mtpr.h

著名的AT&T UNIX v6 源码

/*
 	VAX processor register numbers
 */

#define KSP 0		/* kernal stack pointer */
#define ESP 1		/* exec stack pointer */
#define SSP 2		/* supervisor stack pointer */
#define USP 3		/* user stack pointer */
#define ISP 4		/* interrupt stack pointer */
#define P0BR 8		/* p0 base register */
#define P0LR 9		/* p0 length register */
#define P1BR 10		/* p1 base register */
#define P1LR 11		/* p1 length register */
#define SBR 12		/* system segment base register */
#define SLR 13		/* system segment length register */
#define PCBB 16		/* process control block base */
#define SCBB 17		/* system control block base */
#define IPL 18		/* interrupt priority level */
#define ASTLVL 19	/* async. system trap level */
#define SIRR 20		/* software interrupt request */
#define SISR 21		/* software interrupt summary */
#define ICCS 24		/* interval clock control */
#define NICR 25		/* next interval count */
#define ICR 26		/* interval count */
#define TODR 27		/* time of year (day) */
#define RXCS 32		/* console receiver control and status */
#define RXDB 33		/* console receiver data buffer */
#define TXCS 34		/* console transmitter control and status */
#define TXDB 35		/* console transmitter data buffer */
#define MAPEN 56	/* memory management enable */
#define TBIA 57		/* translation buffer invalidate all */
#define TBIS 58		/* translation buffer invalidate single */
#define PMR 61		/* performance monitor enable */
#define SID 62		/* system identification */
/*
 	VAX-11/780 specific registers
 */
#define ACCS 40		/* accelerator control and status */
#define ACCR 41		/* accelerator maintenance */
#define WCSA 44		/* WCS address */
#define WCSD 45		/* WCS data */
#define SBIFS 48	/* SBI fault and status */
#define SBIS 49		/* SBI silo */
#define SBISC 50	/* SBI silo comparator */
#define SBIMT 51	/* SBI maintenance */
#define SBIER 52	/* SBI error register */
#define SBITA 53	/* SBI timeout address */
#define SBIQC 54	/* SBI quadword clear */
#define MBRK 60		/* micro-program breakpoint */