[HAL]

[reactos.git] / reactos / hal / halx86 / generic / trap.S

diff --git a/reactos/hal/halx86/generic/trap.S b/reactos/hal/halx86/generic/trap.S
index 00fc256..2ad319b 100644 (file)
--- a/reactos/hal/halx86/generic/trap.S
+++ b/reactos/hal/halx86/generic/trap.S
@@ -20,4 +20,26 @@ TRAP_ENTRY HalpApcInterrupt, KI_SOFTWARE_TRAP
 TRAP_ENTRY HalpClockInterrupt, KI_PUSH_FAKE_ERROR_CODE
 TRAP_ENTRY HalpProfileInterrupt, KI_PUSH_FAKE_ERROR_CODE
 
 TRAP_ENTRY HalpClockInterrupt, KI_PUSH_FAKE_ERROR_CODE
 TRAP_ENTRY HalpProfileInterrupt, KI_PUSH_FAKE_ERROR_CODE
 

+PUBLIC @HalpExitToV86@4
+@HalpExitToV86@4:
+    /* Point esp to the iret frame and return */
+    lea esp, [ecx + KTRAP_FRAME_EIP]
+    iret
+
+/* 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