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shifting bits in multiple bytes array

Krasimir Pashov

Hello All,

I have non-standart function that shifting bits in multi bytes.

Syntax:
 shift_left (address, bytes, value);

Parameters:
 address is a pointer to memory.

 bytes is a count of the number of bytes to work with

 value is a 0 to 1 to be shifted in.

Returns:
 0 or 1 for the bit shifted out

Function:
 Shifts a bit into an array or structure. The address may be an array identifier or an address to a structure (such as &data). Bit 0 of the lowest byte in RAM is treated as the LSB

Any idea how to implement efficient "C" code for 8051?

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