Int 21/AX=4403h

AI Architects - OS/x86??? - API

AX = 4403h
BX = handle for device "AIA_OS"
CX = number of bytes to write (ignored)
DS:DX -> 12-byte buffer (see #01526), first byte is command:
81h installation check
82h get API entry point
84h uninstall

Return:
CF clear if successful
AX = number of bytes actually written
DS:DX buffer filled
CF set on error
AX = error code (01h,05h,06h,0Ch,0Dh) (see #01680 at AH=59h)

Notes: These functions are only available if the DOS extender was loaded as a device driver in CONFIG.SYS. Called by TKERNEL (a licensed version of AI Architects/Ergo OS/x86)

Index:
Installation check;OS/x86|entry point;OS/x86|uninstall;OS/x86

Format of buffer on return:

Offset  Size    Description     (Table 01526)
00h  4 BYTEs   signature "IABH"
---if function 81h---
(no additional fields)
---if function 82h---
04h    DWORD   pointer to API entry point (see INT 2F/AX=FBA1h/BX=0082h)
---if function 84h---
04h    WORD    success indicator
06h    WORD    segment of ???
08h    WORD    segment of ??? memory block to free if nonzero
0Ah    WORD    segment of ??? memory block to free if nonzero

Category: DOS Extenders - Int 21h - A

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