From 9fbd6e95e7077548260c64f4671741fd3c6aaefb Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Wed, 5 Feb 2025 14:31:43 +0100
Subject: [PATCH 1/3] makefile -> Makefile

---
 makefile => Makefile | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename makefile => Makefile (100%)

diff --git a/makefile b/Makefile
similarity index 100%
rename from makefile
rename to Makefile

From bcb7407ca923b41c3ef503f673caa11815ca707d Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Wed, 5 Feb 2025 14:45:00 +0100
Subject: [PATCH 2/3] Converting to c99, removing gnu specific features

---
 74C922.h   | 1 +
 GDM1602K.c | 8 ++++----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/74C922.h b/74C922.h
index a7ac22c..cda3d20 100644
--- a/74C922.h
+++ b/74C922.h
@@ -1,6 +1,7 @@
 #ifndef H74C922_H
 #define H74C922_H
 #include <stdint.h>
+#include <stdbool.h>
 
 // Pin Definitions
 #define ENCODER_A_PIN  PD6
diff --git a/GDM1602K.c b/GDM1602K.c
index b642f70..8c442ff 100644
--- a/GDM1602K.c
+++ b/GDM1602K.c
@@ -58,10 +58,10 @@ void lcd_init() {
     lcd_4bit_init();
 
     // lcd_send(1, 0b01111000);
-    lcd_send(0, 0x01);       // Clear screen
-    lcd_send(0, 0x02);       // Return home
-    lcd_send(0, 0b00001100); // Display on, no cursor
-    lcd_send(0, 0b00101000);
+    lcd_send(0, 0x01); // Clear screen
+    lcd_send(0, 0x02); // Return home
+    lcd_send(0, 0xC);  // Display on, no cursor
+    lcd_send(0, 0x28);
 }
 
 void lcd_clear() { lcd_send(0, 0x01); }

From 86973763d692d0fa9de1f0bc25bbb6d12d164e74 Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Wed, 5 Feb 2025 14:47:46 +0100
Subject: [PATCH 3/3] Better flags

---
 Makefile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 0503c93..e45edf9 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,11 @@ MCU = atmega1284p
 QEMU_MACHINE_NAME = mega
 
 # Compiler flags
-CFLAGS = -std=c2x -Wall -Wno-array-bounds -mmcu=$(MCU) -DF_CPU=16000000UL -O3
+CFLAGS = -std=c99 -Wall -Wextra -Wpedantic -Wno-array-bounds -mmcu=$(MCU) \
+		 -DF_CPU=16000000UL -O2 -fno-common -ffunction-sections -fdata-sections
+
+# For debug
+CFLAGS += -g3 -DDEBUG
 
 # Source files
 SRCS = $(wildcard *.c)
@@ -34,6 +38,7 @@ $(TARGET).elf: $(OBJS)
 # Convert ELF to HEX
 $(TARGET).hex: $(TARGET).elf
 	avr-objcopy -O ihex -R .eeprom $(TARGET).elf $(TARGET).hex
+	avr-size $<
 
 # Flash the program
 flash: $(TARGET).hex