Date: Wed, 14 Nov 2001 13:06:39 +0100 (CET) From: Khaled Daham <khaled@w-arts.com> To: <freebsd-alpha@FreeBSD.ORG> Subject: Re: Alpha assembler programming. Message-ID: <20011114130158.Y22961-100000@fantasy.telia.net> In-Reply-To: <20011114115912.A42331@cicely8.cicely.de>
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On Wed, 14 Nov 2001, Bernd Walter wrote: > I did this "Hello World!" a long time ago. > IIRC it was based on the hello world in the FreeBSD programmers guide > for i386. > > cc -c -g -x assembler-with-cpp -ffixed-8 hello-world2.s > ld -o hello-world2 hello-world2.o > > > #include <machine/asm.h> > .text > .globl _start /* must be declared for linker (ld) */ > > textseq: > msg: .ascii "Hello, world!\n" /* our dear string */ > .equ t12diff, _start-textseq > .equ len, . - msg /* length of our dear string */ > > _start: /* tell linker entry point */ > subq t12,t12diff,gp /* get address of .text */ > addq zero,1,a0 /* file descriptor (stdout) */ > addq gp,textseq-msg,a1 /* message to write */ > addq zero,len,a2 /* message length */ > addq zero,0x4,v0 /* system call number (sys_write) */ > call_pal PAL_OSF1_callsys /* call kernel - errors returned in a3 */ > addq zero,0x0,v0 /* system call number (sys_exit) */ > call_pal PAL_OSF1_callsys /* exit */ I got it all working by including machine/asm.h and using CALL(write) instead of just jsr write ( which resulted in a SIGSEGV ). /Khaled Daham, w.arts Mail: khaled@w-arts.com Cell: +46-70-6785492 FreeBSD: The Power to Serve! http://www.FreeBSD.org/ This isn't rocket science -- but it _is_ computer science. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the messagehelp
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