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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
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/*-
* Initial implementation:
* Copyright (c) 2001 Robert Drehmel
* All rights reserved.
*
* As long as the above copyright statement and this notice remain
* unchanged, you can do what ever you want with this file.
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/boot/sparc64/loader/locore.S 181398 2008-08-07 22:46:25Z marius $");
#define LOCORE
#include <machine/frame.h>
#include <machine/fsr.h>
#include <machine/intr_machdep.h>
#include <machine/pstate.h>
#define PAGE_SIZE 8192
#define PAGE_SHIFT 13
#define STACK_SIZE (2 * PAGE_SIZE)
ENTRY(_start)
/* Limit interrupts. */
wrpr %g0, PIL_TICK - 1, %pil
/*
* PSTATE: privileged, interrupts enabled, floating point
* unit enabled
*/
wrpr %g0, PSTATE_PRIV | PSTATE_IE | PSTATE_PEF, %pstate
wr %g0, FPRS_FEF, %fprs
setx stack + STACK_SIZE - SPOFF - CCFSZ, %l7, %l6
mov %l6, %sp
call main
mov %o4, %o0
sir
.comm stack, STACK_SIZE, 32