Radio Shack TRS-80 PC-3 Owner's Manual page 212

APPENDIX B ASCII CHARACTER CODE CHART
The following chart shows the conversion values for use with CHR$ and ASC. The column shows the first hex character or the first
four binary bits, the row shows the second hex character or the second binary bits. The upper-left corner of each box contains
the decimal number for the character. The lower-right corner shows the character. If no character is shown, then it is an illegal
character on the PC-3 Pocket Computer. For example, the character 'A' is a decimal 65 or a hex 41 or a binary 01000001.
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