From 58a1e4cc63eda18bbb8bd62261cfd112fa4e3dca Mon Sep 17 00:00:00 2001
From: Macdu <Macdu@users.noreply.github.com>
Date: Sun, 16 Oct 2022 22:50:07 +0200
Subject: [PATCH] Implement CallHostFunction

---
 src/dynarmic/backend/arm64/emit_arm64.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/dynarmic/backend/arm64/emit_arm64.cpp b/src/dynarmic/backend/arm64/emit_arm64.cpp
index 2a92e6ff..91dd28ce 100644
--- a/src/dynarmic/backend/arm64/emit_arm64.cpp
+++ b/src/dynarmic/backend/arm64/emit_arm64.cpp
@@ -38,10 +38,11 @@ void EmitIR<IR::Opcode::Breakpoint>(oaknut::CodeGenerator& code, EmitContext&, I
 
 template<>
 void EmitIR<IR::Opcode::CallHostFunction>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) {
-    (void)code;
-    (void)ctx;
-    (void)inst;
-    ASSERT_FALSE("Unimplemented");
+    auto args = ctx.reg_alloc.GetArgumentInfo(inst);
+
+    ctx.reg_alloc.PrepareForCall(nullptr, args[1], args[2], args[3]);
+    code.MOV(Xscratch0, args[0].GetImmediateU64());
+    code.BLR(Xscratch0);
 }
 
 template<>