mirror of
https://github.com/kanjitalk755/macemu.git
synced 2024-09-04 12:29:06 +00:00
- changed type of ScratchMem from uint32 to uint8 *
- use of Host2MacAddr to glue the ScratchMem area - added an experimental patch to fix a bug with Speedometer in real addressing mode - added an experimental patch to fix a bug with the AppleShare extension in real addressing mode
This commit is contained in:
parent
f882c34591
commit
c982fcf621
@ -53,6 +53,17 @@ static uint32 debugutil_offset; // ROM offset of DebugUtil() replacement routin
|
||||
uint16 ROMVersion;
|
||||
|
||||
|
||||
/*
|
||||
* Convenience functions for retrieving a particular 16-bit word from
|
||||
* a 32-bit word value.
|
||||
*
|
||||
* gb-- probably put those elsewhere...
|
||||
*/
|
||||
|
||||
#define HiWord(X) (((X) >> 16) & 0xffff)
|
||||
#define LoWord(X) ((X) & 0xffff)
|
||||
|
||||
|
||||
/*
|
||||
* Search ROM for byte string, return ROM offset (or 0)
|
||||
*/
|
||||
@ -818,8 +829,8 @@ bool CheckROM(void)
|
||||
// Read version
|
||||
ROMVersion = ntohs(*(uint16 *)(ROMBaseHost + 8));
|
||||
|
||||
#if REAL_ADDRESSING
|
||||
// Real addressing mode requires a 32-bit clean ROM
|
||||
#if REAL_ADDRESSING || DIRECT_ADDRESSING
|
||||
// Real and direct addressing modes require a 32-bit clean ROM
|
||||
return ROMVersion == ROM_VERSION_32;
|
||||
#else
|
||||
// Virtual addressing mode works with 32-bit clean Mac II ROMs and Classic ROMs
|
||||
@ -1221,19 +1232,22 @@ static bool patch_rom_32(void)
|
||||
|
||||
#if REAL_ADDRESSING
|
||||
// Move system zone to start of Mac RAM
|
||||
lp = (uint32 *)(ROMBaseHost + 0x50a);
|
||||
*lp++ = htonl(RAMBaseMac);
|
||||
*lp = htonl(RAMBaseMac + 0x1800);
|
||||
wp = (uint16 *)(ROMBaseHost + 0x50a);
|
||||
*wp++ = htons(HiWord(RAMBaseMac + 0x2000));
|
||||
*wp++ = htons(LoWord(RAMBaseMac + 0x2000));
|
||||
*wp++ = htons(HiWord(RAMBaseMac + 0x3800));
|
||||
*wp = htons(LoWord(RAMBaseMac + 0x3800));
|
||||
#endif
|
||||
|
||||
#if !ROM_IS_WRITE_PROTECTED
|
||||
#if defined(AMIGA)
|
||||
#if defined(AMIGA) || defined(USE_SCRATCHMEM_SUBTERFUGE)
|
||||
// Set fake handle at 0x0000 to scratch memory area (so broken Mac programs won't write into Mac ROM)
|
||||
extern uint32 ScratchMem;
|
||||
extern uint8 *ScratchMem;
|
||||
const uint32 ScratchMemBase = Host2MacAddr(ScratchMem);
|
||||
wp = (uint16 *)(ROMBaseHost + 0xccaa);
|
||||
*wp++ = htons(0x203c); // move.l #ScratchMem,d0
|
||||
*wp++ = htons(ScratchMem >> 16);
|
||||
*wp = htons(ScratchMem);
|
||||
*wp++ = htons(ScratchMemBase >> 16);
|
||||
*wp = htons(ScratchMemBase);
|
||||
#else
|
||||
#error System specific handling for writable ROM is required here
|
||||
#endif
|
||||
@ -1245,7 +1259,14 @@ static bool patch_rom_32(void)
|
||||
*wp++ = htons(M68K_NOP);
|
||||
*wp = htons(M68K_NOP);
|
||||
#endif
|
||||
|
||||
|
||||
#if REAL_ADDRESSING && !defined(AMIGA)
|
||||
// gb-- Temporary hack to get rid of crashes in Speedometer
|
||||
wp = (uint16 *)(ROMBaseHost + 0xdba2);
|
||||
if (ntohs(*wp) == 0x662c) // bne.b #$2c
|
||||
*wp = htons(0x602c); // bra.b #$2c
|
||||
#endif
|
||||
|
||||
// Don't write to VIA in InitTimeMgr
|
||||
wp = (uint16 *)(ROMBaseHost + 0xb0e2);
|
||||
*wp++ = htons(0x4cdf); // movem.l (sp)+,d0-d5/a0-a4
|
||||
|
Loading…
Reference in New Issue
Block a user