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PM0044 Datasheet(PDF) 101 Page - STMicroelectronics

No. de pieza PM0044
Descripción Electrónicos  STM8 CPU programming manual
PDF  162 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0044 Datasheet(HTML) 101 Page - STMicroelectronics

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PM0044
STM8 instruction set
Doc ID 13590 Rev 3
101/162
Syntax
DIV dst,A
e.g. DIV X,A
Operation
dst <= dst / A (Quotient)
A <= dst%A (Remainder)
Description
Divides a 16-bit unsigned value, dividend, contained in an index register (X
or Y) by an 8-bit value, divisor, contained in A. The quotient is placed in the
same index register and the remainder is placed in A.
The register values are unchanged in the case of a division by zero.
Note:
Note: This instruction is interruptible, generating a latency of 1 cycle only.
Instruction overview
V
⇒
0
Reset.
H
⇒
0
Reset.
N
⇒
0
Reset.
Z
⇒
Q15.Q14.Q13.Q12.Q11.Q10.Q9.Q8.Q7.Q6.Q5.Q4.Q3.Q2.Q1.Q0
Set if the quotient is zero (0x0000), cleared otherwise.
C
⇒
A7.A6.A5.A4.A3.A2.A1.A0
Set if division by 0, cleared otherwise.
Detailed description
See also: DIVW, ADD, ADC, SUB, SBC, MUL
DIV
Divide (unsigned)
DIV
mnem
dst
src
Affected condition flags
VI1
H
I0
N
Z
C
DIV
X
A
0
-
0
-
0
Z
C
DIV
Y
A
0
-
0
-
0
Z
C
dst
src
Asm
cy
lgth
Op-code(s)
ST7
X
A
DIV X,A
2 to 17
1
62
Y
A
DIV Y,A
2 to 17
2
90
62



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