Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Manual do Utilizador Página 157

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7 DETAILS OF INSTRUCTIONS
S1C33 FAMILY C33 PE CORE MANUAL
EPSON
149
rl %rd, imm5
Function
Rotate to the left
Standard) Rotate the content of rd to the left as many bits as specified by
imm5 (0 to 31),
LSB
MSB
Extension 1) Unusable
Extension 2) Unusable
Code
When imm5(4) = 0, rotated to the left by 0 to 15 bits
15 12 11 8 7 4 3 0
1 0 0 1 1 1 0 0
imm5(3:0) r d
0x9C__
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When imm5(4) = 1, rotated to the left by 16 to 31 bits
15 12 11 8 7 4 3 0
0 0 1 1 0 1 1 1
imm5(3:0) r d
0x37__
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Flag
IE C V Z N
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Mode
Src: Immediate (unsigned)
Dst: Register direct
%rd = %r0 to %r15
CLK
One cycle
Description
(1) Standard
The rd register is rotated as shown in the diagram below. The number of bits to be shifted can be
specified in the range of 0 to 31 by the 5-bit immediate
imm5. The value in the most significant
bit of the rd register is placed in the least significant bit.
31
rd register
(after execution)
0
(2) Delayed instruction
This instruction may be executed as a delayed instruction by writing it directly after a branch
instruction with the d bit included.
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