From dc9bc73529d2b7018d94a8fd8f98ff22b82ee2c1 Mon Sep 17 00:00:00 2001
From: "Erik C. Thauvin" <erik@thauvin.net>
Date: Mon, 24 Aug 2020 00:10:18 -0700
Subject: [PATCH] Added mnemonic and pause/pause to resume.

---
 src/main/kotlin/com/beust/chip8/Main.kt | 10 +++++++---
 src/main/resources/main.fxml            |  2 +-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/main/kotlin/com/beust/chip8/Main.kt b/src/main/kotlin/com/beust/chip8/Main.kt
index 517a79b..7283841 100644
--- a/src/main/kotlin/com/beust/chip8/Main.kt
+++ b/src/main/kotlin/com/beust/chip8/Main.kt
@@ -45,7 +45,7 @@ class MyFxApp : Application() {
             // Computer is paused
 
             // Update the pause button label
-            pauseButton?.text = if (newVal)  "Resume" else "Pause"
+            pauseButton?.text = if (newVal)  "_Resume" else "_Pause"
 
             // Display the disassembly
             updateDisassembly(disassembly!!, computer.disassemble())
@@ -187,10 +187,14 @@ class MyFxApp : Application() {
                     exitProcess(0)
                 }
                 KeyCode.P -> {
-                    computer.pause()
+                    if (computer.paused) {
+                        computer.start()
+                    } else {
+                        computer.pause()
+                    }
                 }
                 else -> {
-                    if (computer.paused) computer.start()
+                    if (computer.paused && event.code != KeyCode.ALT) computer.start()
                     else {
                         try {
                             val key = Integer.parseInt(event.code.char, 16)
diff --git a/src/main/resources/main.fxml b/src/main/resources/main.fxml
index f4c3db9..99e45bd 100644
--- a/src/main/resources/main.fxml
+++ b/src/main/resources/main.fxml
@@ -26,7 +26,7 @@
                             </padding>
                             <Button text="Open rom..." alignment="CENTER" id="loadRom">
                             </Button>
-                            <Button text="Pause" id="pause">
+                            <Button text="_Pause" id="pause">
                             </Button>
                             <HBox maxWidth="Infinity" spacing="10">
                                 <Label text="Clock speed"/>