excep68.h File Reference

Detailed Description

68k exception and interruption definition header.

Author:: Benjamin Gerard <ben@sashipa.com>

Date:: 1999/13/03

Id: excep68.h,v 2.1 2003/10/29 06:50:41 benjihan Exp

Go to the source code of this file.

68k exceptions and interruptions

68K interruptions are defined by a vector and a level.
The interrupt vector is a long word stored in memory at vector address. It is loaded when position loaded when this interruption occurs. The level is the value transfered to the IPL field of SR, so that no interruption from lower level could occur.

#define RESET_VECTOR   0x00

RESET vector address.

#define RESET_LVL   7

RESET interruption level.

#define BUSERROR_VECTOR   0x08

BUSERROR vector address.

#define BUSERROR_LVL   7

BUSERROR interruption level.

#define ADRERROR_VECTOR   0x0C

ADRERROR vector address.

#define ADRERROR_LVL   7

ADRERROR interruption level.

#define ILLEGAL_VECTOR   0x10

ILLEGAL vector address.

#define ILLEGAL_LVL   7

ILLEGAL interruption level.

#define DIVIDE_VECTOR   0x14

DIVIDE vector address.

#define DIVIDE_LVL   7

DIVIDE interruption level.

#define CHK_VECTOR   0x18

CHK vector address.

#define CHK_LVL   7

CHK interruption level.

#define TRAPV_VECTOR   0x1C

TRAPV vector address.

#define TRAPV_LVL   7

TRAPV interruption level.

#define LINEA_VECTOR   0x28

LINEA vector address.

#define LINEA_LVL   7

LINEA interruption level.

#define LINEF_VECTOR   0x28

LINEF vector address.

#define LINEF_LVL   7

LINEF interruption level.

#define TRAP_VECTOR(N)   (0x80+(4*(N)))

TRAP #N vector address.

#define TRAP_LVL   7

TRAP #N interruption level.