From d332c6ee126870aa3413de8d96e493b527559181 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Wed, 8 Feb 2023 01:17:39 -0800
Subject: Implement getlocal_WC_1

---
 lib/ruby_vm/mjit/assembler.rb | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'lib/ruby_vm/mjit/assembler.rb')

diff --git a/lib/ruby_vm/mjit/assembler.rb b/lib/ruby_vm/mjit/assembler.rb
index f2cd90a789..5f2873b09f 100644
--- a/lib/ruby_vm/mjit/assembler.rb
+++ b/lib/ruby_vm/mjit/assembler.rb
@@ -101,6 +101,23 @@ module RubyVM::MJIT
       end
     end
 
+    def and(dst, src)
+      case [dst, src]
+      # AND r/m64, imm8 (Mod 11: reg)
+      in [Symbol => dst_reg, Integer => src_imm] if r64?(dst_reg) && imm8?(src_imm)
+        # REX.W + 83 /4 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: 4, rm: dst_reg],
+          imm: imm8(src_imm),
+        )
+      else
+        raise NotImplementedError, "and: not-implemented operands: #{dst.inspect}, #{src.inspect}"
+      end
+    end
+
     # @param addr [Integer]
     def call(addr)
       # CALL rel32
-- 
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