Rabbit 2000, Инструкция и справочник, Страница: 147 / 174

Instruction Reference Manual 143
Description
Logically shifts to the right the bits in r (any of the registers A, B, C, D, E, H, or L). Each bit is shifted to the
next lowest-order bit position (Bit 7 shifts to bit 6, etc.) Bit 0 shift to the C flag. Bit 7 is reset. See Figure 9 on
page 142.
SRL r
Opcode Instruction Clocks Operation
——
CB 3F
CB 38
CB 39
CB 3A
CB 3B
CB 3C
CB 3D
SRL r
SRL A
SRL B
SRL C
SRL D
SRL E
SRL H
SRL L
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
r = {0, r [7,1]}; CF = r [0]
A = {0,A[7,1]}; CF = A[0]
B = {0,B[7,1]}; CF = B[0]
C = {0,C[7,1]}; CF = C[0]
D = {0,D[7,1]}; CF = D[0]
E = {0,E[7,1]}; CF = E[0]
H = {0,H[7,1]}; CF = H[0]
L = {0,L[7,1]}; CF = L[0]
Flags ALTD I/O
S Z L/V C F R SP S D
• • L • • •