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Added the OPTi 802G device (the 802G and 895 are register-identical), and added port 23h to the OPTi 8xx'es.

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This commit is contained in:
OBattler
2020-06-29 18:44:20 +02:00
parent 4a8aa601b6
commit a4301708da
2 changed files with 35 additions and 2 deletions
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36
src/chipset/opti895.c
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@@ -144,7 +144,17 @@ opti895_write(uint16_t addr, uint8_t val, void *priv)
case 0x22:
dev->idx = val;
break;
case 0x23:
if (dev->idx != 0x01)
break;
dev->regs[dev->idx] = val;
opti895_log("dev->regs[%04x] = %08x\n", dev->idx, val);
break;
case 0x24:
if (dev->idx == 0x01)
break;
dev->regs[dev->idx] = val;
opti895_log("dev->regs[%04x] = %08x\n", dev->idx, val);
@@ -194,7 +204,16 @@ opti895_read(uint16_t addr, void *priv)
opti895_t *dev = (opti895_t *) priv;
switch (addr) {
case 0x23:
if (dev->idx != 0x01)
break;
ret = dev->regs[dev->idx];
break;
case 0x24:
if (dev->idx == 0x01)
break;
ret = dev->regs[dev->idx];
if (dev->idx == 0xe0)
ret = (ret & 0xf6) | (in_smm ? 0x00 : 0x08) | !!dev->forced_green;
@@ -226,11 +245,12 @@ opti895_init(const device_t *info)
device_add(&port_92_device);
io_sethandler(0x0022, 0x0001, opti895_read, NULL, NULL, opti895_write, NULL, NULL, dev);
io_sethandler(0x0024, 0x0001, opti895_read, NULL, NULL, opti895_write, NULL, NULL, dev);
io_sethandler(0x0022, 0x0003, opti895_read, NULL, NULL, opti895_write, NULL, NULL, dev);
dev->scratch[0] = dev->scratch[1] = 0xff;
dev->regs[0x01] = 0xc0;
dev->regs[0x22] = 0xc4;
dev->regs[0x25] = 0x7c;
dev->regs[0x26] = 0x10;
@@ -241,6 +261,8 @@ opti895_init(const device_t *info)
dev->regs[0x2b] = 0x10;
dev->regs[0x2d] = 0xc0;
dev->regs[0xe8] = 0x08;
dev->regs[0xe9] = 0x08;
dev->regs[0xeb] = 0xff;
dev->regs[0xef] = 0x40;
@@ -262,6 +284,16 @@ opti895_init(const device_t *info)
}
const device_t opti802g_device = {
"OPTi 82C802G",
0,
0,
opti895_init, opti895_close, NULL,
NULL, NULL, NULL,
NULL
};
const device_t opti895_device = {
"OPTi 82C895",
0,

1
src/include/86box/chipset.h
View File

@@ -61,6 +61,7 @@ extern const device_t ioapic_device;
/* OPTi */
extern const device_t opti495_device;
extern const device_t opti802g_device;
extern const device_t opti895_device;
extern const device_t opti5x7_device;