Specifications

BASIC Stamp II
Parallax, Inc. • BASIC Stamp Programming Manual 1.8 • Page 243
2
Its logic is, ‘if value is less than limit, then make value = limit; if value
is greater than or equal to limit, leave value alone.’ MIN works in posi-
tive math only; its comparisons are not valid when used on two’s
complement negative numbers, since the positive-integer representa-
tion of a number like -1 ($FFFF or 65535 in unsigned decimal) is larger
than that of a number like 10 ($000A or 10 decimal). Use MIN only
with unsigned integers. Because of the way fixed-size integers work,
you should be careful when using an expression involving MIN 0. For
example, 0-1 MIN 0 will result in 65535 because of the way fixed-size
integers wrap around.
for w1 = 100 to 0 step -10 ' Walk value of w1 from 100 to 0.
debug ? w1 MIN 50 ' Show w1, but use MIN to clamp at 50.
next
MAX
Limits a value to a specified 16-bit positive maximum. The syntax of
MAX is:
value MAX limit
Where:
• value is value to perform the MAX function upon.
• limit is the maximum value that value is allowed to be.
Its logic is, ‘if value is greater than limit, then make value = limit; if
value is less than or equal to limit, leave value alone.’ MAX works in
positive math only; its comparisons are not valid when used on two’s
complement negative numbers, since the positive-integer representa-
tion of a number like -1 ($FFFF or 65535 in unsigned decimal) is larger
than that of a number like 10 ($000A or 10 decimal). Use MAX only
with unsigned integers. Also be careful of expressions involving MAX
65535. For example 65535 + 1 MAX 65535 will result in 0 because of the
way fixed-size integers wrap around.
for w1 = 0 to 100 step 10 ' Walk value of w1 from 0 to 100.
debug ? w1 MAX 50 ' Show w1, but use MAX to clamp at 50.
next