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- ; This is file DOUTILS.ASM
- ;
- ; Copyright (C) 1991 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
- ;
- ; This file is distributed under the terms listed in the document
- ; "copying.dj", available from DJ Delorie at the address above.
- ; A copy of "copying.dj" should accompany this file; if not, a copy
- ; should be available from where this file was obtained. This file
- ; may not be distributed without a verbatim copy of "copying.dj".
- ;
- ; This file is distributed WITHOUT ANY WARRANTY; without even the implied
- ; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- ;
-
- ; History:14,1
- title du_utils
- .386p
-
- include build.inc
- include segdefs.inc
- include tss.inc
- include gdt.inc
- include idt.inc
-
- ;------------------------------------------------------------------------
-
- start_data16
-
- end_data16
-
- ;------------------------------------------------------------------------
-
- start_code16
-
- extrn _fclex:near
-
- public __do_memset32
- __do_memset32:
- push cx
- shr cx,2
- jcxz nodset
- db 67h ; so EDI is used
- rep stosd
- nodset:
- pop cx
- and cx,3
- jcxz nobset
- db 67h ; so EDI is used
- rep stosb
- nobset:
- jmpt g_ctss
-
- ;------------------------------------------------------------------------
-
- public __do_memmov32
- __do_memmov32:
- push cx
- shr cx,2
- jcxz nodmove
- db 67h ; so ESI,EDI is used
- rep movsd
- nodmove:
- pop cx
- and cx,3
- jcxz nobmove
- db 67h ; so ESI,EDI is used
- rep movsb
- nobmove:
- jmpt g_ctss
-
-
- ;------------------------------------------------------------------------
-
- end_code16
-
- ;------------------------------------------------------------------------
-
- start_code32
-
- end_code32
-
- ;------------------------------------------------------------------------
-
- end
-