91 lines
3.2 KiB
C
91 lines
3.2 KiB
C
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/* Copyright (C) 1993 by Zardoz Software, Inc. */
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/*******************************************************************************
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* FILE NAME: SETJMP.h
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*
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* TITLE: This function prototypes and data type definitions for the Setjmp Functions.
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*
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* DATA_RIGHTS: Western Design Center and R & C Services Proprietary
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* Copyright(C) 1980-2004
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* All rights reserved. Reproduction in any manner,
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* in whole or in part, is strictly prohibited without
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* the prior written approval of R & C Services or
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* Western Design Center.
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*
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* DESCRIPTION: This file describes function prototypes and data type
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* definitions used for Setjmp functions.
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*
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* The <setjmp.h> header relates to the C phenomenon known as setjmp/longjmp.
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* It is used to escape out of the current situation into a previous one.
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* A typical example is in an editor, where hitting DEL breaks off the current
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* command and puts the editor back in the main loop, though care has to be
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* taken when the DEL occurs while executing a library function, since
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* some of them are not reentrant.
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*
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*
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*
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* SPECIAL CONSIDERATIONS:
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* __SetJmp_Struct_802: ; Structure for SetJmp
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* __SetJmp_PC rmb 2 ; actual Long Jump "to" address in code (16 bit Address)
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* __SetJmp_SP rmb 1 ; Don't need to save the Status Reg, X 0r Acc?
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* __SetJmp_Y rmb 1 ;Y Reg
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*
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* __SetJmp_Struct_816: Structure for SetJmp
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* __SetJmp_PC rmb 3 Program Counter, actual Long Jump "to" address in code (24 bit Address)
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* __SetJmp_SP rmb 2 Stack Pointer Don't need to save the Status Reg, X 0r Acc?
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* __SetJmp_Y rmb 2 Y Reg
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* __SetJmp_DP rmb 2 Direct Page Reg
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* __SetJmp_DB rmb 1 Data Bank Reg
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* Program Bank Reg (NOT NEEDED!!!)
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*
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*
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* AUTHOR: R. Greenthal
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*
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*
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* CREATION DATE: March 31,2004
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*
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* REVISION HISTORY
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* Name Date Description
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* ------------ ---------- ----------------------------------------------
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* R. Greenthal 03/31/2004 Initial
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* 05/01/2004 Added SetJmp_Struct Def
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*
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*******************************************************************************
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*/
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#ifndef __SETJMP_H
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#define __SETJMP_H
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#if USING_134
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#define __JBUFSIZE (4*sizeof(char)) // 4 Bytes, Don't need to save Acc, X, & Status Reg
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#elif USING_02
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#define __JBUFSIZE (4*sizeof(char))
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#elif USING_265
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#define __JBUFSIZE (3*sizeof(char)+3*2*sizeof(char)+sizeof(char)) // 10 Bytes, Don't need to save Acc, X, & Status Reg
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#elif USING_816
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#define __JBUFSIZE (3*sizeof(char)+3*2*sizeof(char)+sizeof(char))
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#else
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#asm
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EXIT "Not Valid Processor: Use -DUSING_816, -DUSING_02, etc. ! ! ! ! ! ! ! ! ! ! ! !"
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#endasm
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#endif
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#ifndef __JBUFSIZE
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EXIT "Not Valid Processor: Use -DUSING_816, -DUSING_02, etc. ! ! ! ! ! ! ! ! ! ! ! !"
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#endif
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typedef char jmp_buf[__JBUFSIZE];
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int setjmp(jmp_buf _env);
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void longjmp(jmp_buf _env, int _val);
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#endif // End of __SETJMP_H
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/**************************************************/
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/* End of File SETJMP.H */
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/**************************************************/
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