Zilog Z8F0130 - Manual (Page 389)

UM013037-1212 >> (Shift Right)
Zilog Developer Studio II – Z8 Encore!
User Manual
365
Syntax
<<
>> (Shift Right)
The >> (Shift Right) operator is used to perform a right shift. The first expression to the
left of >> is the value to be shifted. The second expression is the number of bits to the right
the value is to be shifted.
Syntax
>>
- (Subtract)
The - (Subtract) operator is used to subtract one expression from another.
Syntax
-
TOP OF
The TOP OF operator provides the highest allocated address of a group, address space, or
segment, excluding any segment copies when <name> is a segment. The value of TOP OF
is treated as an expression value.
Syntax
TOP OF
<name> can be a group, address space, or segment.
If you declare a segment to begin at TOP OF another segment, the two segments share one
memory location. TOP OF give the address of the last used memory location in a segment,
not the address of the next available memory location.
For example:
LOCATE segment2 at TOP OF segment1
The above example starts segment2 at the address of the most recently used location of
segment1 . To avoid both segments sharing one memory location, use the following syn-
tax:
LOCATE segment2 at (TOP OF segment1) + 1