mirror of
https://github.com/garrettsworkshop/MacIIROMDiskDriver.git
synced 2024-10-31 15:05:57 +00:00
22fdedfd16
Now by default CD-ROM extension is disabled and ROM disk is mounted
1 line
4.5 KiB
C
1 line
4.5 KiB
C
#include "RDiskCP.h"
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static long RDiskCPMacDev() {
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int i;
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// Check signature and return 0 if doesn't match
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// Don't check for length byte at beginning or null byte at endss
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for (i = 1; i < sizeof(RDiskSigStr)-1; i++) {
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if (RDiskSigPtr[i] != RDiskSigStr[i]) {
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// If signature doesn't match,
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// fail if not holding R key
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if (!((*((char*)0x175)) & 0x80)) { return 0; }
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}
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}
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return 1; // Otherwise return 1 if signature matches
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}
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static void RDiskCPUpdate(DialogPtr cpDialog, short numItems) {
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GrafPtr savePort;
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Handle h;
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Rect r;
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short type;
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char startup, ram;
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// Get startup and ram from PRAM
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RDiskCPReadXPRam(1, 4, &startup);
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RDiskCPReadXPRam(1, 5, &ram);
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// Save GrafPort and set port to dialog before updating items
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GetPort(&savePort);
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SetPort(cpDialog);
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GetDItem(cpDialog, BootCheckbox+numItems, &type, &h, &r);
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SetCtlValue((ControlHandle)h, startup & 0x01 ? 1 : 0);
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GetDItem(cpDialog, MountCheckbox+numItems, &type, &h, &r);
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SetCtlValue((ControlHandle)h, !(startup & 0x02) && !(startup & 0x01) ? 1 : 0);
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HiliteControl((ControlHandle)h, startup & 0x01 ? 255 : 0);
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GetDItem(cpDialog, RAMCheckbox+numItems, &type, &h, &r);
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SetCtlValue((ControlHandle)h,
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((startup & 0x01) || !(startup & 0x02)) && (ram & 0x01) ? 1 : 0);
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HiliteControl((ControlHandle)h, (startup & 0x01) || !(startup & 0x02) ? 0 : 255);
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GetDItem(cpDialog, DebugCheckbox+numItems, &type, &h, &r);
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SetCtlValue((ControlHandle)h, startup & 0x04 && (startup & 0x01) ? 1 : 0);
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HiliteControl((ControlHandle)h, !(startup & 0x01) || !*RDiskDBGDisPos ? 255 : 0);
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GetDItem(cpDialog, CDROMCheckbox+numItems, &type, &h, &r);
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SetCtlValue((ControlHandle)h, startup & 0x08 && (startup & 0x01) ? 1 : 0);
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HiliteControl((ControlHandle)h, !(startup & 0x01) || !*RDiskCDROMDisPos ? 255 : 0);
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// Restore old GrafPort
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SetPort(savePort);
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}
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static void RDiskCPHitDev(short message, short item, short numItems,
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short cpPrivateVal, EventRecord *theEvent,
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void *cdevStorageValue, DialogPtr cpDialog) {
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char startup, ram;
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RDiskCPReadXPRam(1, 4, &startup);
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RDiskCPReadXPRam(1, 5, &ram);
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switch (item - numItems) {
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case BootCheckbox:
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if (startup & 0x01) { startup &= 0x0F & ~0x01; }
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else { startup = startup & 0x0F | 0x01; }
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break;
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case MountCheckbox:
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if (!(startup & 0x01)) {
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if (startup & 0x02) { startup &= 0x0F & ~0x02; }
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else { startup = startup & 0x0F | 0x02; }
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}
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break;
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case RAMCheckbox:
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if ((startup & 0x01) || !(startup & 0x02)) {
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if (ram & 0x01) { ram = 0x00; }
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else { ram = 0x01; }
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}
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break;
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case DebugCheckbox:
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if (startup & 0x01) {
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if (startup & 0x04) { startup &= 0x0F & ~0x04; }
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else { startup = startup & 0x0F | 0x04; }
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}
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break;
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case CDROMCheckbox:
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if (startup & 0x01) {
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if (startup & 0x08) { startup &= 0x0F & ~0x08; }
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else { startup = startup & 0x0F | 0x08; }
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}
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break;
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};
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RDiskCPWriteXPRam(1, 4, &startup);
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RDiskCPWriteXPRam(1, 5, &ram);
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RDiskCPUpdate(cpDialog, numItems);
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}
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static void RDiskCPInitDev(short message, short item, short numItems,
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short cpPrivateVal, EventRecord *theEvent,
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void *cdevStorageValue, DialogPtr cpDialog) {
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Str15 ramSize;
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Str255 dbgName = "\pMacsBug";
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Str255 cdromName = "\pCD-ROM Ext.";
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int i;
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ramSize[0] = 2;
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if (RDiskCPMacDev()) {
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ramSize[1] = RDiskRAMReq[0];
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ramSize[2] = RDiskRAMReq[1];
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} else {
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ramSize[1] = '1';
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ramSize[2] = '6';
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}
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if (RDiskCPMacDev() && *RDiskDBGNamePos != 0) {
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for (i = 0; i < 255; i++) {
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dbgName[i] = (*RDiskDBGNamePos)[i];
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}
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}
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if (RDiskCPMacDev() && *RDiskCDROMNamePos != 0) {
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for (i = 0; i < 255; i++) {
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cdromName[i] = (*RDiskCDROMNamePos)[i];
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}
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}
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ParamText(ramSize, dbgName, cdromName, 0);
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}
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pascal long main(short message, short item, short numItems,
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short cpPrivateVal, EventRecord *theEvent,
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void *cdevStorageValue, DialogPtr cpDialog)
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{
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long ret = (long)cdevStorageValue;
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// Switch to our A4 world
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EnterCodeResource();
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// Handle message
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switch (message) {
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case initDev:
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RDiskCPInitDev(message, item, numItems,
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cpPrivateVal, theEvent,
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cdevStorageValue, cpDialog);
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// (fall through to return cdevUnset)
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case closeDev:
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ret = cdevUnset; break;
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case macDev:
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ret = RDiskCPMacDev(); break;
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case updateDev:
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case activDev:
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case deactivDev:
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RDiskCPUpdate(cpDialog, numItems);
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break;
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case hitDev:
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RDiskCPHitDev(message, item, numItems,
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cpPrivateVal, theEvent,
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cdevStorageValue, cpDialog);
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break;
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};
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// Restore old A4 world and return result
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ExitCodeResource();
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return ret;
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}
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