MacIIROMDiskDriver/RDiskCP/RDiskCP.c

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#include "RDiskCP.h" static long RDiskCPMacDev() { int i; // Check signature and return 0 if doesn't match // Don't check for length byte at beginning or null byte at endss for (i = 1; i < sizeof(RDiskSigStr)-1; i++) { if (RDiskSigPtr[i] != RDiskSigStr[i]) { // If signature doesn't match, // fail if not holding R key if (!((*((char*)0x175)) & 0x80)) { return 0; } } } return 1; // Otherwise return 1 if signature matches } static void RDiskCPUpdate(DialogPtr cpDialog, short numItems) { GrafPtr savePort; Handle h; Rect r; short type; char startup, ram; // Get startup and ram from PRAM RDiskCPReadXPRam(1, 4, &startup); RDiskCPReadXPRam(1, 5, &ram); // Save GrafPort and set port to dialog before updating items GetPort(&savePort); SetPort(cpDialog); GetDItem(cpDialog, BootCheckbox+numItems, &type, &h, &r); SetCtlValue((ControlHandle)h, startup & 0x01 ? 1 : 0); GetDItem(cpDialog, MountCheckbox+numItems, &type, &h, &r); SetCtlValue((ControlHandle)h, !(startup & 0x02) && !(startup & 0x01) ? 1 : 0); HiliteControl((ControlHandle)h, startup & 0x01 ? 255 : 0); GetDItem(cpDialog, RAMCheckbox+numItems, &type, &h, &r); SetCtlValue((ControlHandle)h, ((startup & 0x01) || !(startup & 0x02)) && (ram & 0x01) ? 1 : 0); HiliteControl((ControlHandle)h, (startup & 0x01) || !(startup & 0x02) ? 0 : 255); GetDItem(cpDialog, DebugCheckbox+numItems, &type, &h, &r); SetCtlValue((ControlHandle)h, startup & 0x04 && (startup & 0x01) ? 1 : 0); HiliteControl((ControlHandle)h, !(startup & 0x01) || !*RDiskDBGDisPos ? 255 : 0); GetDItem(cpDialog, CDROMCheckbox+numItems, &type, &h, &r); SetCtlValue((ControlHandle)h, startup & 0x08 && (startup & 0x01) ? 1 : 0); HiliteControl((ControlHandle)h, !(startup & 0x01) || !*RDiskCDROMDisPos ? 255 : 0); // Restore old GrafPort SetPort(savePort); } static void RDiskCPHitDev(short message, short item, short numItems, short cpPrivateVal, EventRecord *theEvent, void *cdevStorageValue, DialogPtr cpDialog) { char startup, ram; RDiskCPReadXPRam(1, 4, &startup); RDiskCPReadXPRam(1, 5, &ram); switch (item - numItems) { case BootCheckbox: if (startup & 0x01) { startup &= 0x0F & ~0x01; } else { startup = startup & 0x0F | 0x01; } break; case MountCheckbox: if (!(startup & 0x01)) { if (startup & 0x02) { startup &= 0x0F & ~0x02; } else { startup = startup & 0x0F | 0x02; } } break; case RAMCheckbox: if ((startup & 0x01) || !(startup & 0x02)) { if (ram & 0x01) { ram = 0x00; } else { ram = 0x01; } } break; case DebugCheckbox: if (startup & 0x01) { if (startup & 0x04) { startup &= 0x0F & ~0x04; } else { startup = startup & 0x0F | 0x04; } } break; case CDROMCheckbox: if (startup & 0x01) { if (startup & 0x08) { startup &= 0x0F & ~0x08; } else { startup = startup & 0x0F | 0x08; } } break; }; RDiskCPWriteXPRam(1, 4, &startup); RDiskCPWriteXPRam(1, 5, &ram); RDiskCPUpdate(cpDialog, numItems); } static void RDiskCPInitDev(short message, short item, short numItems, short cpPrivateVal, EventRecord *theEvent, void *cdevStorageValue, DialogPtr cpDialog) { Str15 ramSize; Str255 dbgName = "\pMacsBug"; Str255 cdromName = "\pCD-ROM Ext."; int i; ramSize[0] = 2; if (RDiskCPMacDev()) { ramSize[1] = RDiskRAMReq[0]; ramSize[2] = RDiskRAMReq[1]; } else { ramSize[1] = '1'; ramSize[2] = '6'; } if (RDiskCPMacDev() && *RDiskDBGNamePos != 0) { for (i = 0; i < 255; i++) { dbgName[i] = (*RDiskDBGNamePos)[i]; } } if (RDiskCPMacDev() && *RDiskCDROMNamePos != 0) { for (i = 0; i < 255; i++) { cdromName[i] = (*RDiskCDROMNamePos)[i]; } } ParamText(ramSize, dbgName, cdromName, 0); } pascal long main(short message, short item, short numItems, short cpPrivateVal, EventRecord *theEvent, void *cdevStorageValue, DialogPtr cpDialog) { long ret = (long)cdevStorageValue; // Switch to our A4 world EnterCodeResource(); // Handle message switch (message) { case initDev: RDiskCPInitDev(message, item, numItems, cpPrivateVa