From fe5064d532011bea705693594015d70c5ce2d726 Mon Sep 17 00:00:00 2001
From: Johannes Stoelp <johannes.stoelp@gmail.com>
Date: Wed, 13 Dec 2023 00:10:30 +0100
Subject: asm: add push/pop insn

---
 src/insn.rs      | 14 ++++++++++++++
 src/insn/pop.rs  | 14 ++++++++++++++
 src/insn/push.rs | 14 ++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 src/insn/pop.rs
 create mode 100644 src/insn/push.rs

(limited to 'src')

diff --git a/src/insn.rs b/src/insn.rs
index c7e6e7e..60004d2 100644
--- a/src/insn.rs
+++ b/src/insn.rs
@@ -9,6 +9,8 @@ mod jnz;
 mod jz;
 mod mov;
 mod nop;
+mod pop;
+mod push;
 mod ret;
 mod test;
 
@@ -63,6 +65,18 @@ pub trait Mov<T, U> {
     fn mov(&mut self, op1: T, op2: U);
 }
 
+/// Trait for [`push`](https://www.felixcloutier.com/x86/push) instruction kinds.
+pub trait Push<T> {
+    /// Emit a push instruction.
+    fn push(&mut self, op1: T);
+}
+
+/// Trait for [`pop`](https://www.felixcloutier.com/x86/pop) instruction kinds.
+pub trait Pop<T> {
+    /// Emit a pop instruction.
+    fn pop(&mut self, op1: T);
+}
+
 /// Trait for [`test`](https://www.felixcloutier.com/x86/test) instruction kinds.
 pub trait Test<T, U> {
     /// Emit a logical compare instruction.
diff --git a/src/insn/pop.rs b/src/insn/pop.rs
new file mode 100644
index 0000000..c8cc5b5
--- /dev/null
+++ b/src/insn/pop.rs
@@ -0,0 +1,14 @@
+use super::Pop;
+use crate::{Asm, Reg16, Reg64};
+
+impl Pop<Reg64> for Asm {
+    fn pop(&mut self, op1: Reg64) {
+        self.encode_r(0x8f, 0x0, op1);
+    }
+}
+
+impl Pop<Reg16> for Asm {
+    fn pop(&mut self, op1: Reg16) {
+        self.encode_r(0x8f, 0x0, op1);
+    }
+}
diff --git a/src/insn/push.rs b/src/insn/push.rs
new file mode 100644
index 0000000..8554dcb
--- /dev/null
+++ b/src/insn/push.rs
@@ -0,0 +1,14 @@
+use super::Push;
+use crate::{Asm, Reg16, Reg64};
+
+impl Push<Reg64> for Asm {
+    fn push(&mut self, op1: Reg64) {
+        self.encode_r(0xff, 0x6, op1);
+    }
+}
+
+impl Push<Reg16> for Asm {
+    fn push(&mut self, op1: Reg16) {
+        self.encode_r(0xff, 0x6, op1);
+    }
+}
-- 
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