Registers
| |
8 |
16 |
| 000 |
r0 |
X1 |
| 001 |
r1 |
X2 |
| 010 |
r2 |
DP |
| 011 |
r3 |
PSW |
| 100 |
r4 |
er0 |
| 101 |
r5 |
er1 |
| 110 |
r6 |
er2 |
| 111 |
r7 |
er3 |
ERn: ER0, ER1, ER2, ER3
PRn: X1, X2, DP, USP
Rn R0, R1, R2, R3, R4, R5, R6, R7
Other Registers: SSP, PSWH, PSWL, LRB
Special Function Registers (SFR)
| Address |
Name |
Symbol |
R/W |
8/16-bit Operation |
Reset |
| 0x00 |
System stack printer |
SSP (ASSP) |
R/W |
8/16 |
0xFF |
| 0x01 |
0xFF |
| 0x02 |
Local register base |
LRB (ALRB) |
R/W |
8/16 |
undefined |
| 0x03 |
| 0x04 |
Program status word |
PSWL PSW |
R/W |
8/16 |
0xC8 |
| 0x05 |
PSWH (APSW) |
0x0C |
| 0x06 |
Accumulator |
ACC |
R/W |
8/16 |
0x00 |
| 0x07 |
0x00 |
| 0x10 |
Standby control register |
SBYCON |
R/W |
8 |
0xF8 |
| Program Status Word (PSW) (0x04 PSWL, 0x05 PSWH |
| R/W-0 |
R/W-0 |
R/W-0 |
R/W-0 |
U-1 |
U-1 |
R/W-0 |
R/W-0 |
U-1 |
U-1 |
R/W-0 |
R/W=0 |
U-1 |
R/W-0 |
R/W-0 |
R/W-0 |
| CY |
ZF |
HC |
DD |
– |
– |
UF (MIP) |
MIP |
– |
– |
UF (MIP) |
UF (MIP) |
– |
SCB2 |
SCB1 |
SCB0 |
| 15 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
CY = Carry Flag
ZF = Zero Flag
HC = Half Carry Flag
DD = Data Descriptor
MIP = Master Interrupt Priority Flag
UF = User Flag
SCB = System Control Base
Op Codes
| |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
| 0 |
NOP |
RT |
RTI |
J N16 |
– |
– |
– |
– |
| 1 |
VCAL 0 |
VCAL 1 |
VCAL 2 |
VCAL 3 |
VCAL 4 |
VCAL 5 |
VCAL 6 |
VCAL 7 |
| 2 |
(r0) |
(r1) |
(r2) |
(r3) |
(r4) |
(r5) |
(r6) |
(r7) |
| 3 |
JRNZ DP, addr |
SCAL addr |
CAL N16 |
ROL A |
L A,er0 |
L A,er1 |
L A,er2 |
L A,er3 |
| 4 |
L A,X1 |
L A,X2 |
L A,DP |
ROR A |
(er0) |
(er1) |
(er2) |
(er3) |
| 5 |
MOV X1, A |
MOV X2, A |
MOV DP, A |
SLL A |
PUSHS LRB |
PUSHS A |
PUSHS PSW |
ST A, #N |
| 6 |
MOV X1, #N16 |
MOV X2, #N16 |
MOV DP, #N16 |
SRL A |
POPS LRB |
POPS A |
POPS PSW |
L A, #N |
| 7 |
INC X1 |
INC X2 |
INC DP |
SRA A |
– |
– |
– |
LB A, #N |
| 8 |
DEC X1 |
DEC X2 |
DEC DP |
SWAP |
XNBL A, off N8 |
SC |
ADD A, #N |
ADDB A, off #N |
| 9 |
(X1) |
(X2) |
(DP) |
DAA |
DAS |
RC |
ADC A, #N |
ADCB A, off #N |
| A |
(SSP) |
(USP) |
(PSWH) |
(PSWL) |
(LRB) |
– |
SUB A,#N |
SUBB A, off #N |
| B |
(N16[X1])16 |
(N16[X2])16 |
([DP])16 |
(N8[USP])16 |
(off N8)16 |
(N8)16 |
SBC A, #N |
SBCB A, #N |
| C |
(N16[X1])8 |
(N16[X2])8 |
([DP])8 |
(N8[USP])8 |
(off N8)8 |
(N8)8 |
CMP A, #N |
CMPB A, off #N |
| D |
ST A, N16[X1] |
ST A, N16[X2] |
ST A, [DP] |
ST A, N8[USP] |
ST A, off N8 |
ST A, N8 |
AND A, #N |
AND A off #N |
| E |
L A,N16[X1] |
L A,N16[X2] |
L A,[DP] |
L A,N8[USP] |
L A,off N8 |
L A,N8 |
OR A, #N |
ORB A, off #N |
| F |
LB A,N16[X1] |
LB A,N16[X2] |
LB A,[DP] |
LB A,N8[USP] |
LB A,off N8 |
LB A,N8 |
XOR A, #N |
XORB A, off #N |
| |
8 |
9 |
A |
B |
C |
D |
E |
F |
| 0 |
ADD A, er0 |
ADD A, er1 |
ADD A, er2 |
ADD A, er3 |
ADD A, X1 |
ADD A, X2 |
ADD A, DP |
ADD A, USP |
| 1 |
ADC A, er0 |
ADC A, er1 |
ADC A, er2 |
ADC A, er3 |
ADC A, X1 |
ADC A, X2 |
ADC A, DP |
ADC A, USP |
| 2 |
SUB A, er0 |
SUB A, er1 |
SUB A, er2 |
SUB A, er3 |
SUB A, X1 |
SUB A, X2 |
SUB A, DP |
SUB A, USP |
| 3 |
SBC A, er0 |
SBC A, er1 |
SBC A, er2 |
SBC A, er3 |
SBC A, X1 |
SBC A, X2 |
SBC A, DP |
SBC A, USP |
| 4 |
CMP A, er0 |
CMP A, er1 |
CMP A, er2 |
CMP A, er3 |
CMP A, X1 |
CMP A, X2 |
CMP A, DP |
CMP A, USP |
| 5 |
AND A, er0 |
AND A, er1 |
AND A, er2 |
AND A, er3 |
AND A, X1 |
AND A, X2 |
AND A, DP |
AND A, USP |
| 6 |
OR / XOR A, er0 |
OR / XOR A, er1 |
OR / XOR A, er2 |
OR / XOR A, er3 |
OR / XOR A, X1 |
OR / XOR A, X2 |
OR / XOR A, DP |
OR / XOR A, USP |
| 7 |
LB A,r0 |
LB A,r1 |
LB A,r2 |
LB A,r3 |
LB A,r4 |
LB A,r5 |
LB A,r6 |
LB A,r7 |
| 8 |
ST A, er0 |
ST A, er1 |
ST A, er2 |
ST A, er3 |
ST A, X1 |
ST A, X2 |
ST A, DP |
ST A, USP |
| 9 |
MOVB r0, #N |
MOVB r1, #N |
MOVB r2, #N |
MOVB r3, #N |
MOVB r4, #N |
MOVB r5, #N |
MOVB r6, #N |
MOVB r7, #N |
| A |
INCB r0 |
INCB r1 |
INCB r2 |
INCB r3 |
INC A |
– |
– |
– |
| B |
DECB r0 |
DECB r1 |
DECB r2 |
DECB r3 |
– |
– |
– |
– |
| C |
JGT addr |
JEQ addr |
JLT addr |
JNS addr |
JPS addr |
JGE addr |
JNE addr |
JLE addr |
| D |
JBR off N8.0,addr |
JBR off N8.1,addr |
JBR off N8.2,addr |
JBR off N8.3,addr |
JBR off N8.4,addr |
JBR off N8.5,addr |
JBR off N8.6,addr |
JBR off N8.7,addr |
| E |
JBS off N8.0,addr |
JBS off N8.1,addr |
JBS off N8.2,addr |
JBS off N8.3,addr |
JBS off N8.4,addr |
JBS off N8.5,addr |
JBS off N8.6,addr |
JBS off N8.7,addr |
| F |
EXTND |
CLR A |
CLRB A |
– |
CPL C |
INC LRB |
DEC LRB |
BRK |
Op Codes Escapes
| |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
| 0 |
– |
– |
– |
– |
– |
– |
– |
– |
| 1 |
XCHG * |
SBR * |
RBR * |
TRB * |
– |
– |
INC * / INCB * |
DEC * / DECB * |
| 2 |
MBR *, C |
MBR C, * |
J [*] |
CAL * |
– |
– |
– |
– |
| 3 |
– |
– |
– |
– |
– |
– |
DIVB |
DIV |
| 4 |
– |
– |
– |
– |
– |
– |
– |
– |
| 5 |
– |
– |
– |
– |
– |
– |
– |
– |
| 6 |
– |
– |
– |
– |
– |
– |
– |
– |
| 7 |
– |
– |
– |
– |
– |
– |
– |
– |
| 8 |
– |
– |
– |
– |
– |
– |
– |
– |
| 9 |
– |
– |
– |
– |
– |
– |
– |
– |
| A |
SUB *, #N16 |
SUB *, A |
SUB A, * |
SUB *, off N8 |
– |
– |
– |
– |
| B |
SBC *, #N16 |
SBC *, A |
SBC A, * |
SBC *, off N8 |
– |
– |
– |
ROL * |
| C |
CMPB *, #N8 |
– |
– |
– |
– |
– |
– |
ROR * |
| D |
– |
– |
– |
– |
– |
– |
– |
SLL * |
| E |
OR *, #N16 |
OR *, A |
OR A, * |
OR *, off N8 |
– |
– |
– |
SRL * |
| F |
XOR *, #N16 |
XOR *, A |
XOR A, * |
XOR *, off N8 |
– |
– |
– |
SRA * |
| |
8 |
9 |
A |
B |
C |
D |
E |
F |
| 0 |
RB *.0 |
RB *.1 |
RB *.2 |
RB *.3 |
RB *.4 |
RB *.5 |
RB *.6 |
RB *.7 |
| 1 |
SB *.0 |
SB *.1 |
SB *.2 |
SB *.3 |
SB *.4 |
SB *.5 |
SB *.6 |
SB *.7 |
| 2 |
MB C, *.0 |
MB C, *.1 |
MB C, *.2 |
MB C, *.3 |
MB C, *.4 |
MB C, *.5 |
MB C, *.6 |
MB C, *.7 |
| 3 |
MB *.0, C |
MB *.1, C |
MB *.2, C |
MB *.3, C |
MB *.4, C |
MB *.5, C |
MB *.6, C |
MB *.7, C |
| 4 |
MOVB r0, * |
MOVB r1, * |
MOVB r2, * |
MOVB r3, * |
MOVB r4, * |
MOVB r5, * |
MOVB r6, * |
MOVB r7, * |
| 5 |
– |
– |
– |
– |
– |
– |
– |
– |
| 6 |
– |
– |
– |
– |
– |
– |
– |
– |
| 7 |
MOV X1, * |
MOV X2, * |
MOV DP, * |
MOV USP, * |
MOVB off N8, * |
MOV PSW, * |
MOV SSP, * |
MOV LRB, * |
| 8 |
MOVB PSWL, * |
MOVB PSWH, * |
MOV *, A / MOVB *, A |
– |
– |
– |
– |
– |
| 9 |
MOV *, #N16 / MOVB *, #N8 |
MOVB A, * / MOV A, * |
– |
– |
LC A, N16 |
LCB A, N16 |
CMPC A, N16 |
CMPCB A, N16 |
| A |
LC A,[N16(*)] |
LC A,N16(*) |
LCB A,[N16(*)] |
LCB A, (N16*) |
CMPC A, [*] |
CMPC A, * |
CMPCB A,[*] |
CMPCB A, * |
| B |
– |
– |
– |
– |
– |
– |
– |
– |
| C |
– |
– |
– |
– |
– |
– |
– |
– |
| D |
– |
– |
– |
– |
– |
– |
– |
– |
| E |
– |
– |
– |
– |
– |
– |
– |
– |
| F |
– |
– |
– |
– |
– |
– |
– |
– |
movb off xx, reg8 00100rrr01111100xxxxxxxx
267CXX MOVB off XX, r6
mov off xx, reg16 01000rrr01111100xxxxxxxx
447CXX MOV off XX, er0
457CXX MOV off XX, er1
mov ret16, ret16 01000rrr01111rrr
4478 MOV X1, er0
4679 MOV X2, er2
4778 MOV X1, er3
447D MOV PSW, er0
mov off XX, reg16 01000rrr01111100xxxxxxxx
447CXX : MOV off XX, er0 ; should be er0 to er0 maybe same register is the reason they gave it different function?
477CXX : MOV off XX, er3 ; should be er3 to er0 ?????
467CXX : MOV off XX, er2
mov reg16, imm 01000rrr10011000xxxxxxxxxxxxxxxx
4598XXXX : MOV er1, #XXXX
mov X1, A 01010000
50 : MOV X1, A
mov LBR, imm 01010111xxxxxxxxxxxxxxxx
57XXXX : MOV LRB, #XXXX
mov reg16, imm 01100rrrxxxxxxxxxxxxxxxx
60XXXX MOV X1, #XXXX
61XXXX MOV X2, #XXXX
62XXXX MOV DP, #XXXX
movb reg8, imm 10011rrrxxxxxxxx
98XX MOVB r0, #XX
99XX MOVB r1, #XX
9CXX MOVB r4, #XX
9DXX MOVB r5, #XX
9EXX MOVB r6, #XX
9FXX MOVB r7, #XX
mov DP, SSP 1010000001111010
A07A MOV DP, SSP
mov SSP, imm 101010011000xxxxxxxxxxxxxxxx
A098XXXX MOV SSP, XXXX
movb PSWH, imm 1010001010011000xxxxxxxx
A298XX MOVB PSWH, XX
mov DP, XXXX[reg16] 10110rrrxxxxxxxxxxxxxxxx01111rrr
B1XXXX7A MOV DP, XXXX[X2]
B0XXXX7A MOV DP, XXXX[X1]
B1XXXX78 MOV X1, 0238[X2]
B1XXXX7A MOV DP, 0236[X2]
mov llll[X2], #XXXX 10110001llllllllllllllll10011000xxxxxxxxxxxxxxxx
B1LLLL98XXXX MOV LLLL[X2], #XXXX
mov USP, [DP] 1011001001111011
B27B MOV USP, [DP]
mov [DP], #XXXX 101100101000xxxxxxxxxxxxxxxx
B298XXXX MOV [DP], #XXXX
mov off XX, off XX
B4XX7CMM : MOV off MM, off XX
mov off LL, #XXXX 10110100llllllll10011000xxxxxxxxxxxxxxxx
B4LL98XXXX MOV off LL, #XXXX
mov LL, #XXXX 10110101llllllll10011000xxxxxxxxxxxxxxxx
B5LL98XXXX MOV LL, #XXXX
movb LLLL[reg16], #XX 11000rrrllllllllllllllll10011000xxxxxxxx
C0LLLL98XX MOVB LLLL[X1], #XX
C1DE0298XX MOVB N17[X2], #XX
C1600398XX MOVB N17[X2], #XX
C1DE0298XX MOVB N17[X2], #XX
C1FE0398XX MOVB N17[X2], #XX
C13B0298XX : MOVB N17[X2], #XX
C1 A5 02 98 1C : MOVB N17[X2], #1C
C1 B6 02 98 20 : MOVB N17[X2], #20
movb [reg16], #XX 11000rrr10011000xxxxxxxx
C298XX MOVB [DP], #XX
movb PSWL, off XX 11000100xxxxxxxx10001000
C4XX88 MOVB PSWL, off XX
movb PSWL, XX 11000101xxxxxxxx10001000
C5XX88 MOVB PSWL, XX
movb XX, A 11000101xxxxxxxx10001010
C5XX8A MOVB XX, A
movb off LL, XX 11000101xxxxxxxx01111100llllllll
C5XX7CLL MOVB off LL, XX
movb off LL, #XX 11000100llllllll10011000xxxxxxxx
C4LL98XX MOVB off LL, #XX
movb LL, #XX 11000101llllllll10011000xxxxxxxx
C5LL98XX MOVB LL, #XX