f6ef1f833c
Thoroughly clean up the code to vastly reduce the number of compiler warnings and found and fixed several bugs in the process; Applied all mainline PCem commits; Added SCSI hard disk emulation; Commented out all unfinished machines and graphics cards; Added the AOpen AP53 and ASUS P/I-P55T2 machines as well as another Tyan 440FX machine, all three with AMI WinBIOS (patch from TheCollector1995); Added the Diamond Stealth 3D 3000 (S3 ViRGE/VX) graphics card (patch from TheCollector1995); Added the PS/2 XT IDE (AccuLogic) HDD Controller (patch from TheCollector1995); Added Microsoft/Logitech Bus Mouse emulation (patch from waltje); Overhauled the makefiles (patch from waltje); Added the Adaptec AHA-1542CF SCSI controller (patch from waltje); Added preliminary (but still unfinished) Adaptec AHA-154x SCSI controller BIOS support (patch from waltje); Added an ISABugger debugging device (patch from waltje); Added sanity checks to the Direct3D code.
79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/* Copyright holders: Sarah Walker
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see COPYING for more details
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*/
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#include <stdio.h>
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#include <string.h>
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#include "ibm.h"
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#include "io.h"
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uint8_t europcdat[16];
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struct
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{
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uint8_t dat[16];
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int stat;
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int addr;
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} europc_rtc;
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void writejim(uint16_t addr, uint8_t val, void *p)
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{
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if ((addr&0xFF0)==0x250) europcdat[addr&0xF]=val;
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switch (addr)
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{
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case 0x25A:
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switch (europc_rtc.stat)
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{
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case 0:
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europc_rtc.addr=val&0xF;
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europc_rtc.stat++;
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break;
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case 1:
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europc_rtc.dat[europc_rtc.addr]=(europc_rtc.dat[europc_rtc.addr]&0xF)|(val<<4);
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europc_rtc.stat++;
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break;
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case 2:
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europc_rtc.dat[europc_rtc.addr]=(europc_rtc.dat[europc_rtc.addr]&0xF0)|(val&0xF);
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europc_rtc.stat=0;
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break;
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}
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break;
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}
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}
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uint8_t readjim(uint16_t addr, void *p)
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{
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switch (addr)
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{
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case 0x250: case 0x251: case 0x252: case 0x253: return 0;
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case 0x254: case 0x255: case 0x256: case 0x257: return europcdat[addr&0xF];
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case 0x25A:
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if (europc_rtc.stat==1)
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{
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europc_rtc.stat=2;
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return europc_rtc.dat[europc_rtc.addr]>>4;
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}
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if (europc_rtc.stat==2)
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{
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europc_rtc.stat=0;
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return europc_rtc.dat[europc_rtc.addr]&0xF;
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}
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return 0;
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}
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return 0;
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}
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void jim_init()
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{
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uint8_t viddat;
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memset(europc_rtc.dat,0,16);
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europc_rtc.dat[0xF]=1;
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europc_rtc.dat[3]=1;
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europc_rtc.dat[4]=1;
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europc_rtc.dat[5]=0x88;
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if (gfxcard==GFX_CGA || gfxcard == GFX_COLORPLUS) viddat=0x12;
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else if (gfxcard==GFX_MDA || gfxcard==GFX_HERCULES || gfxcard==GFX_INCOLOR) viddat=3;
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else viddat=0x10;
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europc_rtc.dat[0xB]=viddat;
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europc_rtc.dat[0xD]=viddat; /*Checksum*/
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io_sethandler(0x250, 0x10, readjim, NULL, NULL, writejim, NULL, NULL, NULL);
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}
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