ZBasic System Library
239
ZBasic Microcontrollers
Type
Subroutine
Invocation
PutBit(var, bitNumber, val)
Parameter
Method
Type
Description
var
ByRef
any type
The variable to which the bit will be written.
bitNumber
ByVal
int8/16
The bit number to write.
val
ByVal
Byte
The bit value.
Discussion
This routine writes a single bit to memory beginning at the location of the specified variable. Bit numbers
0-7 are written to the byte at the specified location, bit numbers 8-15 are written to the subsequent byte,
etc. In each case, the lower bit number corresponds to the least significant bit of the byte while the
highest bit number corresponds to the most significant bit of a byte.
Only the least significant bit of the val parameter is used; the remaining bits are ignored.
Caution
If you specify a bit number beyond the number of bits in the specified variable, a byte in memory following
the variable will be modified, perhaps with undesirable results.
Compatibility
In BasicX compatibility mode, the bitNumber parameter may only be specified using a Byte value.
See Also
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