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[NTVDM]

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- Do not hardcode the number of XMS memory blocks that can map the HMA. It should be function of the MAX_ADDRESS value of our emulator.
- Require that MAX_ADDRESS should be greater or equal than 1 MB.

svn path=/trunk/; revision=69323
This commit is contained in:
Hermès Bélusca-Maïto 2015-09-23 01:45:18 +00:00
parent 9e06c66b38
commit 81b8c2bb92
2 changed files with 2 additions and 1 deletions
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2
reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/himem.h
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@ -13,8 +13,8 @@
/* DEFINITIONS ****************************************************************/
#define XMS_ADDRESS 0x110000 // Just above HMA
#define XMS_BLOCKS 0x3BC0 // XMS_ADDRESS + (XMS_BLOCKS * XMS_BLOCK_SIZE) == 16 MB
#define XMS_BLOCK_SIZE 1024
#define XMS_BLOCKS ((MAX_ADDRESS - XMS_ADDRESS) / XMS_BLOCK_SIZE)
#define XMS_MAX_HANDLES 16 // Specification: min 1, max 128, default 32
#define XMS_STATUS_SUCCESS 0x00

1
reactos/subsystems/mvdm/ntvdm/emulator.h
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@ -23,6 +23,7 @@
#define MAX_SEGMENT 0xFFFF
#define MAX_OFFSET 0xFFFF
#define MAX_ADDRESS 0x1000000 // 16 MB of RAM; see also: kernel32/client/vdm.c!BaseGetVdmConfigInfo
C_ASSERT(0x100000 <= MAX_ADDRESS); // A minimum of 1 MB is required for PC emulation.
#define SEG_OFF_TO_PTR(seg, off) \
(PVOID)((ULONG_PTR)BaseAddress + TO_LINEAR((seg), (off)))