Echelon Neuron - Manual (Page 176)

call _drop_n ; ()
_drop_n_preserve_1 (Drop N Bytes from Stack
and Preserve NEXT)
This function preserves NEXT and removes the next N items from the stack.
Stack Transformation: (N, a, b(N) -- a)
Location: Near
Registers Affected: None
Example:
This example drops 3 bytes from the stack and returns a.
pushs #d’3 ; (3, a, b, c, d)
call _drop_n_preserve_1 ; (a)
_drop_n_preserve_2 (Drop N Bytes from Stack
and Preserve NEXT and NEXT+1)
This function preserves two bytes from the stack (in NEXT and the element
following NEXT) and removes the next N items from the stack.
Stack Transformation: (N, a, b, c(N) – a, b)
Location: Near
Registers Affected: None
Example:
This example drops 3 bytes from the stack and returns a, b.
pushs #d’3 ; (3, a, b, c, d, e)
call _drop_n_preserve_2 ; (a, b)
_drop_n_return_1 (Drop N Bytes from Stack,
Preserve NEXT, and Return)
This function preserves NEXT, removes the next N items from the stack and
returns to the caller of the caller of this function.
Stack Transformation: (N, a, b(N) -- a)
Location: Near
Registers Affected: None
166 System-Provided Functions