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git-svn-id: svn://svn.cc65.org/cc65/trunk@2110 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
2003-05-01 22:38:47 +00:00
parent 2a5fbd00ef
commit 8fb90af8ff
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src/sim65/addrspace.h Normal file
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/*****************************************************************************/
/* */
/* addrspace.h */
/* */
/* CPU address space for the 6502 simulator */
/* */
/* */
/* */
/* (C) 2003 Ullrich von Bassewitz */
/* R<>merstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef ADDRSPACE_H
#define ADDRSPACE_H
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Forwards */
struct CPUData;
struct ChipInstance;
/* Forwards */
typedef struct AddressSpace AddressSpace;
struct AddressSpace {
struct CPU* CPU; /* Backpointer to CPU */
unsigned Size; /* Address space size */
struct ChipInstance* Data[1]; /* Pointer to chips, dynamically! */
};
/*****************************************************************************/
/* Code */
/*****************************************************************************/
AddressSpace* NewAddressSpace (unsigned Size);
/* Allocate a new address space and return it */
void ASWrite (AddressSpace* AS, unsigned Addr, unsigned char Val);
/* Write a byte to a given location */
unsigned char ASRead (AddressSpace* AS, unsigned Addr);
/* Read a byte from a location */
void ASWriteCtrl (AddressSpace* AS, unsigned Addr, unsigned char Val);
/* Write a byte to a given location */
unsigned char ASReadCtrl (AddressSpace* AS, unsigned Addr);
/* Read a byte from a location */
void ASAssignChip (AddressSpace* AS, struct ChipInstance* CI,
unsigned Addr, unsigned Range);
/* Assign a chip instance to memory locations */
struct ChipInstance* ASGetChip (const AddressSpace* AS, unsigned Addr);
/* Get the chip that is located at the given address (may return NULL). */
/* End of addrspace.h */
#endif