[src/trunk]: src/sys/arch/powerpc/powerpc Print negative SIMM operands correc...

[jhawk <jhawk%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8a751dfae063
branches:  trunk
changeset: 520248:8a751dfae063
user:      jhawk <jhawk%NetBSD.org@localhost>
date:      Sat Jan 05 22:07:26 2002 +0000

description:
Print negative SIMM operands correctly; previously, negative numbers
were bogus.

diffstat:

 sys/arch/powerpc/powerpc/db_disasm.c |  9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r 479c2e6be4e0 -r 8a751dfae063 sys/arch/powerpc/powerpc/db_disasm.c
--- a/sys/arch/powerpc/powerpc/db_disasm.c      Sat Jan 05 20:55:16 2002 +0000
+++ b/sys/arch/powerpc/powerpc/db_disasm.c      Sat Jan 05 22:07:26 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: db_disasm.c,v 1.11 2002/01/05 20:22:52 jhawk Exp $     */
+/*     $NetBSD: db_disasm.c,v 1.12 2002/01/05 22:07:26 jhawk Exp $     */
 /*     $OpenBSD: db_disasm.c,v 1.2 1996/12/28 06:21:48 rahnds Exp $    */
 
 #include <sys/param.h>
@@ -725,13 +725,16 @@
                IMM = extract_field(instr, 31 - 31, 16);
                if (IMM & 0x8000) {
                        pstr += sprintf(pstr, "-");
+                       IMM = 0x10000-IMM;
                }
-                       /* no break */
                func &= ~Op_SIMM;
+               goto common;
        case Op_UIMM:
                IMM = extract_field(instr, 31 - 31, 16);
+               func &= ~Op_UIMM;
+               goto common;
+       common:
                pstr += sprintf(pstr, "0x%x", IMM);
-               func &= ~Op_UIMM;
                break;
        default:
        }