(c) 2020   Massimiliano Scarano   mscarano@libero.it
  Support my projects for Amiga with a PayPal donation thanks.
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  The intro was coded by Massimiliano "AlienTech" Scarano for the Amiga demo group VOID
  and presented at Revision 2020, where it was ranked 10th at the "Amiga Demo" competition.
  Here is the official recording:
  https://www.youtube.com/watch?v=jLMFnTm7zz4



  This intro shows how to make direct programming of the Commodore Amiga hardware using a mix of C and Assembly.
  It is designed like in the late 80s / early 90s.
  It consists of the following "old-school" effects:
  - bounce scroller (blitter)
  - color bars (copper)
  - 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.



  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, cycle exact emulation)
  - Amiga Forever 7 (WinUAE, cycle exact emulation)



  Version history:
  - V1.0 20200202, first public release



  Notes:
  - The intro 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 Yip_cover_V1_?_YYYYMMDD.c p61.o

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[generic]                 1256    6370  19.7% -lh5- fbd3 Aug  4  1980 Yip_cover_V1_0/DemoData/1-Logo352x272x8.ilbm
[generic]                 1553    6232  24.9% -lh5- e5ad Aug  4  1980 Yip_cover_V1_0/DemoData/2-Logo352x272x8.ilbm
[generic]                 1696    6290  27.0% -lh5- d791 Aug 17  1980 Yip_cover_V1_0/DemoData/3-Logo352x272x8.ilbm
[generic]                 1938    6714  28.9% -lh5- c663 Aug 18  1980 Yip_cover_V1_0/DemoData/4-Logo352x272x8.ilbm
[generic]                 1944    6720  28.9% -lh5- 302b Dec 29  1980 Yip_cover_V1_0/DemoData/5-Logo352x272x8.ilbm
[generic]                 1938    6716  28.9% -lh5- 9a76 Dec 31  1980 Yip_cover_V1_0/DemoData/6-Logo352x272x8.ilbm
[generic]                 1977    6428  30.8% -lh5- 42f3 Dec 31  1980 Yip_cover_V1_0/DemoData/7-Logo352x272x8.ilbm
[generic]                 2214    6934  31.9% -lh5- d6ec Jan  5  1980 Yip_cover_V1_0/DemoData/8-Logo352x272x8.ilbm
[generic]                 2350    2350 100.0% -lh0- 1cbf Apr  9  1980 Yip_cover_V1_0/DemoData/BigFont.png
[generic]                  867    1568  55.3% -lh5- f0dc Apr 15  1980 Yip_cover_V1_0/DemoData/BigFont944x16.iff
[generic]                 2250    2250 100.0% -lh0- 0a0a Apr 11  1980 Yip_cover_V1_0/DemoData/BigFont944x16.png
[generic]                  701    1888  37.1% -lh5- 1fa1 Apr 15  1980 Yip_cover_V1_0/DemoData/Font944x16x2.raw
[generic]                 2450   35904   6.8% -lh5- e027 Feb  2  1980 Yip_cover_V1_0/DemoData/Logo352x272x8.raw
[generic]                66399   78530  84.6% -lh5- 7872 Nov 23  1980 Yip_cover_V1_0/DemoData/P61.Netherworld
[generic]                  332     631  52.6% -lh5- 0bfa Feb  4  1980 Yip_cover_V1_0/Source/p61.h
[generic]                 2121    3976  53.3% -lh5- bdca Nov 24  1980 Yip_cover_V1_0/Source/p61.o
[generic]                 2890    6096  47.4% -lh5- 51ce Nov 23  1980 Yip_cover_V1_0/Source/p61.s
[generic]                24207   88376  27.4% -lh5- 8a57 Feb  3  1980 Yip_cover_V1_0/Source/P6112-Play.i
[generic]                   50      50 100.0% -lh0- 3c3f Nov 23  1980 Yip_cover_V1_0/Source/SCOPTIONS
[generic]                 9229   30484  30.3% -lh5- c941 Feb  2  1980 Yip_cover_V1_0/Source/Yip_cover_V1_0_20200202.c
[generic]                12287   20504  59.9% -lh5- e43e Feb  2  1980 Yip_cover_V1_0/Yip_cover.exe
[generic]                  980    1838  53.3% -lh5- fb9a Aug  2  1980 Yip_cover_V1_0/Yip_cover.readme
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total        22 files  141629  326849  43.3%            Aug  2 23:54