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Use high precision cos for RGB->DHGR Conversion

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Add some raster op routines for FORTH turtle graphcis
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David Schmenk committed 2025-12-10 15:23:30 -08:00
1 parent f987458a15
commit d35774eac4
4 files changed
+12 -42
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src/scripts/hgrlib.4th
+4 -1
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@@ -24,6 +24,9 @@ LOOKUP HGRDRAWBUF PLASMA HGRDRAWBUF
LOOKUP HGRCOLOR PLASMA HGRCOLOR
LOOKUP SETLINESPANS PLASMA SETLINESPANS
LOOKUP LINESPANS PLASMA HGRLINE
LOOKUP HGRHLIN LOOKUP HGRVLIN SETLINESPANS
: SETLINE [ LOOKUP HGRHLIN ] LITERAL [ LOOKUP HGRVLIN ] LITERAL SETLINESPANS ;
: SETXORLINE [ LOOKUP HGRXORHLIN ] LITERAL [ LOOKUP HGRXORVLIN ] LITERAL SETLINESPANS ;
: SETORLINE [ LOOKUP HGRORHLIN ] LITERAL [ LOOKUP HGRORVLIN ] LITERAL SETLINESPANS ;
SETLINE
' TEXT 0= ?ENDSRC
: TEXT -1 HGRMODE DROP TEXT ;