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ST6391 Datasheet(PDF) 58 Page - STMicroelectronics

Part # ST6391
Description  8-BIT HCMOS MCUs FOR TV FREQUENCY SYNTHESIS WITH OSD
PDF  68 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST6391 Datasheet(HTML) 58 Page - STMicroelectronics

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SOFTWARE DESCRIPTION (Continued)
Arithmetic and Logic. These instructions are
used to perform the arithmetic calculations and
logic operations. In AND, ADD, CP, SUB instruc-
tions one operand is always the accumulatorwhile
the other can be either a data space memory
content or an immediate value in relation with the
addressing mode. In CLR, DEC, INC instructions
the operand can be any of the 256 data space
addresses. In COM, RLC, SLA the operand is
always the accumulator. See Table 17.
Instruction
Addressing Mode
Bytes
Cycles
Flags
ZC
ADD A, (X)
Indirect
1
4
∆∆
ADD A, (Y)
Indirect
1
4
∆∆
ADD A, rr
Direct
2
4
∆∆
ADDI A, #N
Immediate
2
4
∆∆
AND A, (X)
Indirect
1
4
∆
*
AND A, (Y)
Indirect
1
4
∆
*
AND A, rr
Direct
2
4
∆
*
ANDI A, #N
Immediate
2
4
∆
*
CLR A
Short Direct
2
4
∆∆
CLR rr
Direct
3
4
*
*
COM A
Inherent
1
4
∆∆
CP A, (X)
Indirect
1
4
∆∆
CP A, (Y)
Indirect
1
4
∆∆
CP A, rr
Direct
2
4
∆∆
CPI A, #N
Immediate
2
4
∆∆
DEC X
Short Direct
1
4
∆
*
DEC Y
Short Direct
1
4
∆
*
DEC V
Short Direct
1
4
∆
*
DEC W
Short Direct
1
4
∆
*
DEC A
Direct
2
4
∆
*
DEC rr
Direct
2
4
∆
*
DEC (X)
Indirect
1
4
∆
*
DEC (Y)
Indirect
1
4
∆
*
INC X
Short Direct
1
4
∆
*
INC Y
Short Direct
1
4
∆
*
INC V
Short Direct
1
4
∆
*
INC W
Short Direct
1
4
∆
*
INC A
Direct
2
4
∆
*
INC rr
Direct
2
4
∆
*
INC (X)
Indirect
1
4
∆
*
INC (Y)
Indirect
1
4
∆
*
RLC A
Inherent
1
4
∆∆
SLA A
Inherent
2
4
∆∆
SUB A, (X)
Indirect
1
4
∆∆
SUB A, (Y)
Indirect
1
4
∆∆
SUB A, rr
Direct
2
4
∆∆
SUBI A, #N
Immediate
2
4
∆∆
Notes:
X,Y. Indirect Register Pointers, V & W Short Direct Registers
∆. Affected
# . Immediate data (stored in ROM memory)
* . Not Affected
rr.
Data space register
Table 17. Arithmetic & Logic Instructions
®
ST6391,92,93,95,97,99
54/64



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