From 46bd1c99a9fb3099ab9688ce43669cb7bc154a2a Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Thu, 18 Oct 2007 22:41:18 -0700 Subject: X86: Implement the XLAT instruction. --HG-- extra : convert_revision : 22d7d9e79e722293b4dc1e66d8610301dc04c5fa --- .../isa/insts/general_purpose/data_conversion/translate.py | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'src/arch/x86/isa/insts/general_purpose/data_conversion') diff --git a/src/arch/x86/isa/insts/general_purpose/data_conversion/translate.py b/src/arch/x86/isa/insts/general_purpose/data_conversion/translate.py index bb286b976..c2ccb9d19 100644 --- a/src/arch/x86/isa/insts/general_purpose/data_conversion/translate.py +++ b/src/arch/x86/isa/insts/general_purpose/data_conversion/translate.py @@ -53,8 +53,12 @@ # # Authors: Gabe Black -microcode = "" -#let {{ -# class XLAT(Inst): -# "GenFault ${new UnimpInstFault}" -#}}; +microcode = ''' +def macroop XLAT { + zext t1, rax, 8 + # Here, t1 can be used directly. The value of al is supposed to be treated + # as unsigned. Since we zero extended it from 8 bits above and the address + # size has to be at least 16 bits, t1 will not be sign extended. + ld rax, seg, [1, rbx, t1], dataSize=1 +}; +''' -- cgit v1.2.3