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LSR (Super FX)

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Basic Info
Addressing Mode Opcode Length ROM Speed RAM Speed Cache Speed
Implied (type 1) 03 1 byte 3 cycles 3 cycles 1 cycle
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0 . 0

LSR (Logical Shift Right) is a Super FX instruction that shifts all bits of the source register's value to the right one bit while shifting a zero into the most significant bit, storing the result in the destination register. Bit 0 is shifted into CY. The source register itself is left unchanged.

Syntax

LSR

Example

Let:

Sreg : R8
Dreg : R0
R8 = b53fh (1011 0101 0011 1111b)

After executing LSR:

R0 = 5a9fh (0101 1010 1001 1111b)
CY = 1

gsu lsr.png

See Also

External Links