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Mode 3 Bitmap Demo

demo Open · freely redistributable

A self-authored, public-domain Game Boy Advance homebrew demo. Its ARM7TDMI entry code switches the LCD to bitmap Mode 3, then writes an incrementing 16-bit BGR555 value into every one of the 240×160 framebuffer pixels, producing a smooth colour gradient before halting in a tight loop. It uses no BIOS calls, so it runs cleanly on the open BIOS replacement and is an ideal target for the debugger — set a breakpoint on the pixel loop, single-step the ARM core, and watch VRAM fill.

Download ↓ Original source ↗

Format: GBA ROM (.gba), ARM code + header magic, 256 bytes · By: emulators.org · Licence: Public domain

Runs on

Game Boy Advance

Game Boy Advance SP

Preview

Full file (256 bytes) — offset, bytes, ASCII.

00000000  04 04 A0 E3 04 1C A0 E3 03 10 81 E3 B0 10 C0 E1  ................
00000010  06 04 A0 E3 96 2C A0 E3 B2 30 C0 E0 01 30 83 E2  .....,...0...0..
00000020  01 20 52 E2 FB FF FF 1A FE FF FF EA 00 00 00 00  . R.............
00000030  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000040  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000050  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000060  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000070  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000080  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000090  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000000a0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000000b0  00 00 96 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000000c0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000000d0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000000e0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000000f0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................