<=fx

[procedure] =fx fixnum1 fixnum2

[procedure] <fx fixnum1 fixnum2

[procedure] <=fx fixnum1 fixnum2

[procedure] >fx fixnum1 fixnum2

[procedure] >=fx fixnum1 fixnum2

Bigloo: comparison ops specialized for fixnums. See also fixnum?, flonum?.

Chicken and ChezScheme have fx= etc.

R6RS has fx=? etc.