fxarithmetic-shift-right

[procedure] fxarithmetic-shift fx1 fx2

[procedure] fxarithmetic-shift-left fx1 fx2

[procedure] fxarithmetic-shift-right fx1 fx2

R6RS: fixnum-specific bitwise shifts. See fixnum? for other fixnum operations. See arithmetic-shift for generic shift operations.

Other implementations have fxshl, fxshr, fxsll, fxsrl, fxsra.