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AX = 2510h EBX = CS:IP of real-mode procedure to call ECX = number of two-byte words to copy to protected-mode stack to real-mode stack DS:EDX -> pointer to parameter block (see #01360)
Return:
CF clear if successful all segment registers unchanged, EDX unchanged all other general registers contain values set by real-mode proc all other flags are set as they were left by real-mode procedure real-mode register values are returned in the parameter block CF set on error EAX = error code 01h not enough real-mode stack space
Note: Unlike most of the preceding 25xxh functions, this one is not supported by FlashTek X-32VM
Format of Phar Lap real-mode call parameter block: Offset Size Description (Table 01360) 00h WORD real-mode DS value 02h WORD real-mode ES value 04h WORD real-mode FS value 06h WORD real-mode GS value 08h DWORD real-mode EAX value 0Ch DWORD real-mode EBX value 10h DWORD real-mode ECX value 14h DWORD real-mode EDX value
Category: DOS Extenders - Int 21h - P
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