ST72561XX Datasheet, PDF (270/324 Pages) STMicroelectronics – Clock, reset and supply management

Instruction set
ST72561-Auto
Memo
Description
Function/example Dst Src
CALL Call subroutine
CALLR
Call subroutine
relative
CLR Clear
reg, M
CP Arithmetic Compare tst(Reg - M)
reg
M
CPL One Complement A = FFH-A
reg, M
DEC Decrement
dec Y
reg, M
HALT Halt
IRET
Interrupt routine
return
Pop CC, A, X, PC
INC Increment
inc X
reg, M
JP Absolute Jump
jp [TBL.w]
JRA Jump relative always
JRT Jump relative
JRF Never jump
jrf *
JRIH
Jump if ext. INT pin =
1
(ext. INT pin high)
JRIL
Jump if ext. INT pin =
0
(ext. INT pin low)
JRH Jump if H = 1
H=1?
JRNH Jump if H = 0
H=0?
JRM Jump if I1:0 = 11
I1:0 = 11 ?
JRNM Jump if I1:0 <> 11 I1:0 <> 11 ?
JRMI Jump if N = 1 (minus) N = 1 ?
JRPL Jump if N = 0 (plus) N = 0 ?
JREQ Jump if Z = 1 (equal) Z = 1 ?
JRNE
Jump if Z = 0 (not
equal)
Z=0?
JRC Jump if C = 1
C=1?
JRNC Jump if C = 0
C=0?
JRULT Jump if C = 1
Unsigned <
JRUGE Jump if C = 0
Jmp if unsigned >=
JRUGT Jump if (C + Z = 0) Unsigned >
JRULE Jump if (C + Z = 1) Unsigned <=
LD
Load
dst <= src
reg, M M, reg
MUL Multiply
X,A = X * A
A, X,
Y
X, Y, A
I1 H I0 N Z C
01
NZC
NZ 1
NZ
1
0
I1 H I0 N Z C
NZ
NZ
0
0
270/324
Doc ID 12370 Rev 8