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Add subtract and logical instruction encodings to Intel-32.

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Also add versions with 8-bit and 32-bit immediate operands.
This commit is contained in:
Jakob Stoklund Olesen
2017-05-12 10:35:18 -07:00
parent 3aaa8b2f91
commit c998df6274
5 changed files with 117 additions and 10 deletions
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16
lib/cretonne/meta/isa/intel/encodings.py
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@@ -4,10 +4,24 @@ Intel Encodings.
from __future__ import absolute_import
from base import instructions as base
from .defs import I32
from .recipes import Op1rr, Op1rc
from .recipes import Op1rr, Op1rc, Op1rib, Op1rid
from .recipes import OP
I32.enc(base.iadd.i32, Op1rr, OP(0x01))
I32.enc(base.isub.i32, Op1rr, OP(0x29))
I32.enc(base.band.i32, Op1rr, OP(0x21))
I32.enc(base.bor.i32, Op1rr, OP(0x09))
I32.enc(base.bxor.i32, Op1rr, OP(0x31))
# Immediate instructions with sign-extended 8-bit and 32-bit immediate.
for inst, r in [
(base.iadd_imm.i32, 0),
(base.band_imm.i32, 4),
(base.bor_imm.i32, 1),
(base.bxor_imm.i32, 6)]:
I32.enc(inst, Op1rib, OP(0x83, rrr=r))
I32.enc(inst, Op1rid, OP(0x81, rrr=r))
# 32-bit shifts and rotates.
# Note that the dynamic shift amount is only masked by 5 or 6 bits; the 8-bit