Awesome
x86-zig
A library for assembling x86 instructions written in zig.
Example
const warn = @import("std").debug.warn;
const x86 = @import("src/x86.zig");
pub fn main() anyerror!void {
const machine64 = x86.Machine.init(.x64);
// MOV RAX, R15
{
const op1 = x86.Operand.register(.RAX);
const op2 = x86.Operand.register(.R15);
const instr = try machine64.build2(.MOV, op1, op2);
warn("{x}\t\t\tMOV\t\t{}, {}\n", .{instr.asSlice(), op1, op2});
}
// LOCK MOV DWORD PTR FS:[8*ECX + EBX + 0x33221100], EAX
{
const op1 = x86.Operand.memorySib(.FS, .DWORD, 8, .ECX, .EBX, 0x33221100);
const op2 = x86.Operand.register(.EAX);
const instr = try machine64.build2_pre(.Lock, .MOV, op1, op2);
warn("{x}\tLOCK MOV\t{}, {}\n", .{instr.asSlice(), op1, op2});
}
// JMP -20
{
const op1 = x86.Operand.immediateSigned(-20);
const instr = try machine64.build1(.JMP, op1);
warn("{x}\t\t\tJMP\t\t{}\n", .{instr.asSlice(), op1});
}
}
Building examples
example-hello
Assembles, loads to RAM, and executes a simple hello world program (Linux-x64).
zig build example-hello
License
Licensed under either of
- Public domain (UNLICENSE or https://unlicense.org/)
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
at your option.