Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Intel flash chips respond to writes at all addresses. Fixes NVRAM errors

Browse source 
on VS440FX.
This commit is contained in:
SarahW 2020-11-04 20:56:40 +00:00
commit 8a5a0fc48c
1 changed files with 1 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/intel_flash.c
View file

@ -43,11 +43,7 @@ static uint8_t flash_read(uint32_t addr, void *p)
{ {
flash_t *flash = (flash_t *)p; flash_t *flash = (flash_t *)p;
if (flash->invert_high_pin) if (flash->invert_high_pin)
{
// pclog("flash_read : addr=%08x/%08x val=%02x command=%02x %04x:%08x\n", addr, addr ^ 0x10000, flash->array[(addr ^ 0x10000) & 0x1ffff], flash->command, CS, cpu_state.pc);
addr ^= 0x10000; addr ^= 0x10000;
if (addr & 0xfff00000) return flash->array[addr & flash->addr_mask];
}
// pclog("flash_read : addr=%08x command=%02x %04x:%08x\n", addr, flash->command, CS, cpu_state.pc); // pclog("flash_read : addr=%08x command=%02x %04x:%08x\n", addr, flash->command, CS, cpu_state.pc);
addr &= flash->addr_mask; addr &= flash->addr_mask;
switch (flash->command) switch (flash->command)
@ -97,13 +93,10 @@ static void flash_write(uint32_t addr, uint8_t val, void *p)
{ {
flash_t *flash = (flash_t *)p; flash_t *flash = (flash_t *)p;
int i; int i;
pclog("flash_write : addr=%08x val=%02x command=%02x %04x:%08x\n", addr, val, flash->command, CS, cpu_state.pc); // pclog("flash_write : addr=%08x val=%02x command=%02x %04x:%08x\n", addr, val, flash->command, CS, cpu_state.pc);
if (flash->invert_high_pin) if (flash->invert_high_pin)
{
addr ^= 0x10000; addr ^= 0x10000;
if (addr & 0xfff00000) return;
}
addr &= flash->addr_mask; addr &= flash->addr_mask;
switch (flash->command) switch (flash->command)