◄Up► ◄Next► ◄Previous► ──────────────────────────────────────────────────────────────────────────── include vmm.inc mov ecx, 0 ; must be zero VMMcall Get_Next_Arena mov [Data], eax ; data value mov [Flags], ecx ; high MS-DOS memory flags mov [Memory], edx ; points to array of Common_Memory_struc The Get_Next_Arena service returns a pointer to an MS-DOS data structure. Virtual devices must not use this service; it is intended for exclusive use by the virtual MS-DOS manager. This service has no parameters. Return Value The EAX, ECX, and EDX registers contain the following information: Register Description ──────────────────────────────────────────────────────────────────────────── EAX Specifies a data value. ECX Specifies the high MS-DOS flags. It can be a combination of the following values: Value Meaning ────────────────────────────────────────────────────────────────── GNA_HiDOSLinked Set if high MS-DOS arenas were linked in when Windows was started. GNA_IsHighDOS Set if high MS-DOS arenas exist. EDX Points to an array of Common_Memory_struc structures specifying the addresses and sizes of high MS-DOS memory segments. Each element of the list has the following form: Common_Memory_struc struc CM_seg dw ? ; segment address of start CM_size dw ? ; size in paragraphs Common_Memory_struc ends The last element of array contains zero. Uses EAX, ECX, EDX, and Flags ♦