luaur-code-gen 0.1.0

Native (A64/X64) code generation for Luau (Rust).
Documentation 
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use crate::enums::ir_cmd::IrCmd;
use crate::records::ir_builder::IrBuilder;
use crate::type_aliases::instruction_ir_translation::Instruction;
use luaur_common::macros::luau_insn_a::LUAU_INSN_A;
use luaur_common::macros::luau_insn_b::LUAU_INSN_B;
use luaur_common::macros::luau_insn_c::LUAU_INSN_C;

pub fn translate_inst_concat(build: &mut IrBuilder, pc: *const Instruction, pcpos: i32) {
    let insn = unsafe { *pc };
    let ra = LUAU_INSN_A(insn) as u8;
    let rb = LUAU_INSN_B(insn) as u8;
    let rc = LUAU_INSN_C(insn) as u8;

    let savedpc_arg = build.const_uint((pcpos + 1) as u32);
    build.inst_ir_cmd_ir_op(IrCmd::SET_SAVEDPC, savedpc_arg);

    let concat_arg1 = build.vm_reg(rb);
    let concat_arg2 = build.const_uint((rc as i32 - rb as i32 + 1) as u32);
    build.inst_ir_cmd_ir_op_ir_op(IrCmd::CONCAT, concat_arg1, concat_arg2);

    let load_tvalue_arg = build.vm_reg(rb);
    let tvb = build.inst_ir_cmd_ir_op(IrCmd::LOAD_TVALUE, load_tvalue_arg);
    let store_tvalue_arg1 = build.vm_reg(ra);
    build.inst_ir_cmd_ir_op_ir_op(IrCmd::STORE_TVALUE, store_tvalue_arg1, tvb);

    build.inst_ir_cmd(IrCmd::CHECK_GC);
}