Echelon Neuron - Manual (Page 188)

Registers Affected: None
Example:
This example uses a base of h’efe3 and an index of 10.
pushd #h’efe3 ; (h’e3, h’ef)
push #d’10 ; (d’10, h’e3, h’ef)
callf _lshift8by1_add16 ; (h’f7, h’ef)
_lshift8by2_add16 (Left Shift By 2 and Add,
Converts 8 Bits to 16 Bits)
This function takes an index, converts it to a 16-bit quantity, shifts it left twice,
and adds the result to a base value.
Stack Transformation: (index, base(2) -- base(2)+(index(2)<<2))
Location: Far
Registers Affected: None
Example:
This example uses a base of h’efe3 and an index of 5.
pushd #h’efe3 ; (h’e3, h’ef)
push #d’5 ; (d’5, h’e3, h’ef)
callf _lshift8by2_add16 ; (h’f7, h’ef)
_max16 (Maximum Value, 16 Bit)
This function computes the maximum of two unsigned 16-bit integers.
Stack Transformation: (a(2), b(2) -- max(a(2),b(2)))
Location: Near
Registers Affected: None
Example:
This example gets the maximum of 8 and 2.
pushd #d’2 ; (d’2, 0)
pushd #d’8 ; (d’8, 0, d’2, 0)
call _max16 ; (d’8, 0)
_max16s (Maximum Signed Value, 16 Bit)
This function computes the maximum of two signed 16-bit integers.
178 System-Provided Functions