Complete Character Set - Sinclair ZX81 User Manual

Appendix A - The character set
This is the complete ZX80 character set, with codes in decimal & hex. If one imagines the codes as being
Z80 machine code instructions, then the right hand columns give the corresponding assembly language
mnemonics. As you are probably aware if you understand these things, certain Z80 instructions are
compounds starting with CBh or EDh; the two right hand columns give these.
Code Character
0 space
1
2
3
4
5
6
7
8
9
10
11 "
12 £
13 $
14 :
15 ?
16 (
17 )
18 >
19 <
20 =
21 +
22 -
23 *
24 /
25 ;
26 ,
27 .
28 0
29 1
30 2
31 3
32 4
33 5
34 6
35 7
36 8
37 9
38 A
39 B
40 C
Hex Z80 assembler
00 nop
01 ld bc,NN
02 ld (bc),a
03 inc bc
04 inc b
05 dec b
06 ld b,N
07 rlca
08 ex a,af'
09 add hl,bc
0A ld a,(bc)
0B dec bc
0C inc c
0D dec c
0E ld c,N
0F rcca
10 djnz DIS
11 ld de,NN
12 ld (de),a
13 inc de
14 inc d
15 dec d
16 ld d,N
17 rla
18 jr DIS
19 add hl,de
1A la a,(de)
1B dec de
1C inc e
1D dec e
1E ld e,N
1F rra
20 jr nz,DIS
21 ld hl,N
22 ld (NN),hl
23 inc hl
24 inc h
25 dec h
26 ld h,N
27 daa
28 jr z,DIS
- after CBh - after EDh
rlc b
rlc c
rlc d
rlc e
rlc h
rlc l
rlc (hl)
rlc a
rrc b
rrc c
rrc d
rrc e
rrc h
rrc l
rrc (hl)
rrc a
rl b
rl c
rl d
rl e
rl h
rl l
rl (hl)
rl a
rr b
rr c
rr d
rr e
rr h
rr l
rr (hl)
rr a
sla b
sla c
sla d
sla e
sla h
sla l
sla (hl)
la a
sra b