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Got RAM usage down slightly further by merging in mode code from VARCem;

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Fixed the mouse.
This commit is contained in:
OBattler
2018-03-19 08:01:13 +01:00
parent 473fd383d2
commit 7d070e2930
21 changed files with 2321 additions and 1993 deletions
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40
src/cpu/808x.c
View File

@@ -1,10 +1,10 @@
/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
* VARCem Virtual ARchaeological Computer EMulator.
* An emulator of (mostly) x86-based PC systems and devices,
* using the ISA,EISA,VLB,MCA and PCI system buses, roughly
* spanning the era between 1981 and 1995.
*
* This file is part of the 86Box distribution.
* This file is part of the VARCem Project.
*
* 808x CPU emulation.
*
@@ -18,13 +18,31 @@
* 2 clocks - fetch opcode 1 2 clocks - execute
* 2 clocks - fetch opcode 2 etc
*
* Version: @(#)808x.c 1.0.10 2017/12/03
* Version: @(#)808x.c 1.0.2 2018/03/09
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Authors: Sarah Walker, <tommowalker@tommowalker.co.uk>
* Miran Grca, <mgrca8@gmail.com>
*
* Copyright 2008-2017 Sarah Walker.
* Copyright 2016,2017 Miran Grca.
* Copyright 2008-2018 Sarah Walker.
* Copyright 2016-2018 Miran Grca.
*
* 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
* 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 <stdio.h>
#include <stdint.h>
@@ -1212,7 +1230,7 @@ void execx86(int cycs)
break;
case 0x14: /*ADC AL,#8*/
tempw=FETCH();
setadc8(AL,tempw);
setadc8(AL,tempw & 0xff);
AL+=tempw+tempc;
cycles-=4;
break;
@@ -2950,7 +2968,7 @@ void execx86(int cycs)
if (temp)
{
tempw2=tempw%temp;
AH=tempw2;
AH=tempw2 & 0xff;
tempw/=temp;
AL=tempw&0xFF;
}

38
src/cpu/codegen.h
View File

@@ -1,3 +1,39 @@
/*
* VARCem Virtual ARchaeological Computer EMulator.
* An emulator of (mostly) x86-based PC systems and devices,
* using the ISA,EISA,VLB,MCA and PCI system buses, roughly
* spanning the era between 1981 and 1995.
*
* This file is part of the VARCem Project.
*
* Definitions for the code generator.
*
* Version: @(#)codegen.h 1.0.2 2018/03/14
*
* Authors: Sarah Walker, <tommowalker@tommowalker.co.uk>
* Miran Grca, <mgrca8@gmail.com>
*
* Copyright 2008-2018 Sarah Walker.
* Copyright 2016-2018 Miran Grca.
*
* 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
* 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.
*/
#ifndef _CODEGEN_H_
#define _CODEGEN_H_
@@ -267,7 +303,7 @@ void codegen_generate_call(uint8_t opcode, OpFn op, uint32_t fetchdat, uint32_t
void codegen_generate_seg_restore();
void codegen_set_op32();
void codegen_flush();
void codegen_check_flush(struct page_t *page, uint64_t mask, uint32_t phys_addr);
void codegen_check_flush(page_t *page, uint64_t mask, uint32_t phys_addr);
extern int cpu_block_end;
extern uint32_t codegen_endpc;