From: cinap_lenrek@gmx.de
To: 9fans@9fans.net
Subject: Re: [9fans] 5l bug
Date: Mon, 29 Apr 2013 21:06:01 +0200 [thread overview]
Message-ID: <4ef8328033f37e9bcc5980b3eebb9636@rei2.9hal> (raw)
In-Reply-To: <55d863d12c769379ce2cbf372d2f5160@coraid.com>
term% cat foo.c
#include <u.h>
#include <libc.h>
void
main(void)
{
int i, j, k;
i = 1;
j = 0;
k = j <= 0 ? 1 : 2/i;
print("%d\n", k);
exits(nil);
}
term% 5c -S foo.c
TEXT main+0(SB),0,$20
MOVW $1,R1
MOVW $0,R2
CMP $0,R2,
MOVW.LE R1,R3
BLE ,3(PC)
MOVW $2,R3
DIV R1,R3,R3
MOVW $.string<>+0(SB),R0
MOVW R3,8(R13)
BL ,print+0(SB)
MOVW $0,R0
BL ,exits+0(SB)
RET ,
DATA .string<>+0(SB)/8,$"%d\n\z\z\z\z\z"
GLOBL .string<>+0(SB),$8
END ,
5.out:arm plan 9 executable
/sys/lib/acid/port
/sys/lib/acid/arm
acid: asm(main)
main 0x00001020 MOVW.W R14,#-0x18(R13)
main+0x4 0x00001024 MOVW $#0x1,R1
main+0x8 0x00001028 MOVW $#0x0,R2
main+0xc 0x0000102c CMP.S $#0x0,R2
main+0x10 0x00001030 MOVW.LE R1,R3
main+0x14 0x00001034 B.LE main+0x34
main+0x18 0x00001038 MOVW $#0x2,R3
main+0x1c 0x0000103c SUB $#0x8,R13,R13
main+0x20 0x00001040 MOVW R1,#0x4(R13)
main+0x24 0x00001044 MOVW R3,R11
main+0x28 0x00001048 BL _div
main+0x2c 0x0000104c MOVW R11,R3
main+0x30 0x00001050 ADD $#0x8,R13,R13
main+0x34 0x00001054 MOVW $#0x7084,R0
main+0x38 0x00001058 MOVW R3,#0x8(R13)
main+0x3c 0x0000105c BL print
main+0x40 0x00001060 MOVW $#0x0,R0
main+0x44 0x00001064 BL exits
main+0x48 0x00001068 RET.P #0x18(R13)
_main 0x0000106c MOVW.W R14,#-0x54(R13)
acid:
--
cinap
next prev parent reply other threads:[~2013-04-29 19:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-29 5:54 Paul Patience
2013-04-29 18:53 ` cinap_lenrek
2013-04-29 18:57 ` erik quanstrom
2013-04-29 19:06 ` cinap_lenrek [this message]
2013-04-29 19:08 ` erik quanstrom
2013-04-29 19:34 ` Richard Miller
2013-04-30 10:15 ` kernel panic
2013-04-30 9:07 ` zephyr.pellerin
2013-04-30 10:58 ` kernel panic
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