DioGetJumpAddress

Applies To

GX5150, File.

Purpose

Returns register A or B Jump address.

Syntax

DioGetJumpAddress (nMasterHandle, nRegister, pdwJumpAddress, pnStatus)

Parameters

Name	Type	Comments
nMasterHandle	SHORT	Master or File board handle.
nRegister	SHORT	0 Register A. 1 Register B.
pdwJumpAddress	PDWORD	Jump address.
pnStatus	PSHORT	Returned status: 0 on success, negative number on failure.

Comments

The jump address can be any step in the physical memory range.

The jump address must reflect the current Master board width setting. If the width were set to 16-bit, then the available address space is double what it would be if it were set to 32-bit. If the width were set to 8-bit, then the available address space is quadruple what it would be if it were set to 32-bit.

Example

The following example sets the register A jump address to 123 and then verifies the address by calling DioGetJumpAddress:

SHORT nStatus;

DWORD dwAddress;

DioSetJumpAddress(nMasterHandle, 0, 123, &nStatus);

DioGetJumpAddress(nMasterHandle, 0, &dwAddress, &nStatus);