/emei

The 峨眉 (EMei) JIT/AOT backend framework.

Primary LanguageRustGNU General Public License v3.0GPL-3.0

emei

The 峨眉 (EMei) JIT/AOT backend codegen framework.

Support Instructions

risc-v

  • rv32i
    • m extension
    • a extension
    • f extension
    • d extension
    • c extension
    • v extension
    • p extension
  • rv64i
    • m extension
    • a extension
    • f extension
    • d extension
    • c extension
    • v extension
    • p extension

Please refer to the riscv arch manual.

x86_64

warning: x86_64 only supported little ending byte array output.

warning: unsupported x87 fpu float operator.

insts rule

inst dst, src=inst(src, dst)

insts

  • mov

    • mov
    • mov_zero_extend_bit8/16
    • mov_sign_extend_bit8/16/32
    • mov_rev
    • movs(is movsq)

  • push

    • push_reg
    • push_imm
    • push_all pusha/pushad

  • add

    • add_first_reg
    • add_imm8
    • add_imm32
    • add
    • inc
    • inc_reg32

  • sub

    • sub_first_reg
    • sub_signed_imm8
    • sub_imm(32)
    • sub
    • sub_rev
    • dec
    • dec_reg32

  • mul

  • div

  • cmp

  • test

  • jump

    • jmp
      • jmp to relative addr
      • jmp to addr literal (jit use it)
      • jmp to register
    • jump cond code
      • /ja/jb/jc/je/jg/jl/jo/jp/js/jz/jae/jbe/jge/jle/jpe/jpo/jna/jnb/jnc/jne/jng/jnl/jno/jnp/jns/jnz/jnae/jnbe/jnge/jnle

  • call

    • call to relative addr
    • call to addr literal (jit use it)
    • call to register

  • ret

    • near_ret/near_ret_imm
    • far_ret/far_ret_imm

  • nop

    • nop(nop1)
    • nop1-9

about headware inference

  • int

    • intn
    • into
    • int3
    • int1

  • syscall

    • syscall
    • sysenter

sse float instruction

  • movss/movsd
  • addss/addsd
  • subss/subsd
  • mulss/mulsd
  • divss/divsd
  • sqrtss/sqrtsd
  • cmpss/cmpsd

sse simd instruction

  • movupd/movupd_rev

Example

look src/lib.rs.