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Remove the old slow_16 core

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1375
This commit is contained in:
Sjoerd van der Berg 2003-10-26 17:44:35 +00:00
parent 23bbc96f4d
commit 8c832a4a81
2 changed files with 1 additions and 126 deletions
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2
src/cpu/Makefile.am
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@ -2,5 +2,5 @@ SUBDIRS = core_16 core_full core_normal
AM_CPPFLAGS = -I$(top_srcdir)/include
noinst_LIBRARIES = libcpu.a
libcpu_a_SOURCES = callback.cpp cpu.cpp flags.cpp modrm.cpp modrm.h slow_16.cpp core_full.cpp instructions.h \
libcpu_a_SOURCES = callback.cpp cpu.cpp flags.cpp modrm.cpp modrm.h core_full.cpp instructions.h \
paging.cpp lazyflags.h core_normal.cpp

125
src/cpu/slow_16.cpp
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@ -1,125 +0,0 @@
/*
* 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.
*/
#include "dosbox.h"
#include "mem.h"
#include "cpu.h"
#include "lazyflags.h"
#include "inout.h"
#include "callback.h"
#include "pic.h"
#include "fpu.h"
#if C_DEBUG
#include "debug.h"
#endif
typedef PhysPt EAPoint;
#define SegBase(c) SegPhys(c)
#define LoadMb(off) mem_readb(off)
#define LoadMw(off) mem_readw(off)
#define LoadMd(off) mem_readd(off)
#define LoadMbs(off) (Bit8s)(LoadMb(off))
#define LoadMws(off) (Bit16s)(LoadMw(off))
#define LoadMds(off) (Bit32s)(LoadMd(off))
#define SaveMb(off,val) mem_writeb(off,val)
#define SaveMw(off,val) mem_writew(off,val)
#define SaveMd(off,val) mem_writed(off,val)
#define LoadRb(reg) reg
#define LoadRw(reg) reg
#define LoadRd(reg) reg
#define SaveRb(reg,val) reg=val
#define SaveRw(reg,val) reg=val
#define SaveRd(reg,val) reg=val
extern Bitu cycle_count;
/* Enable parts of the cpu emulation */
#define CPU_386 //Enable 386 instructions
#define CPU_PREFIX_67 //Enable the 0x67 prefix
#define CPU_PIC_CHECK //Check for IRQ's on critical moment
#if C_FPU
#define CPU_FPU //Enable FPU escape instructions
#endif
static struct {
Bitu prefixes;
PhysPt segbase;
PhysPt ip_lookup;
PhysPt ip_start;
}core_16 ;
#include "instructions.h"
#include "core_16/support.h"
static Bits CPU_Real_16_Slow_Decode_Trap(void);
static Bits CPU_Real_16_Slow_Decode(void) {
decode_start:
LOADIP;
flags.type=t_UNKNOWN;
while (CPU_Cycles>0) {
#if C_DEBUG
cycle_count++;
#if C_HEAVY_DEBUG
LEAVECORE;
if (DEBUG_HeavyIsBreakpoint()) return debugCallback;
#endif
#endif
core_16.ip_start=core_16.ip_lookup;
core_16.prefixes=0;
lookupEATable=EAPrefixTable[0];
#include "core_16/main.h"
CPU_Cycles--;
}
decode_end:
LEAVECORE;
return CBRET_NONE;
}
static Bits CPU_Real_16_Slow_Decode_Trap(void) {
Bits oldCycles = CPU_Cycles;
CPU_Cycles = 1;
Bits ret=CPU_Real_16_Slow_Decode();
// LOG_DEBUG("TRAP: Trap Flag executed");
Interrupt(1);
CPU_Cycles = oldCycles-1;
cpudecoder = &CPU_Real_16_Slow_Decode;
return ret;
}
void CPU_Real_16_Slow_Start(bool big) {
if (big) E_Exit("Core 16 only runs 16-bit code");
cpudecoder=&CPU_Real_16_Slow_Decode;
EAPrefixTable[2]=&GetEA_32_n;
EAPrefixTable[3]=&GetEA_32_s;
EAPrefixTable[0]=&GetEA_16_n;
EAPrefixTable[1]=&GetEA_16_s;
};