Added DOS int 21h function 4452h support (DR-DOS version check).

866c5886 · Peter Hawkins · Alexandre Julliard · 1cbaad7f · 866c5886
Commit 866c5886 authored Oct 13, 2000 by Peter Hawkins Committed by Alexandre Julliard Oct 13, 2000
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int21.c msdos/int21.c +10 -0

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--- a/msdos/int21.c
+++ b/msdos/int21.c
@@ -1727,6 +1727,16 @@ void WINAPI DOS3Call( CONTEXT86 *context )
        case 0xe0:  /* Sun PC-NFS API */
            /* not installed */
            break;
+	
+	case 0x52:  /* DR-DOS version */
+            /* This is not DR-DOS */
+
+            TRACE("GET DR-DOS VERSION requested");
+
+            AX_reg(context) = 0x0001; /* Invalid function */
+            SET_CFLAG(context);       /* Error */
+            SetLastError( ERROR_INVALID_FUNCTION );
+            break;
                
        default:
            INT_BARF( context, 0x21 );