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Drawing lines: TWFR

[BBC Micro disc version, Flight]

Name: TWFR [Show more] Type: Variable Category: Drawing lines Summary: Ready-made character rows for the right end of a horizontal line in mode 4
Context: See this variable in context in the source code Variations: See code variations for this variable in the different versions References: This variable is used as follows: * HLOIN uses TWFR

Ready-made bytes for plotting horizontal line end caps in mode 4 (the top part of the split screen). This table provides a byte with pixels at the right end, which is used for the left end of the line. See the HLOIN routine for details.
.TWFR EQUB %11111111 EQUB %01111111 EQUB %00111111 EQUB %00011111 EQUB %00001111 EQUB %00000111 EQUB %00000011 EQUB %00000001