02_global

Global Variables

• グローバル変数の利用例です

How to build

Pre-request

• GNU make and GNU Compiler Collection
  • macOS: install XCODE
  • Linux: sudo apt install build-essential
• SDCC version 4.1.0
  • macOS(x64): https://sourceforge.net/projects/sdcc/files/sdcc-macos-amd64/4.1.0/
  • Linux(x64): https://sourceforge.net/projects/sdcc/files/sdcc-linux-amd64/4.1.0/

Build

git clone https://github.com/suzukiplan/vgszero
cd vgszero/example/02_global
make

ROM structure

8KB x 3 banks = 24KB ROM

• Bank 0: program
• Bank 1: program
• Bank 2: font.chr