From 6142db864714572ebab318b71b09f5403352c6b1 Mon Sep 17 00:00:00 2001
From: Yang Liu <liuyang22@iscas.ac.cn>
Date: Mon, 19 Feb 2024 14:00:52 +0800
Subject: [PATCH] backend/rv64: Implement GetCFlagFromNZCV

---
 src/dynarmic/backend/riscv64/emit_riscv64.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/dynarmic/backend/riscv64/emit_riscv64.cpp b/src/dynarmic/backend/riscv64/emit_riscv64.cpp
index 32a5506b..f9302821 100644
--- a/src/dynarmic/backend/riscv64/emit_riscv64.cpp
+++ b/src/dynarmic/backend/riscv64/emit_riscv64.cpp
@@ -93,8 +93,15 @@ void EmitIR<IR::Opcode::GetLowerFromOp>(biscuit::Assembler&, EmitContext&, IR::I
 }
 
 template<>
-void EmitIR<IR::Opcode::GetCFlagFromNZCV>(biscuit::Assembler&, EmitContext&, IR::Inst*) {
-    UNIMPLEMENTED();
+void EmitIR<IR::Opcode::GetCFlagFromNZCV>(biscuit::Assembler& as, EmitContext& ctx, IR::Inst* inst) {
+    auto args = ctx.reg_alloc.GetArgumentInfo(inst);
+
+    auto Xc = ctx.reg_alloc.WriteX(inst);
+    auto Xnzcv = ctx.reg_alloc.ReadX(args[0]);
+    RegAlloc::Realize(Xc, Xnzcv);
+
+    as.LUI(Xscratch0, 0x20000);
+    as.AND(Xc, Xnzcv, Xscratch0);
 }
 
 template<>