User`s manual

B.3 WDC High Level API

236

B.3.18 WDC_ReadMemXXX()

PURPOSE

•

WDC_ReadMem8/16/32/64()

reads 1 byte (8 bits) / 2 bytes (16 bits) / 4 bytes (32

bits) / 8 bytes (64 bits), respectively, from a speciﬁed memory address. The address is

read directly in the calling context (user mode / kernel mode).

PROTOTYPE

BYTE WDC_ReadMem8 ( addr , o f f ) ;

WORD WDC_ReadMem16( addr , o f f ) ;

UINT32 WDC_ReadMem32( addr , o f f ) ;

UINT64 WDC_ReadMem64( addr , o f f ) ;

Note: The

WDC_ReadMemXXX

APIs are implemented as macros. The prototypes above

use functions declaration syntax to emphasize the expected return values.

PARAMETERS

Name Type Input/Output

➢ addr DWORD Input

➢ off DWORD Input

DESCRIPTION

Name Description

addr The memory address space to read from

off The offset from the beginning of the speciﬁed address space

(

addr

) to read from

RETURN VALUE

Returns the data that was read from the speciﬁed address.