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Merge pull request #10017 from Jamiras/cheevos_segacd_ext_mem

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(cheevos) support for extended sega cd memory
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Twinaphex 2020-01-19 04:15:41 +01:00 committed by GitHub
commit ee95aa401d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 25 additions and 12 deletions
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37
cheevos-new/fixup.c
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@ -124,6 +124,7 @@ const uint8_t* rcheevos_patch_address(unsigned address, int console)
{
rarch_system_info_t* system = runloop_get_system_info();
const void* pointer = NULL;
unsigned original_address = address;
if (console == RC_CONSOLE_NINTENDO)
{
@ -208,6 +209,21 @@ const uint8_t* rcheevos_patch_address(unsigned address, int console)
address += 0x006000 - 0x020000;
}
}
else if (console == RC_CONSOLE_SEGA_CD)
{
if (address < 0x010000)
{
/* Work RAM. */
address += 0xFF0000;
CHEEVOS_LOG(RCHEEVOS_TAG "Sega CD memory address %X adjusted to %X\n", original_address, address);
}
else
{
/* CD-ROM peripheral RAM - exposed at virtual address to avoid banking */
address += 0x80020000 - 0x010000;
CHEEVOS_LOG(RCHEEVOS_TAG "Sega CD memory address %X adjusted to %X\n", original_address, address);
}
}
desc = system->mmaps.descriptors;
end = desc + system->mmaps.num_descriptors;
@ -216,19 +232,18 @@ const uint8_t* rcheevos_patch_address(unsigned address, int console)
{
if (((desc->core.start ^ address) & desc->core.select) == 0)
{
unsigned addr = address;
pointer = desc->core.ptr;
pointer = desc->core.ptr;
address -= desc->core.start;
address = (unsigned)rcheevos_var_reduce(
(addr - desc->core.start) & desc->disconnect_mask,
desc->core.disconnect);
if (desc->disconnect_mask)
address = (unsigned)rcheevos_var_reduce(address & desc->disconnect_mask, desc->core.disconnect);
if (address >= desc->core.len)
address -= rcheevos_var_highest_bit(address);
address += desc->core.offset;
CHEEVOS_LOG(RCHEEVOS_TAG "address %X set to descriptor %d at offset %X\n", addr, (int)((desc - system->mmaps.descriptors) + 1), address);
CHEEVOS_LOG(RCHEEVOS_TAG "address %X set to descriptor %d at offset %X\n", original_address, (int)((desc - system->mmaps.descriptors) + 1), address);
break;
}
}
@ -236,7 +251,6 @@ const uint8_t* rcheevos_patch_address(unsigned address, int console)
else
{
unsigned i;
unsigned addr = address;
for (i = 0; i < 4; i++)
{
@ -260,10 +274,9 @@ const uint8_t* rcheevos_patch_address(unsigned address, int console)
core_get_memory(&meminfo);
if (addr < meminfo.size)
if (address < meminfo.size)
{
pointer = meminfo.data;
address = addr;
break;
}
@ -272,15 +285,15 @@ const uint8_t* rcheevos_patch_address(unsigned address, int console)
* it's size is not always set correctly in the core.
*/
if (i == 0 && console == RC_CONSOLE_NINTENDO)
addr -= 0x6000;
address -= 0x6000;
else
addr -= meminfo.size;
address -= meminfo.size;
}
}
if (pointer == NULL)
{
CHEEVOS_LOG(RCHEEVOS_TAG "address %X not supported\n", address);
CHEEVOS_LOG(RCHEEVOS_TAG "address %X not supported\n", original_address);
return NULL;
}