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CPLA [m]
Complement data memory and place result in the accumulator
Description
Each bit of the specified data memory is logically complemented (1 s complement). Bits
which previously contained a 1 are changed to 0 and vice-versa. The complemented result
is stored in the accumulator and the contents of the data memory remain unchanged.
Operation
ACC
[m]
Affected flag(s)
TO
PDF
OV
Z
AC
C
DAA [m]
Decimal-Adjust accumulator for addition
Description
The accumulator value is adjusted to the BCD (Binary Coded Decimal) code. The accumu-
lator is divided into two nibbles. Each nibble is adjusted to the BCD code and an internal
carry (AC1) will be done if the low nibble of the accumulator is greater than 9. The BCD ad-
justment is done by adding 6 to the original value if the original value is greater than 9 or a
carry (AC or C) is set; otherwise the original value remains unchanged. The result is stored
in the data memory and only the carry flag (C) may be affected.
Operation
If ACC.3~ACC.0 >9 or AC=1
then [m].3~[m].0
(ACC.3~ACC.0)+6, AC1=AC
else [m].3~[m].0
and
If ACC.7~ACC.4+AC1 >9 or C=1
(ACC.3~ACC.0), AC1=0
then [m].7~[m].4
ACC.7~ACC.4+6+AC1,C=1
else [m].7~[m].4
ACC.7~ACC.4+AC1,C=C
Affected flag(s)
TO
PDF
OV
Z
AC
C
DEC [m]
Decrement data memory
Description
Data in the specified data memory is decremented by 1.
Operation
[m]
[m] 1
Affected flag(s)
TO
PDF
OV
Z
AC
C
DECA [m]
Decrement data memory and place result in the accumulator
Description
Data in the specified data memory is decremented by 1, leaving the result in the accumula-
tor. The contents of the data memory remain unchanged.
Operation
ACC
[m] 1
Affected flag(s)
TO
PDF
OV
Z
AC
C
HT23B60
Rev. 1.10
39
March 1, 2004
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT23B60-100QFP-A | 60x11 Pixel Data Bank 8-Bit Mask MCU |
| HT23C010 | CMOS 128K x 8-Bit Mask ROM(CMOS 128K x 8位掩模式ROM) |
| HT23C020 | CMOS 256K x 8-Bit Mask ROM(CMOS 256K x 8位掩模式ROM) |
| HT23C040 | CMOS 512K x 8-Bit Mask ROM(CMOS 512K x 8位掩模式ROM) |
| HT23C128 | CMOS 16Kx 8-Bit Mask ROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT23B60-100QFP-A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:60x11 Pixel Data Bank 8-Bit Mask MCU |
| HT23C010 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 128Kⅴ 8-Bit Mask ROM |
| HT23C020 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 256Kx 8-Bit Mask ROM |
| HT23C040 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 512Kx8-Bit Mask ROM |
| HT23C040H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS 512K?8-Bit High Speed Mask ROM |
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