From d8dbfe55f4741a9cf70c1b95762461e08eb08f22 Mon Sep 17 00:00:00 2001
From: James Barnett <noreply@jamesbarnett.xyz>
Date: Fri, 15 Jun 2018 22:10:47 +0100
Subject: Add all 8-Bit Load opcodes

---
 src/main/kotlin/cpu/Registers.kt | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/main/kotlin/cpu/Registers.kt')

diff --git a/src/main/kotlin/cpu/Registers.kt b/src/main/kotlin/cpu/Registers.kt
index 7aa144f..6d1e626 100644
--- a/src/main/kotlin/cpu/Registers.kt
+++ b/src/main/kotlin/cpu/Registers.kt
@@ -99,5 +99,21 @@ class Registers {
       L = bm.getLsb(value)
     }
 
+  fun getAndDecrementHL(): Int {
+    val currentHL = HL
+    if(HL > 0x0000) { // TODO - is this correct? Or should it underflow to 0xFFFF?. Also for increment op.
+      HL--
+    }
+    return currentHL
+  }
+
+  fun getAndIncrementHL(): Int {
+    val currentHL = HL
+    if(HL < 0xFFFF) {
+      HL++
+    }
+    return currentHL
+  }
+
 
 }
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