From c9aa6dc3a9b353685537beea97b31affbf35fcd8 Mon Sep 17 00:00:00 2001
From: TomW <TomW@localhost>
Date: Sun, 7 Jul 2013 13:26:46 +0100
Subject: [PATCH] Removed obsolete INT 13 hard disk emulation.

---
 src/Makefile.mingw |   2 +-
 src/harddisk.c     | 155 ---------------------------------------------
 src/pc.c           |   1 -
 3 files changed, 1 insertion(+), 157 deletions(-)
 delete mode 100644 src/harddisk.c

diff --git a/src/Makefile.mingw b/src/Makefile.mingw
index 8015b65..4e39d18 100644
--- a/src/Makefile.mingw
+++ b/src/Makefile.mingw
@@ -4,7 +4,7 @@ CC   = gcc.exe
 WINDRES = windres.exe
 CFLAGS = -O3 -march=i686 -fomit-frame-pointer
 OBJ = 386.o 808x.o acer386sx.o ali1429.o amstrad.o cdrom-ioctl.o \
-	config.o cpu.o dac.o device.o dma.o ega.o fdc.o harddisk.o \
+	config.o cpu.o dac.o device.o dma.o ega.o fdc.o \
 	headland.o i430vx.o ide.o io.o jim.o keyboard.o keyboard_amstrad.o keyboard_at.o \
 	keyboard_olim24.o keyboard_xt.o lpt.o mcr.o mem.o model.o \
 	mouse.o mouse_ps2.o mouse_serial.o neat.o nvr.o olivetti_m24.o \
diff --git a/src/harddisk.c b/src/harddisk.c
deleted file mode 100644
index cef4b0d..0000000
--- a/src/harddisk.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*Due to the lack of a real hard disc BIOS (other than the WD ST-506 one in MESS),
-  I wrote this. It's better as it can handle bigger discs, but is (potentially)
-  less compatible.*/
-#include <stdio.h>
-#include <string.h>
-#include "ibm.h"
-
-extern int output;
-void inithdc()
-{
-        return;
-        hdc[0].f=romfopen("hdc.img","rb+");
-        if (!hdc[0].f)
-        {
-                hdc[0].f=romfopen("hdc.img","wb");
-                putc(0,hdc[0].f);
-                fclose(hdc[0].f);
-                hdc[0].f=romfopen("hdc.img","rb+");
-        }
-//        hdc[0].spt=16;
-//        hdc[0].hpc=5;
-//        hdc[0].tracks=977;
-
-        hdc[1].f=romfopen("hdd.img","rb+");
-        if (!hdc[1].f)
-        {
-                hdc[1].f=romfopen("hdd.img","wb");
-                putc(0,hdc[1].f);
-                fclose(hdc[1].f);
-                hdc[1].f=romfopen("hdd.img","rb+");
-        }
-//        hdc[1].spt=32;
-//        hdc[1].hpc=16;
-//        hdc[1].tracks=447;
-}
-
-void int13hdc()
-{
-        int drv=DL&1;
-        int track,head,sector;
-        uint32_t addr;
-        int c,d;
-        uint8_t buf[512];
-        fullspeed();
-//        ram[0x475]=2;
-//        printf("INT 13 HDC %04X %04X %04X %04X  %04X:%04X\n",AX,BX,CX,DX,CS,pc);
-        switch (AH)
-        {
-                case 0: /*Reset disk system*/
-                AH=0;
-                flags&=~C_FLAG;
-                break;
-                case 2: /*Read sectors into memory*/
-//                printf("Read %i sectors to %04X:%04X\n",AL,es>>4,BX);
-//                if (es==0xf940) output=3;
-                track=CH|((CL&0xC0)<<2);
-                sector=(CL&63)-1;
-                head=DH;
-                addr=((((track*hdc[drv].hpc)+head)*hdc[drv].spt)+sector)*512;
-//                printf("Read track %i head %i sector %i addr %08X  HPC %i SPT %i %08X\n",track,head,sector,addr,hdc[drv].hpc,hdc[drv].spt,old8);
-                fseek(hdc[drv].f,addr,SEEK_SET);
-                for (c=0;c<AL;c++)
-                {
-                        fread(buf,512,1,hdc[drv].f);
-                        for (d=0;d<512;d++)
-                        {
-                                writemembl(es+BX+(c*512)+d,buf[d]/*getc(hdc[drv].f)*/);
-                        }
-                }
-                AH=0;
-                flags&=~C_FLAG;
-                readflash=1;
-                break;
-                case 3: /*Write sectors*/
-                track=CH|((CL&0xC0)<<2);
-                sector=(CL&63)-1;
-                head=DH;
-                addr=((((track*hdc[drv].hpc)+head)*hdc[drv].spt)+sector)*512;
-                fseek(hdc[drv].f,addr,SEEK_SET);
-                for (c=0;c<AL;c++)
-                {
-                        for (d=0;d<512;d++)
-                        {
-                                putc(readmembl(es+BX+(c*512)+d),hdc[drv].f);
-                        }
-                }
-                AH=0;
-                flags&=~C_FLAG;
-                readflash=1;
-                break;
-                case 4: /*Verify sectors*/
-                AH=0; /*We don't actually do anything here*/
-                flags&=~C_FLAG;
-                break;
-                case 8: /*Get drive parameters*/
-                AH=0;
-                CH=hdc[drv].tracks&255;
-                CL=hdc[drv].spt;
-                CL|=((hdc[drv].tracks>>2)&0xC0);
-//                printf("Drive params - %02X %02X %i %i\n",CL,CH,hdc[drv].tracks,hdc[drv].spt);
-                DH=hdc[drv].hpc-1;
-                DL=2;
-                flags&=~C_FLAG;
-                break;
-                case 0x10: /*Check drive ready*/
-                AH=0;
-                flags&=~C_FLAG;
-                break;
-                case 0x18: /*Set media type*/
-                AH=1;
-                flags|=C_FLAG;
-                break;
-                
-                default:
-                        AH=1;
-                        flags|=C_FLAG;
-//                printf("Bad HDC int 13 %04X\n",AX);
-//                dumpregs();
-//                exit(-1);
-        }
-}
-
-char tempbuf[512*63];
-void resizedrive(int drv)
-{
-        FILE *f;
-        int c,d,e;
-//        char temp[512*63];
-        if (!drv)
-        {
-                fflush(hdc[0].f);
-                if (hdc[0].f) fclose(hdc[0].f);
-                f=romfopen("hdc.img","wb");
-        }
-        else
-        {
-                fflush(hdc[1].f);
-                if (hdc[1].f) fclose(hdc[1].f);
-                f=romfopen("hdd.img","wb");
-        }
-        memset(tempbuf,0,512*63);
-        for (c=0;c<hdc[drv].tracks;c++)
-        {
-                for (d=0;d<hdc[drv].hpc;d++)
-                {
-//                        for (e=0;e<hdc[drv].spt;e++)
-//                        {
-                                fwrite(tempbuf,512*hdc[drv].spt,1,f);
-//                        }
-                }
-        }
-        fclose(f);
-        if (!drv) hdc[0].f=romfopen("hdc.img","rb+");
-        else      hdc[1].f=romfopen("hdd.img","rb+");
-}
diff --git a/src/pc.c b/src/pc.c
index 398efeb..62b1a3e 100644
--- a/src/pc.c
+++ b/src/pc.c
@@ -220,7 +220,6 @@ void initpc()
         //loadfont();
         loadnvr();
         sound_init();
-        inithdc();
         resetide();
         ioctl_open(cdrom_drive);
         model_init();