reactos/hal/halx86/generic/v86.S

41 lines
910 B
ArmAsm

/*
* FILE: hal/halx86/generic/v86.S
* COPYRIGHT: See COPYING in the top level directory
* PURPOSE: System Traps, Entrypoints and Exitpoints
* PROGRAMMER: Timo Kreuzer (timo.kreuzer@reactos.org)
* NOTE: See asmmacro.S for the shared entry/exit code.
*/
/* INCLUDES ******************************************************************/
#include <asm.inc>
#include <ks386.inc>
.code
PUBLIC @HalpExitToV86@4
@HalpExitToV86@4:
/* Point esp to the iret frame and return */
lea esp, [ecx + KTRAP_FRAME_EIP]
iretd
/* Here starts the real mode code */
.code16
PUBLIC _HalpRealModeStart
_HalpRealModeStart:
/* INT 0x10: AH = 0 (Set video Mode), AL = 0x12 (Mode 12) */
mov eax, HEX(12)
int HEX(10)
/* BOP */
.byte HEX(C4), HEX(C4)
/* The real mode stack */
.align 4
.space 2048
_HalpRealModeEnd:
PUBLIC _HalpRealModeEnd
.endcode16
END