ROTL ROTATE LONG
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Purpose |
rotate of integer |
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Format |
opcode cnt.rb, src.rl, dst.wl |
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Operation |
dst ß src rotated cnt bits; |
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Condition codes |
N ß dst LSS 0; Z ß dst EQL 0; V ß 0; C ß C; |
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Exceptions |
None |
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Opcodes |
9C ROTL Rotate Long |
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Description |
The source operand is rotated logically by the number of bits specified by the court operand and the destination operand is replaced by the result. The source operand is unaffected. A positive count operand rotates to the left. A negative count operand rotates to the right. A 0 count operand replaces the destination operand with the source operand. |
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Notes |
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Example 1
.text
.word 0
movl $0xff, r1
rotl $8, r1, r2 # r2 is 0xff00
movl $0xff000000, r1
rotl $8, r1, r2 # r2 is 0xff
movl $0xff, r1
rotl $-8, r1, r2 # r2 is $0xff000000
halt