Message-ID: <36A06C1E.C5DE5F2D@gmx.net>
Date: Sat, 16 Jan 1999 09:38:22 -0100
From: Robert Hoehne <robert DOT hoehne AT gmx DOT net>
Organization: none provided
X-Mailer: Mozilla 4.07 [de] (Win95; I)
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To: djgpp-workers <djgpp-workers AT delorie DOT com>
Subject: Patch for debug.c
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Reply-To: djgpp-workers AT delorie DOT com

After starting the discussion about the possible
problems with edebug32 and FPU-less systems, I
found, that also edebug32 had code to save/restore
to FPU state. So to use the patch I sent some time
ago about the FPU saving for dbgcom.c, the related
code in edebug32 needs to be removed. Here is now
the pathch for it.

--- src/debug/edebug/debug.c~	Mon Sep  7 18:01:28 1998
+++ src/debug/edebug/debug.c	Sat Jan 16 09:32:20 1999
@@ -24,59 +24,11 @@
 #include "unassmbl.h"
 #include <debug/syms.h>
 
-typedef struct {
-  word16 sig0;
-  word16 sig1;
-  word16 sig2;
-  word16 sig3;
-  word16 exponent:15;
-  word16 sign:1;
-} NPXREG;
-
-typedef struct {
-  word32 control;
-  word32 status;
-  word32 tag;
-  word32 eip;
-  word32 cs;
-  word32 dataptr;
-  word32 datasel;
-  NPXREG reg[8];
-} NPX;
-
 static char char32spc[] = "xxxúxxxúxxxúxxxùxxxúxxxúxxxúxxx ";
 
 static char flset[] = "VMRF  NT    OFDNIETFMIZR  AC  PE  CY";
 static char floff[] = "              UPID  PLNZ      PO  NC";
 static char fluse[] = {1,1,0,1,0,0,1,1,1,1,1,1,0,1,0,1,0,1};
-static NPX npx;
-
-static void save_npx(void)
-{
-asm(								       "\n\
-	inb	$0xa0,%al						\n\
-	testb	$0x20,%al						\n\
-	jz	1f							\n\
-	xorl	%eax,%eax						\n\
-	outb	%al,$0xf0						\n\
-	movb	$0x20,%al						\n\
-	outb	%al,$0xa0						\n\
-	outb	%al,$0x20						\n\
-1:									\n\
-	movl	$_npx, %eax						\n\
-	fnsave	(%eax)							\n\
-	fwait								"
-);
-}
-
-static void load_npx(void)
-{
-asm(								       "\n\
-	movl	$_npx, %eax						\n\
-	movb	$0,4(%eax)						\n\
-	frstor	(%eax)							"
-);
-}
 
 static void tssprint(TSS *t)
 {