diff options
Diffstat (limited to 'contrib/syslinux/latest/core/call16.c')
-rw-r--r-- | contrib/syslinux/latest/core/call16.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/contrib/syslinux/latest/core/call16.c b/contrib/syslinux/latest/core/call16.c deleted file mode 100644 index 095f814..0000000 --- a/contrib/syslinux/latest/core/call16.c +++ /dev/null @@ -1,41 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright 2009-2010 Intel Corporation; author: H. Peter Anvin - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, - * Boston MA 02110-1301, USA; either version 2 of the License, or - * (at your option) any later version; incorporated herein by reference. - * - * ----------------------------------------------------------------------- */ - -/* - * call16.c - * - * Simple wrapper to call 16-bit core functions from 32-bit code - */ - -#include <stddef.h> -#include <stdio.h> -#include "core.h" - -const com32sys_t zero_regs; /* Common all-zero register set */ - -static inline uint32_t eflags(void) -{ - uint32_t v; - - asm volatile("pushfl ; popl %0" : "=rm" (v)); - return v; -} - -void call16(void (*func)(void), const com32sys_t *ireg, com32sys_t *oreg) -{ - com32sys_t xreg = *ireg; - - /* Enable interrupts if and only if they are enabled in the caller */ - xreg.eflags.l = (xreg.eflags.l & ~EFLAGS_IF) | (eflags() & EFLAGS_IF); - - core_farcall((size_t)func, &xreg, oreg); -} |