ファミコンアセンブリ入門

Here I gave a small introduction to programming in assembly for the NES emulator fceux.

Transcript

1. ファミコンアセンブリ入門
   Daniel Sangorrin ( ダニエル )
   @daromart
   @daromart
   東海道らぐ横浜の集い 2018 桜舞う巻
   2018/03/24
   

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3. Architecture Reference
   ●
   http://nesdev.com/
   ●
   http://hp.vector.co.jp/authors/VA042397/inde
   x.html
   

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4. 6502 アセンブリ
   https://skilldrick.github.io/easy6502/
   LDX #0 ; X will be the pixel index
   LDA #3 ; A will contain the color
   FIRST:
   STA $0200,X
   INX
   CPX #255
   BCC FIRST
   STA $02FF
   LDX #0
   LDA #4
   SECOND:
   STA $0300,X
   INX
   CPX #255
   BCC SECOND
   STA $03FF
   LDX #0
   LDA #5
   THIRD:
   STA $0400,X
   INX
   CPX #255
   BCC THIRD
   STA $04FF
   LDX #0
   LDA #6
   FOURTH:
   STA $0500,X
   INX
   CPX #255
   BCC FOURTH
   STA $05FF
   

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5. Assembly Reference
   ●
   https://nesdoug.com/
   ●
   https://en.wikibooks.org/wiki/6502_Assembl
   y
   ●
   https://timcheeseman.com/nesdev
   

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6. WINE + FCEUX
   ●
   Fceux available in Linux
   ●
   But no debug functionality
   ●
   WINE to run the Win32 version
   $ sudo dpkg --add-architecture i386
   $ wget -nc https://dl.winehq.org/wine-builds/Release.key
   $ sudo apt-key add Release.key
   $ sudo apt-add-repository https://dl.winehq.org/wine-
   builds/ubuntu/
   $ sudo apt-get update
   $ sudo apt-get install --install-recommends winehq-stable
   [Alt] sudo apt-get install --install-recommends winehq-devel
   $ wine fceux xxx.nes
   

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7. cc65
   ●
   Install the cc65 compiler
   $ git clone https://github.com/cc65/cc65.git
   $ cd cc65
   $ make
   $ sudo make install PREFIX=/usr
   $ which cc65
   /usr/bin/cc65 $ which ca65
   /usr/bin/ca65

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8. Hello World
   $ git clone https://github.com/cirla/nesdev.git
   $ cd nesdev
   $ git checkout hello_world
   $ ls
   reset.s: initialization of the NES
   hello_world.c: contains main called from reset.s
   hello_world.cfg: linker script (describes the CPU memory map used)
   sprites.chr: file with sprites (Bitmap ROM)
   $ make
   -> hello_world.nes
   $ wine fceux.exe hello_world.nes
   -> shows a hello world
   

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