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- /*
- * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
- * See the copyright notice in the ACK home directory, in the file "Copyright".
- */
- /* Contents of flags used when describing interpreter opcodes */
- #define RCS_IP "$Id$"
- #define OPTYPE 07 /* type field in flag */
- #define OPMINI 0 /* m MINI */
- #define OPSHORT 1 /* s SHORT */
- #define OPNO 2 /* - No operand */
- #define OP8 3 /* 1 1-byte signed operand */
- #define OP16 4 /* 2 2-byte signed operand */
- #define OP32 5 /* 4 4-byte signed operand */
- #define OP64 6 /* 8 8-byte signed operand */
- #define OP16U 7 /* u 2-byte unsigned operand */
- #define OPESC 010 /* e escaped opcode */
- #define OPWORD 020 /* w operand is word multiple */
- #define OPNZ 040 /* o operand starts at 1 ( or wordsize if w-flag) */
- #define OPRANGE 0300 /* Range of operands: Positive, negative, both */
- #define OP_BOTH 0000 /* the default */
- #define OP_POS 0100 /* p Positive (>=0) operands only */
- #define OP_NEG 0200 /* n Negative (<0) operands only */
- struct opform {
- char i_opcode ; /* the opcode number */
- char i_flag ; /* the flag byte */
- char i_low ; /* the interpreter first opcode */
- char i_num ; /* the number of shorts/minis (optional) */
- };
- /* Escape indicators */
- #define ESC 254 /* To escape group */
- #define ESC_L 255 /* To 32 and 64 bit operands */
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