Date: Tue, 30 Nov 1999 10:59:21 +0200 (WET) From: Andris Pavenis To: djgpp AT delorie DOT com Subject: Re: Problems with DJGPP lib and grx23 In-Reply-To: <81u3rb$90k@acp3bf.knirsch.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Reply-To: djgpp AT delorie DOT com X-Mailing-List: djgpp AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk As I already said I didn't met problems with _GR_shift_scanline() and gcc-2.95.X yet. For comparission I'm posting disassembler listing from my copy of libgrx20.a (for shiftscl.c only changes there are removal of %ecx from cloberlist). Timestamp of this library (September 30th) shows that it's almost sure I used gcc-2.95.1 there. Also compiled it with gcc-2.95.2 now and there is no difference. Andris shiftscl.o: file format coff-go32 Disassembly of section .text: 00000000 <__GR_shift_scanline>: 0: 83 ec 1c subl $0x1c,%esp 3: 55 pushl %ebp 4: 57 pushl %edi 5: 56 pushl %esi 6: 53 pushl %ebx 7: 8b 74 24 3c movl 0x3c(%esp,1),%esi b: 8b 54 24 40 movl 0x40(%esp,1),%edx f: 85 f6 testl %esi,%esi 11: 7f 6d jg 80 <__GR_shift_scanline+0x80> 13: f7 de negl %esi 15: 85 d2 testl %edx,%edx 17: 0f 8e b8 00 00 jle d5 <__GR_shift_scanline+0xd5> 1c: 00 1d: 89 54 24 14 movl %edx,0x14(%esp,1) 21: 8b 44 24 38 movl 0x38(%esp,1),%eax 25: 8b 54 24 34 movl 0x34(%esp,1),%edx 29: 8b 4c 24 30 movl 0x30(%esp,1),%ecx 2d: 89 44 24 1c movl %eax,0x1c(%esp,1) 31: 89 c5 movl %eax,%ebp 33: 8b 12 movl (%edx),%edx 35: 01 54 24 1c addl %edx,0x1c(%esp,1) 39: 8b 5c 24 1c movl 0x1c(%esp,1),%ebx 3d: 83 44 24 34 04 addl $0x4,0x34(%esp,1) 42: 89 c2 movl %eax,%edx 44: 03 11 addl (%ecx),%edx 46: 83 c1 04 addl $0x4,%ecx 49: 89 4c 24 30 movl %ecx,0x30(%esp,1) 4d: 89 d7 movl %edx,%edi 4f: 89 f1 movl %esi,%ecx 51: 8a 2b movb (%ebx),%ch 53: eb 0b jmp 60 <__GR_shift_scanline+0x60> 55: 8d 74 26 00 leal 0x0(%esi,1),%esi 59: 8d bc 27 00 00 leal 0x0(%edi,1),%edi 5e: 00 00 60: 4b decl %ebx 61: 88 e8 movb %ch,%al 63: 8a 23 movb (%ebx),%ah 65: 88 e5 movb %ah,%ch 67: d3 e8 shrl %cl,%eax 69: 88 07 movb %al,(%edi) 6b: 4f decl %edi 6c: 4d decl %ebp 6d: 75 f1 jne 60 <__GR_shift_scanline+0x60> 6f: d2 ed shrb %cl,%ch 71: 88 2f movb %ch,(%edi) 73: ff 4c 24 14 decl 0x14(%esp,1) 77: 75 a8 jne 21 <__GR_shift_scanline+0x21> 79: eb 5a jmp d5 <__GR_shift_scanline+0xd5> 7b: 90 nop 7c: 8d 74 26 00 leal 0x0(%esi,1),%esi 80: b8 08 00 00 00 movl $0x8,%eax 85: 29 f0 subl %esi,%eax 87: 89 c6 movl %eax,%esi 89: 85 d2 testl %edx,%edx 8b: 7e 48 jle d5 <__GR_shift_scanline+0xd5> 8d: 89 54 24 14 movl %edx,0x14(%esp,1) 91: 8b 44 24 34 movl 0x34(%esp,1),%eax 95: 8b 54 24 30 movl 0x30(%esp,1),%edx 99: 8b 7c 24 38 movl 0x38(%esp,1),%edi 9d: 89 f1 movl %esi,%ecx 9f: 8b 00 movl (%eax),%eax a1: 89 44 24 1c movl %eax,0x1c(%esp,1) a5: 83 44 24 34 04 addl $0x4,0x34(%esp,1) aa: 8b 12 movl (%edx),%edx ac: 89 54 24 10 movl %edx,0x10(%esp,1) b0: 83 44 24 30 04 addl $0x4,0x30(%esp,1) b5: 89 c3 movl %eax,%ebx b7: 8a 2b movb (%ebx),%ch b9: eb 05 jmp c0 <__GR_shift_scanline+0xc0> bb: 90 nop bc: 8d 74 26 00 leal 0x0(%esi,1),%esi c0: 43 incl %ebx c1: 88 ec movb %ch,%ah c3: 8a 03 movb (%ebx),%al c5: 88 c5 movb %al,%ch c7: d3 e8 shrl %cl,%eax c9: 88 02 movb %al,(%edx) cb: 42 incl %edx cc: 4f decl %edi cd: 75 f1 jne c0 <__GR_shift_scanline+0xc0> cf: ff 4c 24 14 decl 0x14(%esp,1) d3: 75 bc jne 91 <__GR_shift_scanline+0x91> d5: 5b popl %ebx d6: 5e popl %esi d7: 5f popl %edi d8: 5d popl %ebp d9: 83 c4 1c addl $0x1c,%esp dc: c3 ret dd: 8d 76 00 leal 0x0(%esi),%esi