Short: HelloVOID demo
Author: mscarano@libero.it (Massimiliano Scarano)
Uploader: mscarano libero it (Massimiliano Scarano)
Type: demo/intro
Version: 1.0 20180225
Architecture: m68k-amigaos
Distribution: Aminet
(c) 2018 Massimiliano Scarano mscarano@libero.it
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Coded by Massimiliano "AlienTech" Scarano for the Amiga demo group VOID.
This demo shows how to make direct programming of the Commodore Amiga hardware using C language.
It is designed like in the early 90s.
It consists of the following "old-school" effects:
- sine scroller (blitter)
- 2D stars (hardware sprites)
- MOD music (paula)
The Player Playroutine P6112 assembled with PhxAss V4.40.
Compiled with SAS/C 6.58 and Includes release 40.13 (AmigaOS 3.1).
Source code supplied for educational purpose only.
Both .exe and .adf supplied.
It should work on any PAL Amiga, with a Motorola 68000 cpu and OCS chipset,
and whatever OS (Kickstart + Workbench) version.
Tested OK:
- Amiga Forever 2013 (WinUAE)
- Minimig V1.1 OCS, 68SEC000 / 7.09 MHz (Normal), 512 KB Chip, 0 KB Fast, Kickstart 1.3
- Minimig V1.1 OCS, 68SEC000 / 7.09 MHz (Normal), 512 KB Chip, 512 KB Fast, Kickstart 1.3
- Minimig V1.1 ECS, 68SEC000 / 49.63 MHz (Turbo), 1 MB Chip, 512 KB Fast, Kickstart 1.3
Version history:
- V1.0 20180225, first public release
Notes:
- My Minimig configuration:
Bootloader BYQ100413
FPGA core FSB150520
ARM Firmware AYQ100818
- The demo should run at constant full frame rate (50 Hz),
the screen is updated every frame.
- Commodore Includes 40.13 were distributed with SAS/C 6.51.
- RAW gfx format consists of all rows of the 1st bitplane, followed by all rows of the 2nd bitplane and so on.
- Build with:
> phxass p61.s
> sc link HelloVOID_V1_?_YYYYMMDD.c p61.o
- Run the following on a very fast Amiga to enjoy a 1 pixel sine scroller:
> HelloVOID.exe turbo
Many thanks to Esau for his music.