1 /* psl.h 6.1 83/07/29 */ 2 3 /* 4 * VAX program status longword 5 */ 6 7 #define PSL_C 0x00000001 /* carry bit */ 8 #define PSL_V 0x00000002 /* overflow bit */ 9 #define PSL_Z 0x00000004 /* zero bit */ 10 #define PSL_N 0x00000008 /* negative bit */ 11 #define PSL_ALLCC 0x0000000f /* all cc bits - unlikely */ 12 #define PSL_T 0x00000010 /* trace enable bit */ 13 #define PSL_IV 0x00000020 /* integer overflow enable bit */ 14 #define PSL_FU 0x00000040 /* floating point underflow enable */ 15 #define PSL_DV 0x00000080 /* decimal overflow enable bit */ 16 #define PSL_IPL 0x001f0000 /* interrupt priority level */ 17 #define PSL_PRVMOD 0x00c00000 /* previous mode (all on is user) */ 18 #define PSL_CURMOD 0x03000000 /* current mode (all on is user) */ 19 #define PSL_IS 0x04000000 /* interrupt stack */ 20 #define PSL_FPD 0x08000000 /* first part done */ 21 #define PSL_TP 0x40000000 /* trace pending */ 22 #define PSL_CM 0x80000000 /* compatibility mode */ 23 24 #define PSL_MBZ 0x3020ff00 /* must be zero bits */ 25 26 #define PSL_USERSET (PSL_PRVMOD|PSL_CURMOD) 27 #define PSL_USERCLR (PSL_IS|PSL_IPL|PSL_MBZ) 28