/* xgate.h -- Freescale XGATE opcode list Copyright (C) 2010-2022 Free Software Foundation, Inc. Written by Sean Keys (skeys@ipdatasys.com) This file is part of the GNU opcodes library. This library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. It is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this file; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _OPCODE_XGATE_H #define _OPCODE_XGATE_H /* XGATE CCR flag definitions. */ #define XGATE_N_BIT 0x08 /* XGN - Sign Flag */ #define XGATE_Z_BIT 0x04 /* XGZ - Zero Flag */ #define XGATE_V_BIT 0x02 /* XGV - Overflow Flag */ #define XGATE_C_BIT 0x01 /* XGC - Carry Flag */ /* Access Detail Notation V - Vector fetch: always an aligned word read, lasts for at least one RISC core cycle P - Program word fetch: always an aligned word read, lasts for at least one RISC core cycle r - 8-bit data read: lasts for at least one RISC core cycle R - 16-bit data read: lasts for at least one RISC core cycle w - 8-bit data write: lasts for at least one RISC core cycle W - 16-bit data write: lasts for at least one RISC core cycle A - Alignment cycle: no read or write, lasts for zero or one RISC core cycles f - Free cycle: no read or write, lasts for one RISC core cycles. */ #define XGATE_CYCLE_V 0x01 #define XGATE_CYCLE_P 0x02 #define XGATE_CYCLE_r 0x04 #define XGATE_CYCLE_R 0x08 #define XGATE_CYCLE_w 0x10 #define XGATE_CYCLE_W 0x20 #define XGATE_CYCLE_A 0x40 #define XGATE_CYCLE_f 0x80 /* XGATE operand formats as stored in the XGATE_opcode table. They are only used by GAS to recognize operands. */ #define XGATE_OP_INH "" /* Inherent. */ #define XGATE_OP_TRI "r,r,r" /* Register followed by two registers. */ #define XGATE_OP_DYA "r,r" /* Register followed by a register. */ #define XGATE_OP_IMM16 "r,if" /* Register followed by 16-bit value. */ #define XGATE_OP_IMM8 "r,i8" /* Register followed by 8-bit value. */ #define XGATE_OP_IMM4 "r,i4" /* Register followed by 4-bit value. */ #define XGATE_OP_IMM3 "i3" /* Register followed by 3-bit value. */ #define XGATE_OP_MON "r" /* Single register. */ #define XGATE_OP_MON_R_C "r,c" /* General register followed by ccr register. */ #define XGATE_OP_MON_C_R "c,r" /* CCR register followed by a general register. */ #define XGATE_OP_MON_R_P "r,p" /* General register followed by pc register. */ #define XGATE_OP_IDR "r,r,+" /* Three registers with the third having a -/+ directive. */ #define XGATE_OP_IDO5 "r,r,i5" /* Two general registers followed by an immediate value. */ #define XGATE_OP_REL9 "b9" /* 9-bit value that is relative to the current pc. */ #define XGATE_OP_REL10 "ba" /* 10-bit value that is relative to the current pc. */ #define XGATE_OP_DYA_MON "=r" /* Macro definitions. */ #define XGATE_OP_IMM16mADD "r,if; addl addh" #define XGATE_OP_IMM16mAND "r,if; andl andh" #define XGATE_OP_IMM16mCPC "r,if; cmpl cpch" #define XGATE_OP_IMM16mSUB "r,if; subl subh" #define XGATE_OP_IMM16mLDW "r,if; ldl ldh" /* CPU variant identification. */ #define XGATE_V1 0x1 #define XGATE_V2 0x2 #define XGATE_V3 0x4 /* The opcode table definitions. */ struct xgate_opcode { char * name; /* Op-code name. */ char * constraints; /* Constraint chars. */ char * format; /* Bit definitions. */ unsigned int size; /* Opcode size in bytes. */ unsigned int bin_opcode; /* Binary opcode with operands masked off. */ unsigned char cycles_min; /* Minimum cpu cycles needed. */ unsigned char cycles_max; /* Maximum cpu cycles needed. */ unsigned char set_flags_mask; /* CCR flags set. */ unsigned char clr_flags_mask; /* CCR flags cleared. */ unsigned char chg_flags_mask; /* CCR flags changed. */ unsigned char arch; /* CPU variant. */ }; /* The opcode table. The table contains all the opcodes (all pages). You can't rely on the order. */ extern const struct xgate_opcode xgate_opcodes[]; extern const int xgate_num_opcodes; #endif /* _OPCODE_XGATE_H */ |