mirror of
https://github.com/garrettsworkshop/MacIIROMDiskDriver.git
synced 2024-11-21 12:30:49 +00:00
29 lines
877 B
C
29 lines
877 B
C
#ifndef RDTRAPS_H
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#define RDTRAPS_H
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#pragma parameter __D0 RDReadXPRAM(__D0, __D1, __A0)
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OSErr RDiskReadXPRAM(short numBytes, short whichByte, void *dest) = {0x4840, 0x3001, 0xA051};
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// Other definition of RDiskAddDrive with register calling convention
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//#pragma parameter __D0 RDiskAddDrive(__D1, __D0, __A0)
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//OSErr RDiskAddDrive(short numBytes, short whichByte, void *dest) = {0x4840, 0x3001, 0xA04E};
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OSErr RDiskAddDrive(short drvrRefNum, short drvNum, DrvQElPtr dq) {
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__asm__ __volatile__
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(
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"clr.l %%D0 \n\t"
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"move.w %1,%%D0 \n\t"
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"swap %%D0 \n\t"
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"move.w %0,%%D0 \n\t"
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"movea.l %2,%%A0 \n\t"
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".word 0xA04E \n\t"
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: /* outputs */
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: "g"(drvrRefNum), "g"(drvNum), "g"(dq) /* inputs */
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: /* clobbered */);
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}
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inline char RDiskIsRPressed() { return *((char*)0x175) & 0x80; }
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inline char RDiskIsAPressed() { return *((char*)0x174) & 0x01; }
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#endif
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