Strlen_x (), Strlen_r (), Log2 () – Maxim Integrated 73S12xxF Software User Manual
Page 66: E 66)

73S12xxF Software User Guide
UG_12xxF_016
66
Rev. 1.50
strlen_x ()
Purpose
Compute the string length of ASCII data in XDATA (XRAM).
Synopsis
unsigned int strlen_x ( IN unsigned char xdata *psource );
Parameters
psource: Input parameter
Specifies a pointer to the source data in XRAM.
Return Value
Length of the ASCII data string (in bytes) in the specified XRAM location.
strlen_r ()
Purpose
Compute the string length of ASCII data in ROM (Flash).
Synopsis
unsigned int strlen_x ( IN unsigned char code *psource );
Parameters
psource: Input parameter
Specifies a pointer to the source data in Flash.
Return Value
Length of the ASCII data (in bytes) in the specified Flash ROM location.
Log2 ()
Purpose
Compute the logarithm (base 2) of the input.
Synopsis
unsigned int log2 ( IN unsigned int unumber );
Parameters
unumber: Input parameter
The input value to determine the log2 of.
Return Value
log2 of the input.
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