Remove doscmd from the base system now that it lives in the ports tree.

1 files changed, 0 insertions, 635 deletions

diff --git a/usr.bin/doscmd/trap.c b/usr.bin/doscmd/trap.c
deleted file mode 100644
index 02e9437..0000000
--- a/usr.bin/doscmd/trap.c
+++ /dev/null
@@ -1,635 +0,0 @@
-/*
- * Copyright (c) 1992, 1993, 1996
- *	Berkeley Software Design, Inc.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by Berkeley Software
- *	Design, Inc.
- *
- * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	BSDI trap.c,v 2.3 1996/04/08 19:33:08 bostic Exp
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <machine/trap.h>
-
-#include "doscmd.h"
-#include "trap.h"
-#include "tty.h"
-#include "video.h"
-
-/* 
-** When the emulator is very busy, it's often common for
-** SIGALRM to be missed, leading to missed screen updates.
-**
-** We update this counter every time a DOS interrupt is processed and
-** if it hits a certain threshold, force an update.
-**
-** When updates occur, the counter is zeroed.
-*/
-static int	update_counter = 0;
-#define		BUSY_UPDATES	2000
-
-/*
-** handle interrupts passed to us by the kernel
-*/
-void
-fake_int(regcontext_t *REGS, int intnum)
-{
-    if (R_CS == 0xF000 || (ivec[intnum] >> 16) == 0xF000) {
-	if (R_CS != 0xF000)
-	    intnum = ((u_char *)VECPTR(ivec[intnum]))[1];
-	debug(D_ITRAPS | intnum, "INT %02x:%02x %04x:%04x/%08lx\n",
-	      intnum, R_AH, R_CS, R_IP, ivec[intnum]);
-	switch (intnum) {
-	case 0x2f: 			/* multiplex interrupt */
-	    int2f((regcontext_t *)&REGS->sc); 
-	    break;
-	case 0xff: 			/* doscmd special */
-	    emuint(REGS); 
-	    break;
-	default:			/* should not get here */
-	    if (vflag) dump_regs(REGS);
-	    fatal("no interrupt set up for 0x%02x\n", intnum);
-	}
-	return;
-    }
-
-    /* user_int: */
-    debug(D_TRAPS | intnum,
-	  "INT %02x:%02x [%04lx:%04lx] %04x %04x %04x %04x from %04x:%04x\n",
-	  intnum, R_AH, ivec[intnum] >> 16, ivec[intnum] & 0xffff,
-	  R_AX, R_BX, R_CX, R_DX, R_CS, R_IP);
-
-#if 0
-    if ((intnum == 0x13) && (*(u_char *)VECPTR(ivec[intnum]) != 0xf4)) {
-#if 1
-        char *addr; /*= (char *)VECPTR(ivec[intnum]);*/
-        int i, l, j;
-        char buf[100];
-
-        R_CS = 0x2c7; 
-        R_IP = 0x14f9;
-        addr = (char *)MAKEPTR(R_CS, R_IP);
-
-        printf("\n");
-        for (i = 0; i < 100; i++) {
-            l = i386dis(R_CS, R_IP, addr, buf, 0);
-            printf("%04x:%04x  %s\t;",R_CS,R_IP,buf);
-            for (j = 0; j < l; j++)
-                printf(" %02x", (u_char)addr[j]);
-            printf("\n");
-            R_IP += l;
-            addr += l;
-        }
-        exit (0);
-#else
-        tmode = 1;
-#endif
-    }
-#endif
-
-    if (intnum == 0)
-	dump_regs(REGS);
-
-    if (ivec[intnum] == 0) {		/* uninitialised interrupt? */
-	if (vflag) dump_regs(REGS);
-	fatal("Call to uninitialised interrupt 0x%02x\n", intnum);
-    }
-
-    /*
-     * This is really ugly, but when DOS boots, it seems to loop
-     * for a while on INT 16:11 INT 21:3E INT 2A:82
-     * INT 21:3E is a close(), which seems like something one would
-     * not sit on for ever, so we will allow it to reset our POLL count.
-     */
-    if (intnum == 0x21 && R_AX == 0x3E)
-	reset_poll();
-
-    /* stack for and call the interrupt in vm86 space */
-    PUSH((R_FLAGS & ~PSL_I) | (R_EFLAGS & PSL_VIF ? PSL_I : 0), REGS);
-    PUSH(R_CS, REGS);
-    PUSH(R_IP, REGS);
-    R_EFLAGS &= ~PSL_VIF;		/* disable interrupts */
-    PUTVEC(R_CS, R_IP, ivec[intnum]);
-}
-
-/* make this read a little more intuitively */
-#define ipadvance(c,n)	SET16(c->sc_eip, GET16(c->sc_eip) + n)	/* move %ip along */
-
-#ifdef USE_VM86
-/* entry from NetBSD-style vm86 */
-void
-sigurg(struct sigframe *sf)
-{
-#define	sc	(&sf->sf_sc)
-    int intnum;
-    u_char *addr;
-    int rep;
-    int port;
-    callback_t func;
-
-#if 0
-    printf("ivec08 = %08x\n", ivec[0x08]);
-#endif
-
-    if (tmode)
-	resettrace(sc);
-
-    switch (VM86_TYPE(sf->sf_code)) {
-    case VM86_INTx:
-	intnum = VM86_ARG(sf->sf_code);
-	switch (intnum) {
-	case 0x2f:
-	    switch (GET8H(sc->sc_eax)) {
-	    case 0x11:
-		debug (D_TRAPS|0x2f, "INT 2F:%04x\n", GET16(sc->sc_eax));
-		if (int2f_11(sc)) {
-		    /* Skip over int 2f:11 */
-		    goto out;
-		}
-		break;
-	    case 0x43:
-		debug (D_TRAPS|0x2f, "INT 2F:%04x\n", GET16(sc->sc_eax));
-		if (int2f_43(sc)) {
-		    /* Skip over int 2f:43 */
-		    goto out;
-		}
-		break;
-	    }
-	    break;
-	}
-	fake_int(sc, intnum);
-	break;
-    case VM86_UNKNOWN:
-	/*XXXXX failed vector also gets here without IP adjust*/
-
-	addr = (u_char *)MAKEPTR(sc->sc_cs, sc->sc_eip);
-	rep = 1;
-
-	debug (D_TRAPS2, "%04x:%04x [%02x]", GET16(sc->sc_cs), 
-	    GET16(sc->sc_eip), addr[0]);
-	switch (addr[0]) {
-	case TRACETRAP:
-	    ipadvance(sc,1);
-	    fake_int(sc, 3);
-	    break;
-	case INd:
-	    port = addr[1];
-	    ipadvance(sc,2);
-	    inb(sc, port);
-	    break;
-	case OUTd:
-	    port = addr[1];
-	    ipadvance(sc,2);
-	    outb(sc, port);
-	    break;
-	case INdX:
-	    port = addr[1];
-	    ipadvance(sc,2);
-	    inx(sc, port);
-	    break;
-	case OUTdX:
-	    port = addr[1];
-	    ipadvance(sc,2);
-	    outx(sc, port);
-	    break;
-	case IN:
-	    ipadvance(sc,1);
-	    inb(sc, GET16(sc->sc_edx));
-	    break;
-	case INX:
-	    ipadvance(sc,1);
-	    inx(sc, GET16(sc->sc_edx));
-	    break;
-	case OUT:
-	    ipadvance(sc,1);
-	    outb(sc, GET16(sc->sc_edx));
-	    break;
-	case OUTX:
-	    ipadvance(sc,1);
-	    outx(sc, GET16(sc->sc_edx));
-	    break;
-	case OUTSB:
-	    ipadvance(sc,1);
-	    while (rep-- > 0)
-		outsb(sc, GET16(sc->sc_edx));
-	    break;
-	case OUTSW:
-	    ipadvance(sc,1);
-	    while (rep-- > 0)
-		outsx(sc, GET16(sc->sc_edx));
-	    break;
-	case INSB:
-	    ipadvance(sc,1);
-	    while (rep-- > 0)
-		insb(sc, GET16(sc->sc_edx));
-	    break;
-	case INSW:
-	    ipadvance(sc,1);
-	    while (rep-- > 0)
-		insx(sc, GET16(sc->sc_edx));
-	    break;
-	case LOCK:
-	    debug(D_TRAPS2, "lock\n");
-	    ipadvance(sc,1);
-	    break;
-	case HLT:	/* BIOS entry points populated with HLT */
-	    func = find_callback(GETVEC(sc->sc_cs, sc->sc_eip));
-	    if (func) {
-		ipadvance(sc,);
-		SET16(sc->sc_eip, GET16(sc->sc_eip) + 1);
-		func(sc);
-		break;
-	    }
-	default:
-	    dump_regs(sc);
-	    fatal("unsupported instruction\n");
-	}
-		break;
-	default:
-		dump_regs(sc);
-		printf("code = %04x\n", sf->sf_code);
-		fatal("unrecognized vm86 trap\n");
-	}
-
-out:
-    	if (tmode)
-		tracetrap(sc);
-#undef	sc
-#undef  ipadvance
-}
-
-#else /* USE_VM86 */
-
-/* entry from FreeBSD, BSD/OS vm86 */
-void
-sigbus(struct sigframe *sf)
-{
-    u_char		*addr;
-    int			tempflags,okflags;
-    int			intnum;
-    int			port;
-    callback_t		func;
-    regcontext_t	*REGS = (regcontext_t *)(&sf->sf_uc.uc_mcontext);
-
-    if (!(R_EFLAGS && PSL_VM))
-	fatal("SIGBUS in the emulator\n");
-
-    if ((int)sf->sf_siginfo != 0) {
-	switch (sf->sf_uc.uc_mcontext.mc_trapno) {
-	case T_PAGEFLT:
-	    debug(D_TRAPS2, "Page fault, trying to access 0x%x\n",
-		  sf->sf_addr);
-	    /* nothing but accesses to video memory can fault for now */
-	    if (vmem_pageflt(sf) == 0)
-		goto out;
-	    /* FALLTHROUGH */
-	default:
-	    dump_regs(REGS);
-	    fatal("SIGBUS code %d, trapno: %d, err: %d\n",
-		  (int)sf->sf_siginfo, sf->sf_uc.uc_mcontext.mc_trapno, 
-		  sf->sf_uc.uc_mcontext.mc_err);
-	    /* NOTREACHED */
-	}
-    }
-
-    addr = (u_char *)MAKEPTR(R_CS, R_IP);
-
-    if (tmode)
-	resettrace(REGS);
-
-    if ((R_EFLAGS & (PSL_VIP | PSL_VIF)) == (PSL_VIP | PSL_VIF)) {
-        resume_interrupt();
-        goto out;
-    }
-    
-/*    printf("%p\n", addr); fflush(stdout); */
-    debug (D_TRAPS2, "%04x:%04x [%02x %02x %02x] ", R_CS, R_IP, 
-        (int)addr[0], (int)addr[1], (int)addr[2]);
-#if 0
-    if ((int)addr[0] == 0x67) {
-        int i;
-        printf("HERE\n"); fflush(stdout);
-        printf("addr: %p\n", REGS); fflush(stdout);
-        for (i = 0; i < 21 * 4; i++) {
-            printf("%d: %x\n", i, ((u_char *)REGS)[i]);
-            fflush(stdout);
-        }
-        printf("Trapno, error: %p %p\n", REGS->sc.sc_trapno, REGS->sc.sc_err);
-        fflush(stdout);
-        dump_regs(REGS);
-    }
-#endif
-    
-        switch (addr[0]) {		/* what was that again dear? */
-
-        case CLI:
-	    debug (D_TRAPS2, "cli\n");
-	    R_IP++;
-            R_EFLAGS &= ~PSL_VIP;
-	    break;
-
-	case STI:
-	    debug (D_TRAPS2, "sti\n");
-	    R_IP++;
-            R_EFLAGS |= PSL_VIP;
-#if 0
-	    if (update_counter++ > BUSY_UPDATES)
-		sigalrm(sf);
-#endif
-	    break;
-	    
-	case PUSHF:
-	    debug (D_TRAPS2, "pushf <- 0x%lx\n", R_EFLAGS);
-	    R_IP++;
-            PUSH((R_FLAGS & ~PSL_I) | (R_EFLAGS & PSL_VIF ? PSL_I : 0), 
-		REGS);
-	    break;
-
-	case IRET:
-	    R_IP = POP(REGS);		/* get new cs:ip off the stack */
-	    R_CS = POP(REGS);
-	    debug (D_TRAPS2, "iret to %04x:%04x ", R_CS, R_IP);
-	    /* FALLTHROUGH */		/* 'safe' flag pop operation */
-
-	case POPF:
-/* XXX */
-	    fatal("popf/iret in emulator");
-
-	    if (addr[0] == POPF)
-		R_IP++;
-	    /* get flags from stack */
-	    tempflags = POP(REGS);
-	    /* flags we consider OK */
-	    okflags =  (PSL_ALLCC | PSL_T | PSL_D | PSL_V);
-	    /* keep state of non-OK flags */
-	    R_FLAGS = ((R_FLAGS & ~okflags) |
-		       /* pop state of OK flags */
-		       (tempflags & okflags));
-
-	    /* restore pseudo PSL_I flag */
-	    IntState = tempflags & PSL_I;
-	    debug(D_TRAPS2, "popf -> 0x%lx\n", R_EFLAGS);
-	    break;
-
-	case TRACETRAP:
-	    debug(D_TRAPS2, "ttrap\n");
-	    R_IP++;
-	    fake_int(REGS, 3);
-	    break;
-
-	case INTn:
-	    intnum = addr[1];
-	    R_IP += 2;			/* nobody else will do it for us */
-	    switch (intnum) {
-	    case 0x2f:
-		switch (R_AH) {		/* function number */
-		case 0x11:
-		    debug (D_TRAPS|0x2f, "INT 2F:%04x\n", R_AX);
-		    if (int2f_11(REGS)) {
-			/* Skip over int 2f:11 */
-			goto out;
-		    }
-		    break;
-		case 0x43:
-		    debug (D_TRAPS|0x2f, "INT 2F:%04x\n", R_AX);
-		    if (int2f_43(REGS)) {
-			/* Skip over int 2f:43 */
-			goto out;
-		    }
-		    break;
-		}
-		break;
-	    }
-	    fake_int(REGS, intnum);
-	    break;
-
-	case INd:		/* XXX implement in/out */
-	    R_IP += 2;
-	    port = addr[1];
-	    inb(REGS, port);
-	    break;
-	case IN:
-	    R_IP++;
-	    inb(REGS,R_DX);
-	    break;
-	case INX:
-	    R_IP++;
-	    inx(REGS,R_DX);
-	    break;
-	case INdX:
-	    R_IP += 2;
-	    port = addr[1];
-	    inx(REGS, port);
-	    break;
-	case INSB:
-	    R_IP++;
-	    printf("(missed) INSB <- 0x%02x\n",R_DX);
-	    break;
-	case INSW:
-	    R_IP++;
-	    printf("(missed) INSW <- 0x%02x\n",R_DX);
-	    break;
-
-	case OUTd:
-	    R_IP += 2;
-	    port = addr[1];
-	    outb(REGS, port);
-	    break;
-	case OUTdX:
-	    R_IP += 2;
-	    port = addr[1];
-	    outx(REGS, port);
-	    break;
-	case OUT:
-	    R_IP++;
-	    outb(REGS, R_DX);
-	    break;
-	case OUTX:
-	    R_IP++;
-	    outx(REGS, R_DX);
-	    break;	    
-	case OUTSB:
-	    R_IP++;
-	    printf("(missed) OUTSB -> 0x%02x\n",R_DX);
-	    break;	    
-	case OUTSW:
-	    R_IP++;
-	    printf("(missed) OUTSW -> 0x%02x\n",R_DX);
-/* tmode = 1; */
-	    break;
-
-	case LOCK:
-	    debug(D_TRAPS2, "lock\n");
-	    R_IP++;
-	    break;
-
-	case HLT:	/* BIOS entry points populated with HLT */
-	    func = find_callback(MAKEVEC(R_CS, R_IP));
-	    if (func) {
-		R_IP++;					/* pass HLT opcode */
-		func(REGS);
-/*		dump_regs(REGS); */
-#if 0
-		update_counter += 5;
-		if (update_counter > BUSY_UPDATES)
-		    sigalrm(sf);
-#endif
-		break;
-	    }
-/*            if (R_EFLAGS & PSL_VIF) { */
-                R_IP++;
-                tty_pause();
-                goto out;
-/*            } */
-            /* FALLTHROUGH */
-
-	default:
-	    dump_regs(REGS);
-	    fatal("unsupported instruction\n");
-	}
-
-out:
-    	if (tmode)
-	    tracetrap(REGS);	    
-}
-#endif /* USE_VM86 */
-
-void
-sigtrace(struct sigframe *sf)
-{
-    int			x;
-    regcontext_t	*REGS = (regcontext_t *)(&sf->sf_uc.uc_mcontext);
-
-    if (R_EFLAGS & PSL_VM) {
-	debug(D_ALWAYS, "Currently in DOS\n");
-	dump_regs(REGS);
-	for (x = 0; x < 16; ++x)
-	    debug(D_ALWAYS, " %02x", *(unsigned char *)x);
-	putc('\n', debugf);
-    } else {
-	debug(D_ALWAYS, "Currently in the emulator\n");
-	sigalrm(sf);
-    }
-}
-
-void
-sigtrap(struct sigframe *sf)
-{   
-    int			intnum;
-    int			trapno;
-    regcontext_t	*REGS = (regcontext_t *)(&sf->sf_uc.uc_mcontext);
-
-    if ((R_EFLAGS & PSL_VM) == 0) {
-	dump_regs(REGS);
-	fatal("%04x:%08x Sigtrap in protected mode\n", R_CS, R_IP);
-    }
-
-    if (tmode)
-	if (resettrace(REGS))
-	    goto doh;
-
-#ifdef __FreeBSD__
-    trapno = (int)sf->sf_siginfo;			/* XXX GROSTIC HACK ALERT */
-#else
-    trapno = sc->sc_trapno;
-#endif
-    if (trapno == T_BPTFLT)
-	intnum = 3;  
-    else
-	intnum = 1;
-
-    PUSH((R_FLAGS & ~PSL_I) | (R_EFLAGS & PSL_VIF ? PSL_I : 0), REGS);
-    PUSH(R_CS, REGS);
-    PUSH(R_IP, REGS);
-    R_FLAGS &= ~PSL_T;
-    PUTVEC(R_CS, R_IP, ivec[intnum]);
-
-doh:
-    if (tmode)
-	tracetrap(REGS);
-}
-
-void
-breakpoint(struct sigframe *sf)
-{
-    regcontext_t	*REGS = (regcontext_t *)(&sf->sf_uc.uc_mcontext);
-
-    if (R_EFLAGS & PSL_VM)
-	printf("doscmd ");
-    printf("breakpoint: %04x\n", *(u_short *)0x8e64);
-
-    __asm__ volatile("mov 0, %eax");
-    __asm__ volatile(".byte 0x0f");		/* MOV DR6,EAX */
-    __asm__ volatile(".byte 0x21");
-    __asm__ volatile(".byte 0x1b");
-}
-
-/*
-** periodic updates
-*/
-void
-sigalrm(struct sigframe *sf)
-{
-    regcontext_t	*REGS = (regcontext_t *)(&sf->sf_uc.uc_mcontext);
-
-    if (tmode)
-	resettrace(REGS);
-
-    update_counter = 0;			/* remember we've updated */
-    video_update((regcontext_t *)&REGS->sc);
-    hardint(0x00);
-
-    if (tmode)
-	tracetrap(REGS);
-}
-
-void
-sigill(struct sigframe *sf)
-{
-    regcontext_t	*REGS = (regcontext_t *)(&sf->sf_uc.uc_mcontext);
-
-    fprintf(stderr, "Signal %d from DOS program\n", sf->sf_signum);
-    dump_regs(REGS);
-    fatal("%04x:%04x Illegal instruction\n", R_CS, R_IP);
-
-}
-
-void
-sigfpe(struct sigframe *sf)
-{
-    regcontext_t	*REGS = (regcontext_t *)(&sf->sf_uc.uc_mcontext);
-
-    if (R_EFLAGS & PSL_VM) {
-	dump_regs(REGS);
-	debug(D_ALWAYS, "DOS program caused floating point fault\n");
-/*XXX Look into that !! */
-	fake_int(REGS, 0);	/* call handler XXX rather bogus, eh? */
-	return;
-    }
-    dump_regs(REGS);
-    fatal("%04x:%04x Floating point fault in emulator.\n", R_CS, R_IP);
-}