[NTVDM]

[reactos.git] / subsystems / ntvdm / emulator.h

diff --git a/subsystems/ntvdm/emulator.h b/subsystems/ntvdm/emulator.h
index 51e9dce..b5ba9a8 100644 (file)
--- a/subsystems/ntvdm/emulator.h
+++ b/subsystems/ntvdm/emulator.h
@@ -44,6 +44,9 @@
 
 
 /* Basic Memory Management */
+#define MEM_ALIGN_UP(ptr, align)    MEM_ALIGN_DOWN((ULONG_PTR)(ptr) + (align) - 1l, (align))
+#define MEM_ALIGN_DOWN(ptr, align)  ((ULONG_PTR)(ptr) & ~((align) - 1l))
+
 #define TO_LINEAR(seg, off) (((seg) << 4) + (off))
 #define MAX_SEGMENT 0xFFFF
 #define MAX_OFFSET  0xFFFF
@@ -55,6 +58,9 @@
 #define SEG_OFF_TO_PTR(seg, off)    \
     (PVOID)((ULONG_PTR)BaseAddress + TO_LINEAR((seg), (off)))
 
+#define REAL_TO_PHYS(ptr)   (PVOID)((ULONG_PTR)(ptr) + (ULONG_PTR)BaseAddress)
+#define PHYS_TO_REAL(ptr)   (PVOID)((ULONG_PTR)(ptr) - (ULONG_PTR)BaseAddress)
+
 
 /* BCD-Binary conversion */
 #define BINARY_TO_BCD(x) ((((x) / 1000) << 12) + (((x) / 100) << 8) + (((x) / 10) << 4) + ((x) % 10))