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Some FDC, SM(S)C FDC37C66x, and VLSI VL82C480 changes.

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This commit is contained in:
OBattler
2025-05-18 08:14:46 +02:00
parent 3f93bde031
commit 7b9b2bc10d
4 changed files with 71 additions and 31 deletions
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20
src/chipset/vl82c480.c
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@@ -132,7 +132,8 @@ vl82c480_write(uint16_t addr, uint8_t val, void *priv)
break;
case 0x02: case 0x03:
dev->regs[dev->idx] = val;
if (!strcmp(machine_get_internal_name(), "martin"))
if (!strcmp(machine_get_internal_name(), "martin") ||
!strcmp(machine_get_internal_name(), "prolineamt"))
vl82c480_recalc_banks(dev);
break;
case 0x04:
@@ -140,8 +141,6 @@ vl82c480_write(uint16_t addr, uint8_t val, void *priv)
dev->regs[dev->idx] = (dev->regs[dev->idx] & 0x08) | (val & 0xf7);
else
dev->regs[dev->idx] = val;
if (!strcmp(machine_get_internal_name(), "martin"))
dev->regs[dev->idx] &= 0x1f;
break;
case 0x05:
dev->regs[dev->idx] = (dev->regs[dev->idx] & 0x10) | (val & 0xef);
@@ -221,6 +220,9 @@ vl82c480_init(const device_t *info)
vl82c480_t *dev = (vl82c480_t *) calloc(1, sizeof(vl82c480_t));
uint32_t sizes[8] = { 0, 0, 1024, 2048, 4096, 8192, 16384, 32768 };
uint32_t ms = mem_size;
uint8_t min_i = !strcmp(machine_get_internal_name(), "prolineamt") ? 1 : 0;
uint8_t min_j = !strcmp(machine_get_internal_name(), "prolineamt") ? 4 : 2;
uint8_t max_j = !strcmp(machine_get_internal_name(), "prolineamt") ? 8 : 7;
dev->regs[0x00] = info->local;
dev->regs[0x01] = 0xff;
@@ -231,8 +233,16 @@ vl82c480_init(const device_t *info)
dev->regs[0x07] = 0x21;
dev->regs[0x08] = 0x38;
for (uint8_t i = 0; i < 4; i++) {
for (uint8_t j = 2; j < 7; j++) {
if (!strcmp(machine_get_internal_name(), "prolineamt")) {
dev->banks[0] = 4096;
/* Bank 0 is ignored if 64 MB is installed. */
if (ms != 65536)
ms -= 4096;
}
if (ms > 0) for (uint8_t i = min_i; i < 4; i++) {
for (uint8_t j = min_j; j < max_j; j++) {
if (ms >= sizes[j])
dev->banks[i] = sizes[j];
else