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Added a 160x192x2 TGI (graphics) driver to the VIC-20 library.

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The driver requires a special linker configuration: "vic20-tgi.cfg".
The VIC-20 computer needs at least 8K of expansion RAM!

"tgidemo.c" needed to be adjusted because the VIC-20's vertical (y) range is greater than its horizontal (x) range -- the opposite of most other platforms.  Also, the circle demo would jam on the VIC-20.
This commit is contained in:
Greg King
2020-07-08 05:55:30 -04:00
parent d1833cc441
commit 410e4502ee
11 changed files with 1253 additions and 23 deletions
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13
libsrc/vic20/tgi_stddrv.s Normal file
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@@ -0,0 +1,13 @@
;
; Name of the standard TGI driver
;
; 2018-03-11, Sven Michael Klose
;
; const char tgi_stddrv[];
;
.export _tgi_stddrv
.rodata
_tgi_stddrv: .asciiz "vic20-hi.tgi"