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- added an experimental patch to fix a bug with the AppleShare extension in real addressing mode

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This commit is contained in:
gbeauche 2000-09-22 17:17:56 +00:00
parent c982fcf621
commit 83d05988fb
1 changed files with 34 additions and 9 deletions
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43
BasiliskII/src/rsrc_patches.cpp
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@ -69,7 +69,7 @@ void CheckLoad(uint32 type, int16 id, uint8 *p, uint32 size)
uint16 *p16;
uint32 base;
D(bug("vCheckLoad %c%c%c%c (%08x) ID %d, data %08x, size %d\n", (char)(type >> 24), (char)((type >> 16) & 0xff), (char )((type >> 8) & 0xff), (char )(type & 0xff), type, id, p, size));
if (type == FOURCC('b','o','o','t') && id == 3) {
D(bug(" boot 3 found\n"));
@ -90,12 +90,13 @@ void CheckLoad(uint32 type, int16 id, uint8 *p, uint32 size)
if (base) {
p16 = (uint16 *)(p + base);
#if defined(AMIGA) || defined(__NetBSD__)
#if defined(AMIGA) || defined(__NetBSD__) || defined(USE_SCRATCHMEM_SUBTERFUGE)
// Set 0x0000 to scratch memory area
extern uint32 ScratchMem;
extern uint8 *ScratchMem;
const uint32 ScratchMemBase = Host2MacAddr(ScratchMem);
*p16++ = htons(0x207c); // move.l #ScratchMem,a0
*p16++ = htons(ScratchMem >> 16);
*p16++ = htons(ScratchMem);
*p16++ = htons(ScratchMemBase >> 16);
*p16++ = htons(ScratchMemBase);
*p16++ = htons(M68K_NOP);
*p16 = htons(M68K_NOP);
#else
@ -114,12 +115,13 @@ void CheckLoad(uint32 type, int16 id, uint8 *p, uint32 size)
if (base) {
p16 = (uint16 *)(p + base);
#if defined(AMIGA) || defined(__NetBSD__)
#if defined(AMIGA) || defined(__NetBSD__) || defined(USE_SCRATCHMEM_SUBTERFUGE)
// Set 0x0000 to scratch memory area
extern uint32 ScratchMem;
extern uint8 *ScratchMem;
const uint32 ScratchMemBase = Host2MacAddr(ScratchMem);
*p16++ = htons(0x207c); // move.l #ScratchMem,a0
*p16++ = htons(ScratchMem >> 16);
*p16++ = htons(ScratchMem);
*p16++ = htons(ScratchMemBase >> 16);
*p16++ = htons(ScratchMemBase);
*p16++ = htons(M68K_NOP);
*p16 = htons(M68K_NOP);
#else
@ -600,4 +602,27 @@ void CheckLoad(uint32 type, int16 id, uint8 *p, uint32 size)
FlushCodeCache(p, 6);
D(bug(" patch 1 applied\n"));
}
#if REAL_ADDRESSING && !defined(AMIGA)
else if (type == FOURCC('D','R','V','R') && id == 41) {
D(bug(" DRVR 41 found\n"));
// gb-- [0x28E (ROM85)] contains 0x3fff that will be placed into a0
// Seems to be caused by the AppleShare extension from MacOS 8.1 (3.7.4)
// .AFPTranslator (DRVR addr 0x2372)
static const uint8 dat[] = {0x3a, 0x2e, 0x00, 0x0a, 0x55, 0x4f, 0x3e, 0xb8, 0x02, 0x8e, 0x30, 0x1f, 0x48, 0xc0, 0x24, 0x40, 0x20, 0x40};
base = find_rsrc_data(p, size, dat, sizeof(dat));
if (base) {
p16 = (uint16 *)(p + base + 4);
*p16++ = htons(0x3078); // movea.w ROM85,%a0
*p16++ = htons(0x028e);
*p16++ = htons(0xd1fc); // adda.l #RAMBaseMac,%a0
*p16++ = htons((RAMBaseMac >> 16) & 0xffff);
*p16++ = htons(RAMBaseMac & 0xffff);
*p16++ = htons(0x2448); // movea.l %a0,%a2
*p16++ = htons(M68K_NOP);
FlushCodeCache(p + base + 4, 14);
D(bug(" patch 1 applied\n"));
}
}
#endif
}