67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
"""
|
|
Intel Encodings.
|
|
"""
|
|
from __future__ import absolute_import
|
|
from base import instructions as base
|
|
from .defs import I32
|
|
from . import recipes as r
|
|
|
|
I32.enc(base.iadd.i32, *r.rr(0x01))
|
|
I32.enc(base.isub.i32, *r.rr(0x29))
|
|
|
|
I32.enc(base.band.i32, *r.rr(0x21))
|
|
I32.enc(base.bor.i32, *r.rr(0x09))
|
|
I32.enc(base.bxor.i32, *r.rr(0x31))
|
|
|
|
# Immediate instructions with sign-extended 8-bit and 32-bit immediate.
|
|
for inst, rrr in [
|
|
(base.iadd_imm.i32, 0),
|
|
(base.band_imm.i32, 4),
|
|
(base.bor_imm.i32, 1),
|
|
(base.bxor_imm.i32, 6)]:
|
|
I32.enc(inst, *r.rib(0x83, rrr=rrr))
|
|
I32.enc(inst, *r.rid(0x81, rrr=rrr))
|
|
|
|
# Immediate constant.
|
|
I32.enc(base.iconst.i32, *r.uid(0xb8))
|
|
|
|
# 32-bit shifts and rotates.
|
|
# Note that the dynamic shift amount is only masked by 5 or 6 bits; the 8-bit
|
|
# and 16-bit shifts would need explicit masking.
|
|
I32.enc(base.ishl.i32.i32, *r.rc(0xd3, rrr=4))
|
|
I32.enc(base.ushr.i32.i32, *r.rc(0xd3, rrr=5))
|
|
I32.enc(base.sshr.i32.i32, *r.rc(0xd3, rrr=7))
|
|
|
|
# Loads and stores.
|
|
I32.enc(base.store.i32.i32, *r.st(0x89))
|
|
I32.enc(base.store.i32.i32, *r.stDisp8(0x89))
|
|
I32.enc(base.store.i32.i32, *r.stDisp32(0x89))
|
|
|
|
I32.enc(base.istore16.i32.i32, *r.st(0x66, 0x89))
|
|
I32.enc(base.istore16.i32.i32, *r.stDisp8(0x66, 0x89))
|
|
I32.enc(base.istore16.i32.i32, *r.stDisp32(0x66, 0x89))
|
|
|
|
I32.enc(base.istore8.i32.i32, *r.st_abcd(0x88))
|
|
I32.enc(base.istore8.i32.i32, *r.stDisp8_abcd(0x88))
|
|
I32.enc(base.istore8.i32.i32, *r.stDisp32_abcd(0x88))
|
|
|
|
I32.enc(base.load.i32.i32, *r.ld(0x8b))
|
|
I32.enc(base.load.i32.i32, *r.ldDisp8(0x8b))
|
|
I32.enc(base.load.i32.i32, *r.ldDisp32(0x8b))
|
|
|
|
I32.enc(base.uload16.i32.i32, *r.ld(0x0f, 0xb7))
|
|
I32.enc(base.uload16.i32.i32, *r.ldDisp8(0x0f, 0xb7))
|
|
I32.enc(base.uload16.i32.i32, *r.ldDisp32(0x0f, 0xb7))
|
|
|
|
I32.enc(base.sload16.i32.i32, *r.ld(0x0f, 0xbf))
|
|
I32.enc(base.sload16.i32.i32, *r.ldDisp8(0x0f, 0xbf))
|
|
I32.enc(base.sload16.i32.i32, *r.ldDisp32(0x0f, 0xbf))
|
|
|
|
I32.enc(base.uload8.i32.i32, *r.ld(0x0f, 0xb6))
|
|
I32.enc(base.uload8.i32.i32, *r.ldDisp8(0x0f, 0xb6))
|
|
I32.enc(base.uload8.i32.i32, *r.ldDisp32(0x0f, 0xb6))
|
|
|
|
I32.enc(base.sload8.i32.i32, *r.ld(0x0f, 0xbe))
|
|
I32.enc(base.sload8.i32.i32, *r.ldDisp8(0x0f, 0xbe))
|
|
I32.enc(base.sload8.i32.i32, *r.ldDisp32(0x0f, 0xbe))
|