/*	ENDIANAC.h 	Copyright (C) 2006 Bernd Schmidt, Paul C. Pratt 	You can redistribute this file and/or modify it under the terms	of version 2 of the GNU General Public License as published by	the Free Software Foundation.  You should have received a copy	of the license along with this file; see the file COPYING. 	This file is distributed in the hope that it will be useful,	but WITHOUT ANY WARRANTY; without even the implied warranty of	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the	license for more details.*/ /*	ENDIAN ACcess 	Deals with endian issues in memory access. 	This code is adapted from code in the Un*x Amiga Emulator by	Bernd Schmidt, as found in vMac by Philip Cummins.*/ #ifdef ENDIANAC_H#ifndef AllFiles#error "header already included"#endif#else#define ENDIANAC_H#endif  #define do_get_mem_byte(a) ((ui3r)*((ui3b *)(a))) #if BigEndianUnaligned#define do_get_mem_word(a) ((ui4r)*((ui4b *)(a)))#elseLOCALINLINEFUNC ui4r do_get_mem_word(ui3p a){#if LittleEndianUnaligned	ui4b b = (*((ui4b *)(a))); 	return ((b & 0x00FF) << 8) | ((b >> 8) & 0x00FF);#else	return (((ui4r)*a) << 8) | ((ui4r)*(a + 1));#endif}#endif #if BigEndianUnaligned#define do_get_mem_long(a) ((ui5r)*((ui5b *)(a)))#elif HaveMySwapUi5r && LittleEndianUnaligned#define do_get_mem_long(a) (MySwapUi5r((ui5r)*((ui5b *)(a))))#elseLOCALINLINEFUNC ui5r do_get_mem_long(ui3p a){#if LittleEndianUnaligned#if 0	ui5b b = (*((ui5b *)(a)));	return ((b & 0x000000FF) << 24)		|  ((b & 0x0000FF00) <<  8)		|  ((b & 0x00FF0000) >>  8)		|  ((b & 0xFF000000) >> 24);#endif#if 0	ui5b b = (*((ui5b *)(a)));	return ((b << 24) & 0xFF000000)		|  ((b <<  8) & 0x00FF0000)		|  ((b >>  8) & 0x0000FF00)		|  ((b >> 24) & 0x000000FF);	/*		no, this doesn't do well with apple tools,		instead try combining two 16 bit swaps.	*/#endif	ui5b b = (*((ui5b *)(a)));	ui4b b1 = b;	ui4b b2 = b >> 16;	ui4b c1 = ((b1 & 0x00FF) << 8) | ((b1 >> 8) & 0x00FF);	ui4b c2 = ((b2 & 0x00FF) << 8) | ((b2 >> 8) & 0x00FF); 	return (((ui5r)c1) << 16) | ((ui5r)c2);	/*		better, though still doesn't use BSWAP		instruction with apple tools for intel.	*/#else	return (((ui5r)*a) << 24) | (((ui5r)*(a + 1)) << 16)		| (((ui5r)*(a + 2)) << 8) | ((ui5r)*(a + 3));#endif}#endif #define do_put_mem_byte(a, v) ((*((ui3b *)(a))) = (v)) #if BigEndianUnaligned#define do_put_mem_word(a, v) ((*((ui4b *)(a))) = (v))#elseLOCALINLINEFUNC void do_put_mem_word(ui3p a, ui4r v){#if LittleEndianUnaligned	ui4b b = ((v & 0x00FF) << 8) | ((v >> 8) & 0x00FF); 	*(ui4b *)a = b;#else	*a = v >> 8;	*(a + 1) = v;#endif}#endif #if BigEndianUnaligned#define do_put_mem_long(a, v) ((*((ui5b *)(a))) = (v))#elif HaveMySwapUi5r && LittleEndianUnaligned#define do_put_mem_long(a, v) ((*((ui5b *)(a))) = MySwapUi5r(v))#elseLOCALINLINEFUNC void do_put_mem_long(ui3p a, ui5r v){#if LittleEndianUnaligned	ui4b b1 = v;	ui4b b2 = v >> 16;	ui4b c1 = ((b1 & 0x00FF) << 8) | ((b1 >> 8) & 0x00FF);	ui4b c2 = ((b2 & 0x00FF) << 8) | ((b2 >> 8) & 0x00FF); 	*(ui5b *)a = (c1 << 16) | c2;#else	*a = v >> 24;	*(a + 1) = v >> 16;	*(a + 2) = v >> 8;	*(a + 3) = v;#endif}#endif