fix vdd export and use ntvdm dos version number

cracyc · Nov 16, 2024 · 1769014 · 1769014
1 parent b8b473c
commit 1769014
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Showing 3 changed files with 9 additions and 9 deletions.
diff --git a/msdos.cpp b/msdos.cpp
@@ -12918,8 +12918,8 @@ inline void msdos_int_21h_30h()
 		CPU_BX = 0xff00;	// OEM = Microsoft
 	}
 	CPU_CX = 0x0000;
-	CPU_AL = dos_major_version;	// 7
-	CPU_AH = dos_minor_version;	// 10
+	CPU_AL = dos_major_version;	// 5
+	CPU_AH = dos_minor_version;	// 50
 }
 
 inline void msdos_int_21h_31h()
@@ -12983,9 +12983,9 @@ inline void msdos_int_21h_33h()
 		CPU_DL = (UINT8)drive;
 		break;
 	case 0x06:
-		// MS-DOS version (7.10)
-		CPU_BL = 7;
-		CPU_BH = 10;
+		// MS-DOS version (5.50)
+		CPU_BL = 5;
+		CPU_BH = 50;
 		CPU_DL = 0;
 #ifdef SUPPORT_HMA
 		CPU_DH = 0x00;
@@ -24626,7 +24626,7 @@ __declspec(dllexport) void WINAPI VDDDeInstallIOHook(HANDLE hvdd, WORD cPortRang
     return;
 }
 
-__declspec(dllexport) BYTE *WINAPI MGetVDMPointer(DWORD addr, DWORD size, BOOL protmode)
+__declspec(dllexport) BYTE *WINAPI MGetVdmPointer(DWORD addr, DWORD size, BOOL protmode)
 {
     return mem + (DWORD)(HIWORD(addr) << 4) + LOWORD(addr);
 }

diff --git a/msdos.h b/msdos.h
@@ -1118,8 +1118,8 @@ typedef struct {
 	HANDLE find_handle;
 } dtainfo_t;
 
-UINT8 dos_major_version = 7;	// Windows 98 Second Edition
-UINT8 dos_minor_version = 10;
+UINT8 dos_major_version = 5;	// Windows NT
+UINT8 dos_minor_version = 50;
 UINT8 win_major_version = 4;
 UINT8 win_minor_version = 10;
 

diff --git a/ntvdm.def b/ntvdm.def
@@ -83,4 +83,4 @@ EXPORTS
   setOF = msdos.exe.setOF
   VDDInstallIOHook = msdos.exe.VDDInstallIOHook
   VDDDeInstallIOHook = msdos.exe.VDDDeInstallIOHook
-  MGetVDMPointer = msdos.exe.MGetVDMPointer
+  MGetVdmPointer = msdos.exe.MGetVdmPointer