diff options
Diffstat (limited to 'lib/ruby_vm/mjit/assembler.rb')
| -rw-r--r-- | lib/ruby_vm/mjit/assembler.rb | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/ruby_vm/mjit/assembler.rb b/lib/ruby_vm/mjit/assembler.rb index c9f179c3b9..6fd5d12bd8 100644 --- a/lib/ruby_vm/mjit/assembler.rb +++ b/lib/ruby_vm/mjit/assembler.rb @@ -387,6 +387,16 @@ module RubyVM::MJIT def sub(dst, src) case [dst, src] + # SUB r/m64, imm8 + in [Symbol => dst_reg, Integer => src_imm] if r64?(dst_reg) && imm8?(src_imm) + # REX.W + 83 /5 ib + # MI: Operand 1: ModRM:r/m (r, w), Operand 2: imm8/16/32 + insn( + prefix: REX_W, + opcode: 0x83, + mod_rm: ModRM[mod: Mod11, reg: 5, rm: dst_reg], + imm: imm8(src_imm), + ) # SUB r/m64, r64 (Mod 11: reg) in [Symbol => dst_reg, Symbol => src_reg] if r64?(dst_reg) && r64?(src_reg) # REX.W + 29 /r |