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CPU Cores keep their own flag handling

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New lazyflags header file


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1086
This commit is contained in:
Sjoerd van der Berg 2003-07-06 13:10:28 +00:00
parent cbd33bfa95
commit 708d8cb3c3
8 changed files with 160 additions and 29 deletions
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94
src/cpu/lazyflags.h Normal file
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/*
* Copyright (C) 2002-2003 The DOSBox Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//Flag Handling
Bitu get_CF(void);
Bitu get_AF(void);
Bitu get_ZF(void);
Bitu get_SF(void);
Bitu get_OF(void);
Bitu get_PF(void);
#define SETFLAGSb(FLAGB) \
{ \
flags.type=t_UNKNOWN; \
flags.word&=0xffffff00; \
flags.word|=(FLAGB&0xff); \
}
#define SETFLAGSw(FLAGW) \
{ \
flags.type=t_UNKNOWN; \
CPU_SetFlagsw(FLAGW); \
}
#define SETFLAGSd(FLAGD) \
{ \
flags.type=t_UNKNOWN; \
CPU_SetFlags(FLAGD); \
}
#define FILLFLAGS \
{ \
flags.word=(flags.word & ~FLAG_MASK) | \
(get_CF() ? FLAG_CF : 0 ) | \
(get_PF() ? FLAG_PF : 0 ) | \
(get_AF() ? FLAG_AF : 0 ) | \
(get_ZF() ? FLAG_ZF : 0 ) | \
(get_SF() ? FLAG_SF : 0 ) | \
(get_OF() ? FLAG_OF : 0 ); \
flags.type=t_UNKNOWN; \
}
#define LoadCF SETFLAGBIT(CF,get_CF());
#define LoadZF SETFLAGBIT(ZF,get_ZF());
#define LoadSF SETFLAGBIT(SF,get_SF());
#define LoadOF SETFLAGBIT(OF,get_OF());
#define LoadAF SETFLAGBIT(AF,get_AF());
//Types of Flag changing instructions
enum {
t_UNKNOWN=0,
t_ADDb,t_ADDw,t_ADDd,
t_ORb,t_ORw,t_ORd,
t_ADCb,t_ADCw,t_ADCd,
t_SBBb,t_SBBw,t_SBBd,
t_ANDb,t_ANDw,t_ANDd,
t_SUBb,t_SUBw,t_SUBd,
t_XORb,t_XORw,t_XORd,
t_CMPb,t_CMPw,t_CMPd,
t_INCb,t_INCw,t_INCd,
t_DECb,t_DECw,t_DECd,
t_TESTb,t_TESTw,t_TESTd,
t_SHLb,t_SHLw,t_SHLd,
t_SHRb,t_SHRw,t_SHRd,
t_SARb,t_SARw,t_SARd,
t_ROLb,t_ROLw,t_ROLd,
t_RORb,t_RORw,t_RORd,
t_RCLb,t_RCLw,t_RCLd,
t_RCRb,t_RCRw,t_RCRd,
t_NEGb,t_NEGw,t_NEGd,
t_CF,t_ZF,
t_DSHLw,t_DSHLd,
t_DSHRw,t_DSHRd,
t_MUL,t_DIV,
t_NOTDONE,
t_LASTFLAG
};