/[pearpc]/src/cpu/cpu_generic/ppc_dec.h
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Annotation of /src/cpu/cpu_generic/ppc_dec.h

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Wed Sep 5 17:11:21 2007 UTC (12 years, 3 months ago) by dpavlin
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1 dpavlin 1 /*
2     * PearPC
3     * ppc_dec.h
4     *
5     * Copyright (C) 2003, 2004 Sebastian Biallas (sb@biallas.net)
6     *
7     * This program is free software; you can redistribute it and/or modify
8     * it under the terms of the GNU General Public License version 2 as
9     * published by the Free Software Foundation.
10     *
11     * This program is distributed in the hope that it will be useful,
12     * but WITHOUT ANY WARRANTY; without even the implied warranty of
13     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14     * GNU General Public License for more details.
15     *
16     * You should have received a copy of the GNU General Public License
17     * along with this program; if not, write to the Free Software
18     * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19     */
20    
21     #ifndef __PPC_DEC_H__
22     #define __PPC_DEC_H__
23    
24     #include "system/types.h"
25    
26     void FASTCALL ppc_exec_opc();
27     void ppc_dec_init();
28    
29     typedef void (*ppc_opc_function)();
30    
31     #define PPC_OPC_ASSERT(v)
32    
33     #define PPC_OPC_MAIN(opc) (((opc)>>26)&0x3f)
34     #define PPC_OPC_EXT(opc) (((opc)>>1)&0x3ff)
35     #define PPC_OPC_Rc 1
36     #define PPC_OPC_OE (1<<10)
37     #define PPC_OPC_LK 1
38     #define PPC_OPC_AA (1<<1)
39    
40     #define PPC_OPC_TEMPL_A(opc, rD, rA, rB, rC) {rD=((opc)>>21)&0x1f;rA=((opc)>>16)&0x1f;rB=((opc)>>11)&0x1f;rC=((opc)>>6)&0x1f;}
41     #define PPC_OPC_TEMPL_B(opc, BO, BI, BD) {BO=((opc)>>21)&0x1f;BI=((opc)>>16)&0x1f;BD=(opc)&0xfffc;if (BD&0x8000) BD |= 0xffff0000;}
42     #define PPC_OPC_TEMPL_D_SImm(opc, rD, rA, imm) {rD=((opc)>>21)&0x1f;rA=((opc)>>16)&0x1f;imm=(opc)&0xffff;if (imm & 0x8000) imm |= 0xffff0000;}
43     #define PPC_OPC_TEMPL_D_UImm(opc, rD, rA, imm) {rD=((opc)>>21)&0x1f;rA=((opc)>>16)&0x1f;imm=(opc)&0xffff;}
44     #define PPC_OPC_TEMPL_D_Shift16(opc, rD, rA, imm) {rD=((opc)>>21)&0x1f;rA=((opc)>>16)&0x1f;imm=(opc)<<16;}
45     #define PPC_OPC_TEMPL_I(opc, LI) {LI=(opc)&0x3fffffc;if (LI&0x02000000) LI |= 0xfc000000;}
46     #define PPC_OPC_TEMPL_M(opc, rS, rA, SH, MB, ME) {rS=((opc)>>21)&0x1f;rA=((opc)>>16)&0x1f;SH=((opc)>>11)&0x1f;MB=((opc)>>6)&0x1f;ME=((opc)>>1)&0x1f;}
47     #define PPC_OPC_TEMPL_X(opc, rS, rA, rB) {rS=((opc)>>21)&0x1f;rA=((opc)>>16)&0x1f;rB=((opc)>>11)&0x1f;}
48     #define PPC_OPC_TEMPL_XFX(opc, rS, CRM) {rS=((opc)>>21)&0x1f;CRM=((opc)>>12)&0xff;}
49     #define PPC_OPC_TEMPL_XO(opc, rS, rA, rB) {rS=((opc)>>21)&0x1f;rA=((opc)>>16)&0x1f;rB=((opc)>>11)&0x1f;}
50     #define PPC_OPC_TEMPL_XL(opc, BO, BI, BD) {BO=((opc)>>21)&0x1f;BI=((opc)>>16)&0x1f;BD=((opc)>>11)&0x1f;}
51     #define PPC_OPC_TEMPL_XFL(opc, rB, FM) {rB=((opc)>>11)&0x1f;FM=((opc)>>17)&0xff;}
52    
53     #endif

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