Force SYS68K/CPU-30 R4, Техническое справочное руководство

Страница: 172 / 209

SYS68K/CPU-30 R4 Technical Reference Manual Appendix to VMEPROM
Page 159
9.4 Task Control Block Definitions
#define MAXARG 10 /* max argument count of the cmd line */
#define MAXBP 10 /* max 10 breakpoints */
#define MAXNAME 5 /* max 5 names in name buffer */
#define TMAX 64 /* Max number of tasks */
#define ARGLEN 20 /* maximum argument length */
/* special system flags for VMEPROM */
#define SOMEREG 0x0001 /* display only PC,A7,A6,A5 */
#define T_DISP 0x0002 /* no register display during trace(TC>1) */
#define T_SUB 0x0004 /* trace over subroutine set */
#define T_ASUB 0x0008 /* trace over subroutine active */
#define T_RANG 0x0010 /* trace over range set */
#define REG_INI 0x0020 /* no register initialization if set */
#define RE_DIR 0x0040 /* output redirection into file and */
/* console at the same time */
/* the registers are stored in the following order: */
#define VBR 0
#define SFC 1
#define DFC 2
#define CACR 4
#define PC 5
#define SR 6
#define USTACK 7
#define SSTACK 8
#define MSTACK 9
#define D0 10 /* 10-17 = D0-D7 */
#define A0 18 /* 18-24 = A0-A6 */
#define N_REGS 25
#define BYTE unsigned char
#define WORD unsigned int
#define LWORD unsigned long
struct TCB{
/*000*/ char _ubuf[256]; /* 256 byte user buffer */
/*100*/ char _clb[80]; /* 80 byte monitor command line buffer */
/*150*/ char _mwb[32]; /* 32 byte monitor parameter buffer */
/*170*/ char _mpb[60]; /* monitor parameter buffer */
/*1AC*/ char _cob[8]; /* character out buffer */
/*1B4*/ char _swb[508]; /* system work buffer/task pdos stack */
/*3B0*/ char *_tsp; /* task stack pointer */
/*3B4*/ char *_kil; /* kill self pointer */
/*3B8*/ long _sfp; /* RESERVED FOR INTERNAL PDOS USE */
/*3BC*/ char _svf; /* save flag -- 68881 support (x881) */
/*3BD*/ char _iff; /* RESERVED FOR INTERNAL PDOS USE */
/*3BE*/ long _trp[16]; /* user TRAP vectors */
/*3FE*/ long _zdv; /* zero divide trap */
/*402*/ long _chk; /* CHCK instruction trap */
/*406*/ long _trv; /* TRAPV Instruction trap */