MacIIROMDiskDriver/rdisk.h

#ifndef RDISK_H
#define RDISK_H

#define RDiskBuf ((char*)0x40880000)
#define BufPtr ((Ptr*)0x10C)
#define MemTop ((Ptr*)0x108)
#define MMU32bit ((char*)0xCB2)

#pragma parameter __D0 RDiskReadXPRAM(__D0, __D1, __A0)
OSErr RDiskReadXPRAM(short numBytes, short whichByte, Ptr dest) = {0x4840, 0x3001, 0xA051};

#pragma parameter __D0 RDiskAddDrive(__D1, __D0, __A0)
OSErr RDiskAddDrive(short drvrRefNum, short drvNum, DrvQElPtr dq) = {0x4840, 0x3001, 0xA04E};

static inline char RDiskIsRPressed() { return *((char*)0x175) & 0x80; }
static inline char RDiskIsAPressed() { return *((char*)0x174) & 0x01; }

typedef void (*RDiskCopy_t)(Ptr, Ptr, unsigned long);
#define copy24(s, d, b) { RDiskCopy_t copy24 = (RDiskCopy_t)RDiskCopy24; copy24(s, d, b); }

//#define RDISK_COMPRESS_ICON_ENABLE
#define RDISK_ICON_SIZE (285)
typedef struct RDiskStorage_s {
	DrvSts2 status;
	char initialized;
	Ptr ramdisk;
	#ifdef RDISK_COMPRESS_ICON_ENABLE
	char icon[RDISK_ICON_SIZE];
	#endif
} RDiskStorage_t;

#define PackBits_Repeat(count) (-1 * (count - 1))
#define PackBits_Literal(count) (count - 1)

#define RDISK_COMPRESSED_ICON_SIZE (87)
#ifdef RDISK_COMPRESS_ICON_ENABLE
#include <Quickdraw.h>
const char const RDiskIconCompressed[RDISK_COMPRESSED_ICON_SIZE] = {
	PackBits_Repeat(76), 0b00000000, /*
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000, */
	PackBits_Repeat(4), 0b11111111, /*
	0b11111111, 0b11111111, 0b11111111, 0b11111111, */
	PackBits_Literal(36),
	0b10000000, 0b00000000, 0b00000000, 0b00000001,
	0b10001111, 0b00011110, 0b00111100, 0b01111001,
	0b10001001, 0b00010010, 0b00100100, 0b01001001,
	0b10001001, 0b00010010, 0b00100100, 0b01001001,
	0b10001001, 0b00010010, 0b00100100, 0b01001001,
	0b10001111, 0b00011110, 0b00111100, 0b01111001,
	0b11000000, 0b00000000, 0b00000000, 0b00000001,
	0b01010101, 0b01010101, 0b11010101, 0b01010101,
	0b01111111, 0b11111111, 0b01111111, 0b11111111,
	PackBits_Repeat(12), 0b00000000, /*
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000, */
	
	PackBits_Repeat(76), 0b00000000, /*
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000, */
	PackBits_Repeat(32), 0b11111111, /*
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111, */
	PackBits_Literal(1), 0b01111111, 
	PackBits_Repeat(3), 0b11111111, /*
	0b01111111, 0b11111111, 0b11111111, 0b11111111, */
	PackBits_Literal(1), 0b01111111, 
	PackBits_Repeat(3), 0b11111111, /*
	0b01111111, 0b11111111, 0b11111111, 0b11111111, */
	PackBits_Repeat(12), 0b00000000, /*
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000, */
	PackBits_Literal(29),
	27, 'G', 'a', 'r', 'r', 'e', 't', 't', '\'', 's', ' ', 
	'W', 'o', 'r', 'k', 's', 'h', 'o', 'p', ' ', 
	'R', 'O', 'M', ' ', 'D', 'i', 's', 'k', 0
};
#else
const char const RDiskIcon[RDISK_ICON_SIZE] = {
	// Icon
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b10000000, 0b00000000, 0b00000000, 0b00000001,
	0b10001111, 0b00011110, 0b00111100, 0b01111001,
	0b10001001, 0b00010010, 0b00100100, 0b01001001,
	0b10001001, 0b00010010, 0b00100100, 0b01001001,
	0b10001001, 0b00010010, 0b00100100, 0b01001001,
	0b10001111, 0b00011110, 0b00111100, 0b01111001,
	0b11000000, 0b00000000, 0b00000000, 0b00000001,
	0b01010101, 0b01010101, 0b11010101, 0b01010101,
	0b01111111, 0b11111111, 0b01111111, 0b11111111,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	// Mask
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b11111111, 0b11111111, 0b11111111, 0b11111111,
	0b01111111, 0b11111111, 0b11111111, 0b11111111,
	0b01111111, 0b11111111, 0b11111111, 0b11111111,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	0b00000000, 0b00000000, 0b00000000, 0b00000000,
	27, 'G', 'a', 'r', 'r', 'e', 't', 't', '\'', 's', ' ', 
	'W', 'o', 'r', 'k', 's', 'h', 'o', 'p', ' ', 
	'R', 'O', 'M', ' ', 'D', 'i', 's', 'k', 0
};
#endif

#endif