forked from len0rd/rockbox
sdl: Remove platform-specific code
Also nuke the Makefiles of Duke Nukem 3D (pun intended). Change-Id: If2707cf079bfb9299347f9c5f980780134b6ecda
This commit is contained in:
Vencislav Atanasov
parent
e19857e712
commit
183e45e8d0
49 changed files with 53 additions and 2191 deletions
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@ -46,39 +46,9 @@ long crctable[256];
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//COM ONLY variables
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long comnum, comvect, comspeed, comtemp, comi, comescape, comreset;
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#ifdef PLATFORM_DOS // !!! this is a real mess. --ryan.
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static void interrupt far comhandler(void);
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static unsigned short orig_pm_sel, orig_rm_seg, orig_rm_off;
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static unsigned long orig_pm_off;
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#endif
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volatile unsigned char *inbuf, *outbuf, *comerror, *incnt, *comtype;
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volatile unsigned char *comresend;
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volatile short *inbufplc, *inbufend, *outbufplc, *outbufend, *comport;
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#ifdef PLATFORM_DOS // !!! this is a real mess. --ryan.
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static char rmbuffer[COMCODEBYTES] = //See realcom.asm
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{
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x50,0x53,0x66,0x51,0x52,0x2e,
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0x8b,0x16,0x08,0x00,0x83,0xc2,0x02,0xec,0x24,0x07,
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0x8a,0xe0,0x80,0xfc,0x02,0x74,0x08,0x80,0xfc,0x04,
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0x74,0x62,0xe9,0x89,0x00,0x2e,0x8b,0x16,0x08,0x00,
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0x2e,0x8a,0x0e,0x0a,0x00,0x80,0xe9,0x01,0x78,0x7a,
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0x2e,0x80,0x3e,0x0c,0x00,0x01,0x7c,0x10,0x74,0x04,
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0xb0,0x83,0xeb,0x02,0xb0,0x8f,0xee,0x2e,0xfe,0x0e,
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0x0c,0x00,0xeb,0xe3,0x2e,0x80,0x3e,0x0b,0x00,0x01,
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0x7c,0x12,0x74,0x04,0xb0,0x83,0xeb,0x04,0x2e,0xa0,
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0x0d,0x00,0xee,0x2e,0xfe,0x0e,0x0b,0x00,0xeb,0xc9,
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0x2e,0x8b,0x1e,0x04,0x00,0x2e,0x3b,0x1e,0x06,0x00,
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0x74,0x3c,0x2e,0x8a,0x87,0x80,0x41,0xee,0x43,0x81,
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0xe3,0xff,0x3f,0x2e,0x89,0x1e,0x04,0x00,0xeb,0xab,
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0x2e,0x8b,0x16,0x08,0x00,0xec,0x2e,0x8b,0x1e,0x02,
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0x00,0x2e,0x88,0x87,0x80,0x01,0x43,0x81,0xe3,0xff,
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0x3f,0x2e,0x89,0x1e,0x02,0x00,0x2e,0x80,0x3e,0x0a,
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0x00,0x10,0x75,0x08,0x83,0xc2,0x05,0xec,0xa8,0x01,
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0x75,0xd6,0xf6,0xc4,0x01,0x0f,0x84,0x56,0xff,0xb0,
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0x20,0xe6,0x20,0x5a,0x66,0x59,0x5b,0x58,0xcf,
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};
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#endif
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//NET ONLY variables
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short socket = 0x4949;
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@ -106,80 +76,17 @@ static char rmnetbuffer[NETCODEBYTES] =
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};
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static long my7a = 0;
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#ifdef PLATFORM_DOS
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#pragma aux koutp =\
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"out dx, al",\
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parm [edx][eax]\
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#pragma aux kinp =\
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"in al, dx",\
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parm [edx]
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#endif
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long convalloc32 (long size)
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{
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#ifdef PLATFORM_DOS
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union REGS r;
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r.x.eax = 0x0100; //DPMI allocate DOS memory
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r.x.ebx = ((size+15)>>4); //Number of paragraphs requested
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int386(0x31,&r,&r);
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if (r.x.cflag != 0) return ((long)0); //Failed
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return ((long)((r.x.eax&0xffff)<<4)); //Returns full 32-bit offset
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#else
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fprintf (stderr, "%s, line %d; convalloc32() called\n", __FILE__,
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__LINE__);
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return 0;
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#endif
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}
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#ifdef PLATFORM_DOS
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#pragma aux fixregistersaftersimulate =\
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"cld",\
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"push ds",\
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"pop es",\
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static struct rminfo
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{
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long EDI, ESI, EBP, ESP, EBX, EDX, ECX, EAX;
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short flags, ES, DS, FS, GS, IP, CS, SP, SS;
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} RMI;
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#endif
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long simulateint(char intnum, long daeax, long daebx, long daecx, long daedx, long daesi, long daedi)
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{
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#ifdef PLATFORM_DOS
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union REGS regs;
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struct SREGS sregs;
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memset(&RMI,0,sizeof(RMI)); // Set up real-mode call structure
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memset(&sregs,0,sizeof(sregs));
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RMI.EAX = daeax;
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RMI.EBX = daebx;
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RMI.ECX = daecx;
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RMI.EDX = daedx;
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RMI.ESI = daesi-rmoffset32;
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RMI.EDI = daedi-rmoffset32;
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RMI.DS = rmsegment16;
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RMI.ES = rmsegment16;
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regs.w.ax = 0x0300; // Use DMPI call 300h to issue the DOS interrupt
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regs.h.bl = intnum;
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regs.h.bh = 0;
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regs.w.cx = 0;
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sregs.es = FP_SEG(&RMI);
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regs.x.edi = FP_OFF(&RMI);
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int386x(0x31,®s,®s,&sregs);
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fixregistersaftersimulate();
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return(RMI.EAX);
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#else
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fprintf(stderr, "%s line %d; simulateint() called\n",__FILE__,__LINE__);
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return 0;
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#endif
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}
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void initmultiplayers(char damultioption, char dacomrateoption, char dapriority)
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@ -237,22 +144,6 @@ int neton(void)
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long i, j;
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if ((simulateint(0x2f,(long)0x7a00,0L,0L,0L,0L,0L)&255) != 255) return(-1);
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if (*(long *)(0x7a<<2) == 0)
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{
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#ifdef PLATFORM_DOS
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printf("Faking int 0x7a to call IPX entry at: %4x:%4x\n",RMI.ES,RMI.EDI&65535);
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my7a = convalloc32(16L);
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*(short *)((0x7a<<2)+0) = (my7a&15);
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*(short *)((0x7a<<2)+2) = (my7a>>4);
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*(char *)(my7a+0) = 0x2e; //call far ptr [L1]
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*(char *)(my7a+1) = 0x9a;
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*(long *)(my7a+2) = 7L;
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*(char *)(my7a+6) = 0xcf; //iret
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*(short *)(my7a+7) = (RMI.EDI&65535); //L1: ipxoff
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*(short *)(my7a+9) = RMI.ES; // ipxseg
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#endif
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}
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//Special stuff for WATCOM C
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if ((rmoffset32 = convalloc32(1380L+NETCODEBYTES+COMBUFSIZ)) == 0)
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@ -349,9 +240,6 @@ int comon()
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// Baud-Setting,?,?,Parity O/E,Parity Off/On, Stop-1/2,Bits-5/6/7/8
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// 0x0b is odd parity,1 stop bit, 8 bits
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#ifdef PLATFORM_DOS
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_disable();
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#endif
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koutp((*comport)+3,0x80); //enable latch registers
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divisor = 115200 / comspeed;
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koutp((*comport)+0,divisor&255); //# = 115200 / bps
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@ -384,9 +272,6 @@ int comon()
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comescape = 0; comreset = 0;
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*comerror = 0; *comresend = 0;
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#ifdef PLATFORM_DOS
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_enable();
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#endif
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syncbufleng = 0;
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@ -410,18 +295,12 @@ void comoff()
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i--;
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}
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#ifdef PLATFORM_DOS
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_disable();
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#endif
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koutp(0x21,kinp(0x21)|(1<<(comvect&7))); //Mask vector
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if (hangup != 0)
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{
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koutp((*comport)+1,0);
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koutp((*comport)+4,0);
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}
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#ifdef PLATFORM_DOS
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_enable();
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#endif
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uninstallbicomhandlers();
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}
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@ -921,87 +800,14 @@ long getcrc(char *buffer, short bufleng)
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void installbicomhandlers(void)
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{
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#ifdef PLATFORM_DOS
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union REGS r;
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struct SREGS sr;
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long lowp;
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void far *fh;
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//Get old protected mode handler
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r.x.eax = 0x3500+comvect; /* DOS get vector (INT 0Ch) */
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sr.ds = sr.es = 0;
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int386x(0x21,&r,&r,&sr);
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orig_pm_sel = (unsigned short)sr.es;
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orig_pm_off = r.x.ebx;
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//Get old real mode handler
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r.x.eax = 0x0200; /* DPMI get real mode vector */
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r.h.bl = comvect;
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int386(0x31,&r,&r);
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orig_rm_seg = (unsigned short)r.x.ecx;
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orig_rm_off = (unsigned short)r.x.edx;
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//Allocate memory in low memory to store real mode handler
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if ((lowp = convalloc32(COMCODEBYTES+(COMBUFSIZ<<1))) == 0)
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{ printf("Can't allocate conventional memory.\n"); exit; }
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inbufplc = (short *)(lowp+0);
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inbufend = (short *)(lowp+2);
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outbufplc = (short *)(lowp+4);
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outbufend = (short *)(lowp+6);
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comport = (short *)(lowp+8);
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comtype = (char *)(lowp+10);
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comerror = (char *)(lowp+11);
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comresend = (char *)(lowp+12);
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incnt = (char *)(lowp+13);
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inbuf = (char *)(lowp+COMCODEBYTES);
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outbuf = (char *)(lowp+COMCODEBYTES+COMBUFSIZ);
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memcpy((void *)lowp,(void *)rmbuffer,COMCODEBYTES);
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//Set new protected mode handler
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r.x.eax = 0x2500+comvect; /* DOS set vector (INT 0Ch) */
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fh = (void far *)comhandler;
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r.x.edx = FP_OFF(fh);
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sr.ds = FP_SEG(fh); //DS:EDX == &handler
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sr.es = 0;
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int386x(0x21,&r,&r,&sr);
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//Set new real mode handler (must be after setting protected mode)
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r.x.eax = 0x0201;
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r.h.bl = comvect; //CX:DX == real mode &handler
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r.x.ecx = ((lowp>>4)&0xffff); //D32realseg
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r.x.edx = COMCODEOFFS; //D32realoff
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int386(0x31,&r,&r);
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#else
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fprintf (stderr,"%s, line %d; installbicomhandlers() called\n",
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__FILE__, __LINE__);
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#endif
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}
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void uninstallbicomhandlers(void)
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{
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#ifdef PLATFORM_DOS
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union REGS r;
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struct SREGS sr;
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//restore old protected mode handler
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r.x.eax = 0x2500+comvect; /* DOS set vector (INT 0Ch) */
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r.x.edx = orig_pm_off;
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sr.ds = orig_pm_sel; /* DS:EDX == &handler */
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sr.es = 0;
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int386x(0x21,&r,&r,&sr);
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//restore old real mode handler
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r.x.eax = 0x0201; /* DPMI set real mode vector */
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r.h.bl = comvect;
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r.x.ecx = (unsigned long)orig_rm_seg; //CX:DX == real mode &handler
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r.x.edx = (unsigned long)orig_rm_off;
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int386(0x31,&r,&r);
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#else
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fprintf (stderr, "%s line %d; uninstallbicomhandlers() called\n",
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__FILE__, __LINE__);
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#endif
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}
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void processreservedmessage(short tempbufleng, char *datempbuf)
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