft_reset_mask = 0;
|
2021-09-25 15:30:06 +02:00
|
|
|
} else {
|
2022-09-18 17:12:38 -04:00
|
|
|
/* Bits 6 and 7 must be clear on the SiS 40x. */
|
|
|
|
|
if (dev->reg_base == 0x60)
|
|
|
|
|
dev->reg_00 = 0x24;
|
2021-09-25 15:30:06 +02:00
|
|
|
|
2022-09-18 17:12:38 -04:00
|
|
|
if (mem_size_mb == 64)
|
|
|
|
|
dev->regs[0x00] = 0x1f;
|
|
|
|
|
else if (mem_size_mb < 64)
|
|
|
|
|
dev->regs[0x00] = ram_4xx[mem_size_mb];
|
2021-09-25 15:30:06 +02:00
|
|
|
|
2022-09-18 17:12:38 -04:00
|
|
|
dev->regs[0x11] = 0x01;
|
2021-09-25 15:30:06 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dev->scratch[0] = dev->scratch[1] = 0xff;
|
|
|
|
|
|
|
|
|
|
cpu_cache_ext_enabled = 0;
|
|
|
|
|
cpu_update_waitstates();
|
|
|
|
|
|
2022-10-23 05:06:52 +02:00
|
|
|
dev->force_flush = 1;
|
2021-09-25 15:30:06 +02:00
|
|
|
sis_85c4xx_recalcmapping(dev);
|
|
|
|
|
}
|
|
|
|
|
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
static void
|
|
|
|
|
sis_85c4xx_close(void *priv)
|
|
|
|
|
{
|
|
|
|
|
sis_85c4xx_t *dev = (sis_85c4xx_t *) priv;
|
|
|
|
|
|
|
|
|
|
if (dev->is_471)
|
2022-09-18 17:12:38 -04:00
|
|
|
smram_del(dev->smram);
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
|
|
|
|
free(dev);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void *
|
|
|
|
|
sis_85c4xx_init(const device_t *info)
|
|
|
|
|
{
|
|
|
|
|
sis_85c4xx_t *dev = (sis_85c4xx_t *) malloc(sizeof(sis_85c4xx_t));
|
|
|
|
|
memset(dev, 0, sizeof(sis_85c4xx_t));
|
|
|
|
|
|
|
|
|
|
dev->is_471 = (info->local >> 8) & 0xff;
|
|
|
|
|
|
|
|
|
|
dev->reg_base = info->local & 0xff;
|
|
|
|
|
|
|
|
|
|
if (dev->is_471) {
|
2022-09-18 17:12:38 -04:00
|
|
|
dev->reg_last = dev->reg_base + 0x76;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
2022-09-18 17:12:38 -04:00
|
|
|
dev->smram = smram_add();
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
2022-09-18 17:12:38 -04:00
|
|
|
dev->port_92 = device_add(&port_92_device);
|
2021-09-25 15:30:06 +02:00
|
|
|
} else
|
2022-09-18 17:12:38 -04:00
|
|
|
dev->reg_last = dev->reg_base + 0x11;
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
|
|
|
|
io_sethandler(0x0022, 0x0002,
|
2022-09-18 17:12:38 -04:00
|
|
|
sis_85c4xx_in, NULL, NULL, sis_85c4xx_out, NULL, NULL, dev);
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
|
|
|
|
io_sethandler(0x00e1, 0x0002,
|
2022-09-18 17:12:38 -04:00
|
|
|
sis_85c4xx_in, NULL, NULL, sis_85c4xx_out, NULL, NULL, dev);
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
2021-09-25 15:30:06 +02:00
|
|
|
sis_85c4xx_reset(dev);
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
|
|
|
|
|
return dev;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
const device_t sis_85c401_device = {
|
2022-09-18 17:12:38 -04:00
|
|
|
.name = "SiS 85c401/85c402",
|
2022-03-13 09:21:08 -04:00
|
|
|
.internal_name = "sis_85c401",
|
2022-09-18 17:12:38 -04:00
|
|
|
.flags = 0,
|
|
|
|
|
.local = 0x060,
|
|
|
|
|
.init = sis_85c4xx_init,
|
|
|
|
|
.close = sis_85c4xx_close,
|
|
|
|
|
.reset = sis_85c4xx_reset,
|
2022-03-13 09:21:08 -04:00
|
|
|
{ .available = NULL },
|
|
|
|
|
.speed_changed = NULL,
|
2022-09-18 17:12:38 -04:00
|
|
|
.force_redraw = NULL,
|
|
|
|
|
.config = NULL
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const device_t sis_85c460_device = {
|
2022-09-18 17:12:38 -04:00
|
|
|
.name = "SiS 85c460",
|
2022-03-13 09:21:08 -04:00
|
|
|
.internal_name = "sis_85c460",
|
2022-09-18 17:12:38 -04:00
|
|
|
.flags = 0,
|
|
|
|
|
.local = 0x050,
|
|
|
|
|
.init = sis_85c4xx_init,
|
|
|
|
|
.close = sis_85c4xx_close,
|
|
|
|
|
.reset = sis_85c4xx_reset,
|
2022-03-13 09:21:08 -04:00
|
|
|
{ .available = NULL },
|
|
|
|
|
.speed_changed = NULL,
|
2022-09-18 17:12:38 -04:00
|
|
|
.force_redraw = NULL,
|
|
|
|
|
.config = NULL
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* TODO: Log to make sure the registers are correct. */
|
|
|
|
|
const device_t sis_85c461_device = {
|
2022-09-18 17:12:38 -04:00
|
|
|
.name = "SiS 85c461",
|
2022-03-13 09:21:08 -04:00
|
|
|
.internal_name = "sis_85c461",
|
2022-09-18 17:12:38 -04:00
|
|
|
.flags = 0,
|
|
|
|
|
.local = 0x050,
|
|
|
|
|
.init = sis_85c4xx_init,
|
|
|
|
|
.close = sis_85c4xx_close,
|
|
|
|
|
.reset = sis_85c4xx_reset,
|
2022-03-13 09:21:08 -04:00
|
|
|
{ .available = NULL },
|
|
|
|
|
.speed_changed = NULL,
|
2022-09-18 17:12:38 -04:00
|
|
|
.force_redraw = NULL,
|
|
|
|
|
.config = NULL
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const device_t sis_85c471_device = {
|
2022-09-18 17:12:38 -04:00
|
|
|
.name = "SiS 85c407/85c471",
|
2022-03-13 09:21:08 -04:00
|
|
|
.internal_name = "sis_85c471",
|
2022-09-18 17:12:38 -04:00
|
|
|
.flags = 0,
|
|
|
|
|
.local = 0x150,
|
|
|
|
|
.init = sis_85c4xx_init,
|
|
|
|
|
.close = sis_85c4xx_close,
|
|
|
|
|
.reset = sis_85c4xx_reset,
|
2022-03-13 09:21:08 -04:00
|
|
|
{ .available = NULL },
|
|
|
|
|
.speed_changed = NULL,
|
2022-09-18 17:12:38 -04:00
|
|
|
.force_redraw = NULL,
|
|
|
|
|
.config = NULL
|
PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
|
|
|
};
|
