mirror of
https://github.com/vivier/EMILE.git
synced 2024-12-22 10:29:31 +00:00
80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/*
|
|
*
|
|
* (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* WARNING: remember that m68k is big endian, like powerPC.
|
|
* i386 is little-endian
|
|
*/
|
|
|
|
/* first level structure */
|
|
|
|
/* BootBlkHdr Structure: "Inside Macintosh: Files", p. 2-57 */
|
|
|
|
typedef struct BootBlkHdr BootBlkHdr_t;
|
|
|
|
struct BootBlkHdr {
|
|
unsigned short ID; /* boot blocks signature */
|
|
unsigned long Entry; /* entry point to bootcode */
|
|
unsigned short Version; /* boot blocks version number */
|
|
unsigned short PageFlags; /* used internally */
|
|
unsigned char SysName[16]; /* System filename */
|
|
unsigned char ShellName[16]; /* Finder filename */
|
|
unsigned char Dbg1Name[16]; /* debugger filename */
|
|
unsigned char Dbg2Name[16]; /* debugger filename */
|
|
unsigned char ScreenName[16]; /* name of startup screen */
|
|
unsigned char HelloName[16]; /* name of startup program */
|
|
unsigned char ScrapName[16]; /* name of system scrap file */
|
|
unsigned short CntFCBs; /* number of FCBs to allocate */
|
|
unsigned short CntEvts; /* number of event queue elements */
|
|
unsigned long Heap128K; /* system heap size on 128K Mac */
|
|
unsigned long Heap256K; /* used internally */
|
|
unsigned long SysHeapSize; /* system heap size on all machines */
|
|
} __attribute__((packed));
|
|
|
|
#define ASSERT_BBH(a) if ( sizeof(BootBlkHdr_t) != 138 ) { a }
|
|
|
|
/* ParamBlockRec Structure: "Inside Macintosh: Files", p. 2-87 */
|
|
|
|
typedef struct ParamBlockRec ParamBlockRec_t;
|
|
|
|
struct ParamBlockRec {
|
|
unsigned long qLink; /* next queue entry */
|
|
unsigned short qType; /* queue type */
|
|
unsigned short ioTrap; /* routine trap */
|
|
unsigned long ioCmdAddr; /* routine address */
|
|
unsigned long ioCompletion; /* pointer to completion routine */
|
|
unsigned short ioResult; /* result code */
|
|
unsigned long ioNamePtr; /* pointer to pathname */
|
|
signed short ioVRefNum; /* volume specification */
|
|
signed short ioRefNum; /* file reference number */
|
|
signed char ioVersNum; /* version number */
|
|
signed char ioPermssn; /* read/write permission */
|
|
unsigned long ioMisc; /* miscellaneaous */
|
|
unsigned long ioBuffer; /* data buffer */
|
|
unsigned long ioReqCount; /* requested number of bytes */
|
|
unsigned long ioActCount; /* actual number of bytes */
|
|
unsigned short ioPosMode; /* positioning mode and newline char */
|
|
signed long ioPosOffset; /* positionning offset */
|
|
} __attribute__((packed));
|
|
|
|
#define ASSERT_PBR(a) if ( sizeof(ParamBlockRec_t) != 50 ) { a }
|
|
|
|
/* EMILE Boot block structure */
|
|
|
|
typedef struct eBootBlock eBootBlock_t;
|
|
|
|
struct eBootBlock {
|
|
BootBlkHdr_t boot_block_header;
|
|
ParamBlockRec_t second_param_block;
|
|
unsigned char boot_code[1024 - sizeof(BootBlkHdr_t)
|
|
- sizeof(ParamBlockRec_t)];
|
|
} __attribute__((packed));
|
|
|
|
#define ASSERT_BB(a) if ( sizeof(eBootBlock_t) != 1024 ) { a }
|
|
|
|
#define SECTOR_SIZE 512
|
|
#define FIRST_LEVEL_SIZE (SECTOR_SIZE * 2)
|