Table of Contents

Note: This API call is for DOS and Win16 personality only. Use Family API for portability.

2018/09/07 05:04 · prokushev · 0 Comments

Int 21H, AH=5DH, AL=0AH

Version

3.1 and higher

Brief

SET EXTENDED ERROR INFORMATION

Family API

Input

AX = 5D0Ah
DS:DX -> 11-word DOS parameter list (see #01686)

Return

nothing. next call to AH=59h will return values from fields AX,BX,CX,DX,DI, and ES in corresponding registers

Macro

Notes

documented for DOS 5+, but undocumented in earlier versions

the MS-DOS Programmer's Reference incorrectly states that this call was introduced in DOS 4, and fails to mention that the ERROR structure passed to this function is a DOS parameter list.

BUGS:DR DOS 3.41 and 5.0 read the value for ES from the DS field of the DPL; fortunately, MS-DOS ignores the DS field, allowing a generic routine which sets both DS and ES fields to the same value

Novell DOS 7 (through at least Update 4) does not save the pointer, which is always reported as 0000h:0000h by AH=59h; Update 15 fully supports this function

See also

AH=59h/BX=0000h

Note

Text based on Ralf Brown Interrupt List Release 61

2018/09/04 17:23 · prokushev · 0 Comments