
eZ8
™
CPU Core
User Manual
UM012820-0810 SRA Instruction
224
SRA
Definition
Shift Right Arithmetic.
Syntax
SRA dst
Operation
Description
This instruction performs an arithmetic shift to the right by one bit posi-
tion on the destination operand. Bit 0 replaces the Carry (C) flag. The
value of Bit 7 (the Sign bit) does not change, but its value shifts into Bit 6.
Flags
C Set if the bit rotated from the least-significant bit position was 1
(that is, Bit 0 was 1)
Z Set if the result is zero; reset otherwise
S Set if Bit 7 of the result is set; reset otherwise
V Reset to 0
D Unaffected
H Unaffected
D7 D6 D5 D4 D3 D2 D1 D0
dst
C
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