How can I compile a set of ASM instructions in X86 Encoder Decoder (XED) syntax-CodePudding

I need to generate random ASM instructions. I found a really helpful XML file from UOPS which makes the random instruction generator program really simple. However, the XML file provides the instructions in Intel's X86 Encoder Decoder (XED) syntax, and I wanted to know if there is a way to compile them to an executable as you would with a NASM or MASM program.

The list of instructions would look something like this:

DEC R8W
LOCK ADC byte ptr [0xB8], 0x82
IN AX, DX
BTR qword ptr [RBX], 0xF7
IN EAX, DX
ADD RAX, 0x25C9FB2C
LOCK BTC qword ptr [RBP], 0xA5
CMOVBE ESI, R10D
{load} MOV CH, DL

I'm using Ubuntu 22.04

CodePudding user response：

The instructions generated from the XML file are intended to be used with the Gnu assembler (in Intel syntax mode).

You have to add the line .intel_syntax noprefix to the beginning of your file:

.intel_syntax noprefix

DEC R8W
LOCK ADC byte ptr [0xB8], 0x82
IN AX, DX
BTR qword ptr [RBX], 0xF7
IN EAX, DX
ADD RAX, 0x25C9FB2C
LOCK BTC qword ptr [RBP], 0xA5
CMOVBE ESI, R10D
{load} MOV CH, DL

Then, you can generate an executable by running as <filename>.