NetBoot/romdrv 0.9.6/RomDiskCP.c

#include <A4Stuff.h>
#include <Devices.h>

#define kOnButton 2
#define kOffButton 3

#define kRAMButton 6
#define kROMButton 7

#pragma parameter __D0 ReadXPRam(__D0, __D1, __A0)
short ReadXPRam(short size, short offset, char *where) = {0x4840, 0x3001, _ReadXPRam};
#pragma parameter __D0 WriteXPRam(__D0, __D1, __A0)
short WriteXPRam(short size, short offset, char *where) = {0x4840, 0x3001, _WriteXPRam};

void updateDisplay(DialogPtr d, short numItems, char startup, char ram, char grayed);

void updateDisplay(DialogPtr d, short numItems, char startup, char ram, char grayed) {
	GrafPtr savePort;
	Handle h;
	Rect r;
	short type;
	
	GetPort(&savePort);
	SetPort(d);
	GetDItem(d, kOnButton+numItems, &type, &h, &r);
	SetCtlValue((ControlHandle)h, startup);
	GetDItem(d, kOffButton+numItems, &type, &h, &r);
	SetCtlValue((ControlHandle)h, !startup);

	GetDItem(d, kRAMButton+numItems, &type, &h, &r);
	SetCtlValue((ControlHandle)h, ram);
	GetDItem(d, kROMButton+numItems, &type, &h, &r);
	SetCtlValue((ControlHandle)h, !ram);
	SetPort(savePort);

	return;
}

pascal long main(short message,short item,short numItems,short /*privateValue*/,
			     EventRecord *e, void *cdev, DialogPtr d)
{
	EnterCodeResource();
	long result;
	Handle h;
	Rect r;
	short type;
	GrafPtr savePort;
	unsigned char **via1ptr = (unsigned char**)0x01D4;
	unsigned char data, dir;
	char startup = 0;
	char ram = 0;

	result = (long)cdev;
	
	switch (message) {
	case initDev:
		cdev = (Handle)cdevUnset;
		ReadXPRam(1, 4, &startup);
		ReadXPRam(1, 5, &ram);
		result = (long)cdev;
		break;
	case closeDev:
		cdev = (Handle)cdevUnset;
		result = cdevUnset;
		break;
	case macDev:
		result = 1L;
		break;
	case updateDev:
	case activDev:
		ReadXPRam(1, 4, &startup);
		ReadXPRam(1, 5, &ram);
		updateDisplay(d, numItems, startup, ram, 0);
		break;
	case deactivDev:
		ReadXPRam(1, 4, &startup);
		ReadXPRam(1, 5, &ram);
		updateDisplay(d, numItems, startup, ram, 1);
		break;
	case hitDev:
		ReadXPRam(1, 4, &startup);
		ReadXPRam(1, 5, &ram);
		switch(item-numItems) {
		case kOnButton: startup = 1; break;
		case kOffButton: startup = 0; break;
		case kRAMButton: ram = 1; break;
		case kROMButton: ram = 0; break;
		default: break;
		};
		updateDisplay(d, numItems, startup, ram, 0);
		WriteXPRam(1, 4, &startup);
		WriteXPRam(1, 5, &ram);
		break;
	default:
		break;
	};
	
	
	ExitCodeResource();
	
	return result;
}