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1.1 ! root 1: /* ! 2: * operand.h -- definitions useful to VAX operand decoding ! 3: * @(#)operand.h 1.1 ! 4: */ ! 5: ! 6: #define opmode(op) (op & 0xf0) ! 7: #define opregn(op) (op & 0xf) ! 8: ! 9: /* ! 10: * operand modes ! 11: */ ! 12: #define LITERAL0 0x00 ! 13: #define LITERAL1 0x10 ! 14: #define LITERAL2 0x20 ! 15: #define LITERAL3 0x30 ! 16: #define INDEXED 0x40 ! 17: #define REGISTER 0x50 ! 18: #define REGDEFERED 0x60 ! 19: #define AUTODEC 0x70 ! 20: #define AUTOINC 0x80 ! 21: #define AUTOINCDEF 0x90 ! 22: #define BYTEDISP 0xa0 ! 23: #define BYTEDISPDEF 0xb0 ! 24: #define WORDDISP 0xc0 ! 25: #define WORDDISPDEF 0xd0 ! 26: #define LONGDISP 0xe0 ! 27: #define LONGDISPDEF 0xf0 ! 28: /* ! 29: * Modes where R is PC ! 30: */ ! 31: #define IMMEDIATE 0x8f ! 32: #define ABSOLUTE 0x9f ! 33: #define BYTEREL 0xaf ! 34: #define BYTERELDEF 0xbf ! 35: #define WORDREL 0xcf ! 36: #define WORDRELDEF 0xdf ! 37: #define LONGREL 0xef ! 38: #define LONGRELDEF 0xff ! 39: ! 40: /* ! 41: * register definitions ! 42: */ ! 43: #define R0 0 ! 44: #define R1 1 ! 45: #define R2 2 ! 46: #define R3 3 ! 47: #define R4 4 ! 48: #define R5 5 ! 49: #define R6 6 ! 50: #define R7 7 ! 51: #define R8 8 ! 52: #define R9 9 ! 53: #define R10 10 ! 54: #define R11 11 ! 55: #define AP 12 ! 56: #define FP 13 ! 57: #define SP 14 ! 58: #define PC 15
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