Echelon Neuron - Manual (Page 202)

Stack Transformation: (a -- a>>n)
Location: Near
Registers Affected: None
Example:
This example shifts 16 right 3.
push #d’16 ; (d’16)
call _r_shift8_3 ; (d’2)
_r_shift8s (Right Shift Signed, 8 Bit)
This function shifts a signed integer right. b must be in the range 0..7.
Stack Transformation: (a, b -- a>>b)
Location: Near
Registers Affected: None
Example:
This example shifts -16 right 2.
pushs #d’2 ; (d’2)
push #@lb(-d’16) ; (-d’16, d’2)
call _r_shift8s ; (-d’4)
_register_call (Call Function from Register)
This function calls a function through a pointer. The supplied address must be
one less than the address to be called.
Stack Transformation: (address(2)-1 --)
Location: Near
Registers Affected: None (not including whatever is done by the called function)
Example:
This example invokes a function at address h’f423 (by specifying h’f422).
pushd #h’f422 ; (h’f422)
call _register_call ; ()
192 System-Provided Functions