mirror of
https://github.com/garrettsworkshop/MacIIROMDiskDriver.git
synced 2024-06-09 03:29:27 +00:00
1 line
3.0 KiB
C
Executable File
1 line
3.0 KiB
C
Executable File
#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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for (i = 0; i < sizeof(RDiskSig)-1; i++) {
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if (RDiskSigAddr[i] != RDiskSig[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, startup & 0x03 && ram & 0x01 ? 1 : 0);
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HiliteControl((ControlHandle)h, startup & 0x03 ? 0 : 255);
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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 & 0x03) {
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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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};
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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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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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if (RDiskSigAddr[sizeof(RDiskSig) + 4] == 0x57) {
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Str15 ramSize;
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ramSize[0] = 2;
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ramSize[1] = RDiskSigAddr[sizeof(RDiskSig) + 5];
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ramSize[2] = RDiskSigAddr[sizeof(RDiskSig) + 6];
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ParamText(ramSize, 0, 0, 0);
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} else { ParamText("\p16", 0, 0, 0); }
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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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