From 2711beb238ea5c178a7e346818937740041e0db4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Magalh=C3=A3es?= <joamag@gmail.com>
Date: Sat, 2 Jul 2022 23:38:37 +0100
Subject: [PATCH] feat: one more instruction
---
src/inst.rs | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/inst.rs b/src/inst.rs
index 11592281..e5229b81 100644
--- a/src/inst.rs
+++ b/src/inst.rs
@@ -228,7 +228,7 @@ pub const INSTRUCTIONS: [(fn(&mut Cpu), u8, &'static str); 256] = [
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
- (noimpl, 4, "! UNIMP !"),
+ (push_de, 16, "PUSH DE"),
(sub_a_u8, 8, "SUB A, u8"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
@@ -936,6 +936,10 @@ fn rst_08h(cpu: &mut Cpu) {
rst(cpu, 0x0008);
}
+fn push_de(cpu: &mut Cpu) {
+ cpu.push_word(cpu.de());
+}
+
fn sub_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a = sub_set_flags(cpu, cpu.a, byte);
--
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