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https://github.com/garrettsworkshop/MacIIROMDiskDriver.git
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Put dereferencing patch byte pointer in P24
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bin/rom8M.bin
BIN
bin/rom8M.bin
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12
rdisk.c
12
rdisk.c
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@ -53,12 +53,12 @@ void C24(Ptr sourcePtr, Ptr destPtr, unsigned long byteCount) {
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}
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}
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// Switch to 32-bit mode and patch
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// Switch to 32-bit mode and patch
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typedef void (*RDiskPatch_t)(Ptr, char);
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typedef void (*RDiskPatch_t)(Ptr, char*);
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#pragma parameter P24(__A0, __D0)
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#pragma parameter P24(__A0, __A1)
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void __attribute__ ((noinline)) P24(Ptr ptr, char patch) {
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void __attribute__ ((noinline)) P24(Ptr ptr, char *patch) {
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signed char mode = true32b;
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signed char mode = true32b;
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SwapMMUMode(&mode);
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SwapMMUMode(&mode);
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*ptr = patch; // Patch byte
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*ptr = *patch; // Patch byte
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SwapMMUMode(&mode);
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SwapMMUMode(&mode);
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}
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}
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@ -166,8 +166,8 @@ static void RDInit(IOParamPtr p, DCtlPtr d, RDiskStorage_t *c) {
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// Patch debug and CD-ROM enable bytes
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// Patch debug and CD-ROM enable bytes
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if (c->ramdisk) {
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if (c->ramdisk) {
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RDiskPatch_t fun = P24;
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RDiskPatch_t fun = P24;
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if (!dbgEN /*&& *RDiskDBGDisPos >= 0*/) { fun(c->ramdisk + 0x00000031UL, *RDiskDBGDisByte); }
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if (!dbgEN /*&& *RDiskDBGDisPos >= 0*/) { fun(c->ramdisk + 0x00000031UL, RDiskDBGDisByte); }
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if (!cdrEN /*&& *RDiskCDRDisPos >= 0*/) { fun(c->ramdisk + 0x00012CAFUL, *RDiskCDRDisByte); }
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if (!cdrEN /*&& *RDiskCDRDisPos >= 0*/) { fun(c->ramdisk + 0x00012CAFUL, RDiskCDRDisByte); }
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}
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}
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// Unmount if not booting from ROM disk
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// Unmount if not booting from ROM disk
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