Radio Shack TRS-80

Computer Graphics
Operation Manual
---------- TRS·BO ® ----------
Appendix FI Pixel Grid Reference
The following hexadecimal numbers include commonly used
tiling designs.
Important Note: You cannot use more than two empty rows of
tiles when tiling or you'll get an Illegal Function Call
error.
Example (four rows of empty tiles):
CHR$(&HFF)+CHR$(&HFF)+CHR$(&H~~)+CHR$(&H~~)+CHR$(&H~~)+CHR$(&H~~)
gives you an Illegal Function Call error.
1. "X"
CHR$(&H4l)+CHR$(&H22)+CHR$(&H14)+CHR$(&H~8)+CHR$(&H14)
+CHR$(&H22)+CHR$(&H4l)+CHR$(&H~~)
~
1
~
~ ~ ~
~
1
~ ~
1
~
~ ~
1
~
~ ~
~
1
~
1
~ ~
~ ~ ~ ~
1
~
~ ~
~
~ ~
1
~
1
~
~
~
~
1
~
~ ~
1
~
~
1
~ ~ ~
~ ~
1
~
~ ~ ~
~ ~
~ ~
Hex Decimal
41 65
22 34
14
2~
~8
8
14
2~
22
34
41 65
~~
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