Memcmp_rx (), Memcmp_xx (), Memset_x () – Maxim Integrated 73S12xxF Software User Manual
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UG_12xxF_016
73S12xxF Software User Guide
Rev. 1.50
65
memcmp_rx ()
Purpose
Memory management – use to compare the contents of an XRAM location and a
ROM location.
Synopsis
Signed char memcmp_rx (
Unsigned char code *dst,
Unsigned char xdata *src,
Unsigned integer len );
Parameters
dst: Input parameter
Specifies the starting address of the ROM data to be compared.
src: Input parameter
Specifies the starting address of the XRAM data to compare to.
len: Input parameter
Specifies the length (in bytes) of data to compare.
Return Codes 0 if the compare is successful (data matched).
Non zero if the source and destination data do not match.
memcmp_xx ()
Purpose
Memory management – use to compare the contents of an XRAM location and
another XRAM location.
Synopsis
Signed char memcmp_xx (
Unsigned char xdata *dst,
Unsigned char xdata *src,
Unsigned integer len );
Parameters
dst: Input parameter
Specifies the starting address of the the first XRAM location to be compared.
src: Input parameter
Specifies the starting address of the the XRAM location to compare to.
len: Input parameter
Specifies the length (in bytes) of data to compare.
Return Codes 0 if the compare is successful (data matched).
Non zero if the source and destination data do not match.
memset_x ()
Purpose
Memory management – use to fill the contents of XRAM with a specified value.
Synopsis
void memset_x (
Unsigned char xdata *dst,
Unsigned char s,
Unsigned integer len );
Parameters
dst: Input parameter
Specifies the starting address of the XRAM locations to fill.
src: Input parameter
Specifies the value to fill the XRAM with.
len: Input parameter
Specifies the number of bytes to fill with the specified data.
Return Codes None.