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/* moxie-opc.c -- Definitions for moxie opcodes.
Copyright 2009 Free Software Foundation, Inc.
Contributed by Anthony Green (green@moxielogic.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. */
#include "sysdep.h"
#include "opcode/moxie.h"
/* The moxie processor's 16-bit instructions come in two forms:
FORM 1 instructions start with a 0 bit...
0oooooooaaaabbbb
0 F
ooooooo - form 1 opcode number
aaaa - operand A
bbbb - operand B
FORM 2 instructions start with bits "10"...
10ooaaaavvvvvvvv
0 F
oo - form 2 opcode number
aaaa - operand A
vvvvvvvv - 8-bit immediate value
FORM 3 instructions start with a bits "11"...
11oooovvvvvvvvvv
0 F
oooo - form 3 opcode number
vvvvvvvvvv - 10-bit immediate value. */
/* Note that currently two opcodes are reserved as bad, so that all
instructions starting with 0x00 and 0xff fault. */
const moxie_opc_info_t moxie_form1_opc_info[64] =
{
{ 0x00, MOXIE_F1_NARG, "bad" }, // Reserved as bad.
{ 0x01, MOXIE_F1_A4, "ldi.l" },
{ 0x02, MOXIE_F1_AB, "mov" },
{ 0x03, MOXIE_F1_M, "jsra" },
{ 0x04, MOXIE_F1_NARG, "ret" },
{ 0x05, MOXIE_F1_AB, "add.l" },
{ 0x06, MOXIE_F1_AB, "push" },
{ 0x07, MOXIE_F1_AB, "pop" },
{ 0x08, MOXIE_F1_A4, "lda.l" },
{ 0x09, MOXIE_F1_4A, "sta.l" },
{ 0x0a, MOXIE_F1_ABi, "ld.l" },
{ 0x0b, MOXIE_F1_AiB, "st.l" },
{ 0x0c, MOXIE_F1_ABi4, "ldo.l" },
{ 0x0d, MOXIE_F1_AiB4, "sto.l" },
{ 0x0e, MOXIE_F1_AB, "cmp" },
{ 0x0f, MOXIE_F1_NARG, "nop" },
{ 0x10, MOXIE_F1_NARG, "bad" },
{ 0x11, MOXIE_F1_NARG, "bad" },
{ 0x12, MOXIE_F1_NARG, "bad" },
{ 0x13, MOXIE_F1_NARG, "bad" },
{ 0x14, MOXIE_F1_NARG, "bad" },
{ 0x15, MOXIE_F1_NARG, "bad" },
{ 0x16, MOXIE_F1_NARG, "bad" },
{ 0x17, MOXIE_F1_NARG, "bad" },
{ 0x18, MOXIE_F1_NARG, "bad" },
{ 0x19, MOXIE_F1_A, "jsr" },
{ 0x1a, MOXIE_F1_M, "jmpa" },
{ 0x1b, MOXIE_F1_A4, "ldi.b" },
{ 0x1c, MOXIE_F1_ABi, "ld.b" },
{ 0x1d, MOXIE_F1_A4, "lda.b" },
{ 0x1e, MOXIE_F1_AiB, "st.b" },
{ 0x1f, MOXIE_F1_4A, "sta.b" },
{ 0x20, MOXIE_F1_A4, "ldi.s" },
{ 0x21, MOXIE_F1_ABi, "ld.s" },
{ 0x22, MOXIE_F1_A4, "lda.s" },
{ 0x23, MOXIE_F1_AiB, "st.s" },
{ 0x24, MOXIE_F1_4A, "sta.s" },
{ 0x25, MOXIE_F1_A, "jmp" },
{ 0x26, MOXIE_F1_AB, "and" },
{ 0x27, MOXIE_F1_AB, "lshr" },
{ 0x28, MOXIE_F1_AB, "ashl" },
{ 0x29, MOXIE_F1_AB, "sub.l" },
{ 0x2a, MOXIE_F1_AB, "neg" },
{ 0x2b, MOXIE_F1_AB, "or" },
{ 0x2c, MOXIE_F1_AB, "not" },
{ 0x2d, MOXIE_F1_AB, "ashr" },
{ 0x2e, MOXIE_F1_AB, "xor" },
{ 0x2f, MOXIE_F1_AB, "mul.l" },
{ 0x30, MOXIE_F1_4, "swi" },
{ 0x31, MOXIE_F1_AB, "div.l" },
{ 0x32, MOXIE_F1_AB, "udiv.l" },
{ 0x33, MOXIE_F1_AB, "mod.l" },
{ 0x34, MOXIE_F1_AB, "umod.l" },
{ 0x35, MOXIE_F1_NARG, "brk" },
{ 0x36, MOXIE_F1_ABi4, "ldo.b" },
{ 0x37, MOXIE_F1_AiB4, "sto.b" },
{ 0x38, MOXIE_F1_ABi4, "ldo.s" },
{ 0x39, MOXIE_F1_AiB4, "sto.s" },
{ 0x3a, MOXIE_F1_NARG, "bad" },
{ 0x3b, MOXIE_F1_NARG, "bad" },
{ 0x3c, MOXIE_F1_NARG, "bad" },
{ 0x3d, MOXIE_F1_NARG, "bad" },
{ 0x3e, MOXIE_F1_NARG, "bad" },
{ 0x3f, MOXIE_F1_NARG, "bad" }
};
const moxie_opc_info_t moxie_form2_opc_info[4] =
{
{ 0x00, MOXIE_F2_A8V, "inc" },
{ 0x01, MOXIE_F2_A8V, "dec" },
{ 0x02, MOXIE_F2_A8V, "gsr" },
{ 0x03, MOXIE_F2_A8V, "ssr" }
};
const moxie_opc_info_t moxie_form3_opc_info[16] =
{
{ 0x00, MOXIE_F3_PCREL,"beq" },
{ 0x01, MOXIE_F3_PCREL,"bne" },
{ 0x02, MOXIE_F3_PCREL,"blt" },
{ 0x03, MOXIE_F3_PCREL,"bgt" },
{ 0x04, MOXIE_F3_PCREL,"bltu" },
{ 0x05, MOXIE_F3_PCREL,"bgtu" },
{ 0x06, MOXIE_F3_PCREL,"bge" },
{ 0x07, MOXIE_F3_PCREL,"ble" },
{ 0x08, MOXIE_F3_PCREL,"bgeu" },
{ 0x09, MOXIE_F3_PCREL,"bleu" },
{ 0x0a, MOXIE_F3_NARG, "bad" },
{ 0x0b, MOXIE_F3_NARG, "bad" },
{ 0x0c, MOXIE_F3_NARG, "bad" },
{ 0x0d, MOXIE_F3_NARG, "bad" },
{ 0x0e, MOXIE_F3_NARG, "bad" },
{ 0x0f, MOXIE_F3_NARG, "bad" } // Reserved as bad.
};
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