RP2040 Assembly Language Programming: ARM Cortex-M0+ on the Raspberry Pi Pico

Appendix A: ASCII Character Set

Here is the ASCII Character Set. The characters from 0 to 127 are standard. The characters from 128 to 255 are not standard and depend on geographic region and computer manufacturer among other things. The values of these characters are specified by a code page and the ones presented here are taken from code page 437, which is the character set of the original IBM PC.

Dec	Hex	Char	Description
0	00	NUL	Null
1	01	SOH	Start of header
2	02	STX	Start of text
3	03	ETX	End of text
4	04	EOT	End of transmission
5	05	ENQ	Enquiry
6	06	ACK	Acknowledge
7	07	BEL	Bell
8	08	BS	Backspace
9	09	HT	Horizontal tab
10	0A	LF	Line feed
11	0B	VT	Vertical tab
12	0C	FF	Form feed
13	0D	CR	Carriage return
14	0E	SO	Shift out
15	0F	SI	Shift in
16	10	DLE	Data link escape
17	11	DC1	Device control 1
18	12	DC2	Device ...