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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).

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This commit is contained in:
OBattler
2020-10-14 23:15:01 +02:00
parent 01362b3dc6
commit 795a6017d2
80 changed files with 2811 additions and 2163 deletions
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75
src/chipset/via_apollo.c
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@@ -26,6 +26,7 @@
#include <wchar.h>
#include <86box/86box.h>
#include <86box/mem.h>
#include <86box/smram.h>
#include <86box/io.h>
#include <86box/rom.h>
#include <86box/device.h>
@@ -37,8 +38,10 @@
typedef struct via_apollo_t
{
uint16_t id;
uint8_t pci_conf[256];
uint16_t id;
uint8_t pci_conf[256];
smram_t *smram;
} via_apollo_t;
@@ -65,17 +68,12 @@ apollo_map(uint32_t addr, uint32_t size, int state)
static void
apollo_smram_map(int smm, uint32_t addr, uint32_t size, int is_smram)
apollo_smram_map(via_apollo_t *dev, int smm, uint32_t host_base, uint32_t size, int is_smram)
{
if (((is_smram & 0x03) == 0x01) || ((is_smram & 0x03) == 0x02)) {
smram[0].ram_base = 0x000a0000;
smram[0].size = size;
if (((is_smram & 0x03) == 0x01) || ((is_smram & 0x03) == 0x02))
smram_enable(dev->smram, host_base, 0x000a0000, size, 0, 1);
mem_mapping_set_addr(&ram_smram_mapping[0], smram[0].host_base, size);
mem_mapping_set_exec(&ram_smram_mapping[0], ram + smram[0].ram_base);
}
mem_set_mem_state_smram_ex(smm, addr, size, is_smram & 0x03);
mem_set_mem_state_smram_ex(smm, host_base, size, is_smram & 0x03);
flushmmucache();
}
@@ -249,64 +247,56 @@ via_apollo_host_bridge_write(int func, int addr, uint8_t val, void *priv)
if ((dev->pci_conf[0x63] ^ val) & 0xc0)
apollo_map(0xe0000, 0x10000, (val & 0xc0) >> 6);
dev->pci_conf[0x63] = val;
if (smram[0].size != 0x00000000) {
mem_set_mem_state_smram_ex(0, smram[0].host_base, smram[0].size, 0x00);
mem_set_mem_state_smram_ex(1, smram[0].host_base, smram[0].size, 0x00);
memset(&smram[0], 0x00, sizeof(smram_t));
mem_mapping_disable(&ram_smram_mapping[0]);
flushmmucache();
}
smram_disable_all();
if (dev->id == 0x0691) switch (val & 0x03) {
case 0x00:
default:
apollo_smram_map(1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
apollo_smram_map(0, 0x000a0000, 0x00020000, 0); /* Non-SMM: Code PCI, Data PCI */
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 0); /* Non-SMM: Code PCI, Data PCI */
break;
case 0x01:
apollo_smram_map(1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
apollo_smram_map(0, 0x000a0000, 0x00020000, 1); /* Non-SMM: Code DRAM, Data DRAM */
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 1); /* Non-SMM: Code DRAM, Data DRAM */
break;
case 0x02:
apollo_smram_map(1, 0x000a0000, 0x00020000, 3); /* SMM: Code Invalid, Data Invalid */
apollo_smram_map(0, 0x000a0000, 0x00020000, 2); /* Non-SMM: Code DRAM, Data PCI */
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 3); /* SMM: Code Invalid, Data Invalid */
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 2); /* Non-SMM: Code DRAM, Data PCI */
break;
case 0x03:
apollo_smram_map(1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
apollo_smram_map(0, 0x000a0000, 0x00020000, 3); /* Non-SMM: Code Invalid, Data Invalid */
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 3); /* Non-SMM: Code Invalid, Data Invalid */
break;
} else switch (val & 0x03) {
case 0x00:
default:
/* Disable SMI Address Redirection (default) */
apollo_smram_map(1, 0x000a0000, 0x00020000, 0);
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 0);
if (dev->id == 0x0597)
apollo_smram_map(1, 0x00030000, 0x00020000, 1);
apollo_smram_map(0, 0x000a0000, 0x00020000, 0);
apollo_smram_map(dev, 1, 0x00030000, 0x00020000, 1);
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 0);
break;
case 0x01:
/* Allow access to DRAM Axxxx-Bxxxx for both normal and SMI cycles */
apollo_smram_map(1, 0x000a0000, 0x00020000, 1);
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1);
if (dev->id == 0x0597)
apollo_smram_map(1, 0x00030000, 0x00020000, 1);
apollo_smram_map(0, 0x000a0000, 0x00020000, 1);
apollo_smram_map(dev, 1, 0x00030000, 0x00020000, 1);
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 1);
break;
case 0x02:
/* Reserved */
apollo_smram_map(1, 0x000a0000, 0x00020000, 3);
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 3);
if (dev->id == 0x0597) {
/* SMI 3xxxx-4xxxx redirect to Axxxx-Bxxxx. */
smram[0].host_base = 0x00030000;
apollo_smram_map(1, 0x00030000, 0x00020000, 1);
apollo_smram_map(dev, 1, 0x00030000, 0x00020000, 1);
}
apollo_smram_map(0, 0x000a0000, 0x00020000, 3);
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 3);
break;
case 0x03:
/* Allow SMI Axxxx-Bxxxx DRAM access */
apollo_smram_map(1, 0x000a0000, 0x00020000, 1);
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1);
if (dev->id == 0x0597)
apollo_smram_map(1, 0x00030000, 0x00020000, 1);
apollo_smram_map(0, 0x000a0000, 0x00020000, 0);
apollo_smram_map(dev, 1, 0x00030000, 0x00020000, 1);
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 0);
break;
}
break;
@@ -444,6 +434,9 @@ via_apollo_init(const device_t *info)
via_apollo_t *dev = (via_apollo_t *) malloc(sizeof(via_apollo_t));
memset(dev, 0, sizeof(via_apollo_t));
dev->smram = smram_add();
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
pci_add_card(PCI_ADD_NORTHBRIDGE, via_apollo_read, via_apollo_write, dev);
dev->id = info->local;
@@ -474,6 +467,8 @@ via_apollo_close(void *priv)
{
via_apollo_t *dev = (via_apollo_t *) priv;
smram_del(dev->smram);
free(dev);
}