1 /* psl.h 4.1 11/09/80 */ 2 3 /* 4 * VAX program status longword 5 */ 6 7 #define PSL_C 0x1 /* carry bit */ 8 #define PSL_V 0x2 /* overflow bit */ 9 #define PSL_Z 0x4 /* zero bit */ 10 #define PSL_N 0x8 /* negative bit */ 11 #define PSL_ALLCC 0xf /* all cc bits - unlikely */ 12 #define PSL_T 0x10 /* trace enable bit */ 13 #define PSL_IV 0x20 /* integer overflow enable bit */ 14 #define PSL_FU 0x40 /* floating point underflow enable */ 15 #define PSL_DV 0x80 /* decimal overflow enable bit */ 16 #define PSL_IPL 0x1f0000 /* interrupt priority level */ 17 #define PSL_PRVMOD 0xc00000 /* previous mode (all on is user) */ 18 #define PSL_CURMOD 0x3000000 /* current mode (all on is user) */ 19 #define PSL_IS 0x4000000 /* interrupt stack */ 20 #define PSL_FPD 0x8000000 /* first part done */ 21 #define PSL_TP 0x40000000 /* trace pending */ 22 #define PSL_CM 0x80000000 /* compatibility mode */ 23 #define PSL_USERCLR 0x3c20ff00 /* bits must be clear in user mode */ 24