98ffa17006
Split the Open Watcom assembly glue into separate IPX and NCP requester modules. Keep the IPX socket and far-memory helper entry points in ipx.asm and move the INT 21h Net_Call plus Client32 requester entry points into ncpcall.asm. Split the former kern.h declarations accordingly into ipx.h and ncpcall.h, and update net.h and the Open Watcom build to use the new headers and object files. This matches the current source layout where ncpcall.c owns the low-level NCP transport helpers and ncpapi.c owns the ncpXX_YY_* protocol API wrappers. No behavior change.
211 lines
4.4 KiB
NASM
211 lines
4.4 KiB
NASM
;
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; mars-nwe-dosutils - NetWare/DOS utility tools.
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;
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; Copyright (C) 2026 Mario Fetka
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; Copyright (C) 1993,1996 Martin Stover, Marburg, Germany
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;
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; This program is free software; you can redistribute it and/or
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; modify it under the terms of the GNU General Public License
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; as published by the Free Software Foundation; either version 2
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; of the License, or (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program; if not, see <http://www.gnu.org/licenses/>.
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; Purpose: Open Watcom WASM/MASM-syntax IPX and far-memory helper glue.
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; Depends on: ipx.h declarations, netcall.c callers and net.h shared types.
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;
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; ipx.asm
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;
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; Open Watcom WASM/MASM-syntax port of the IPX and xmemmove parts of
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; the old TASM IDEAL kern.asm.
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; Intended for 16-bit DOS large memory model builds on Linux with Open Watcom v2.
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;
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; Keep doc/kern.asm as the historical TASM source and use this split file for
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; the reproducible Open Watcom build.
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.286
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.model large
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.data
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enterIPX dd 0
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.code
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public _IPXinit
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public _IPXopen_socket
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public _IPXclose_socket
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public _IPXlisten
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public _xmemmove
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_IPXinit proc far
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push bp
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mov bp, sp
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push ds
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push si
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push di
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mov ax, 7A00h
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int 2Fh
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cmp al, 0FFh
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jne ipxinit_done
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mov cx, @data
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mov ds, cx
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mov word ptr enterIPX, di
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mov ax, es
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mov word ptr enterIPX+2, ax
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mov al, 1
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ipxinit_done:
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mov ah, 0
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pop di
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pop si
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pop ds
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pop bp
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ret
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_IPXinit endp
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_xmemmove proc far
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push bp
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mov bp, sp
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; far procedure stack layout, large model:
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; [bp+0] old bp
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; [bp+2] return offset
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; [bp+4] return segment
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; [bp+6] z offset
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; [bp+8] z segment
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; [bp+10] q offset
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; [bp+12] q segment
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; [bp+14] nmbr
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cli
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mov cx, [bp+14]
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or cx, cx
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jz xmem_done
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push ds
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push si
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push di
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pushf
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lds si, dword ptr [bp+10]
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les di, dword ptr [bp+6]
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cmp di, si
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jl xmem_forward
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std
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dec cx
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add di, cx
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add si, cx
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inc cx
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jmp xmem_copy
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xmem_forward:
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cld
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xmem_copy:
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rep movsb
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popf
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pop di
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pop si
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pop ds
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xmem_done:
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pop bp
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sti
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ret
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_xmemmove endp
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_IPXopen_socket proc far
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push bp
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mov bp, sp
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push ds
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push si
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push di
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; int IPXopen_socket(UI sock, int live)
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mov ax, [bp+8] ; live
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mov dx, [bp+6] ; sock
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mov bx, @data
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mov ds, bx
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mov bx, 0
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call dword ptr enterIPX
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cmp al, 0FFh
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jne ipxopen_not_already
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mov ax, -1 ; socket already open
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jmp ipxopen_done
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ipxopen_not_already:
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cmp al, 0FEh
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jne ipxopen_ok
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mov ax, -2 ; socket table full
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jmp ipxopen_done
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ipxopen_ok:
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mov ax, dx
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ipxopen_done:
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pop di
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pop si
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pop ds
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pop bp
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ret
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_IPXopen_socket endp
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_IPXclose_socket proc far
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push bp
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mov bp, sp
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push ds
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push si
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push di
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; void IPXclose_socket(UI sock)
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mov dx, [bp+6]
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mov bx, @data
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mov ds, bx
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mov bx, 1
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call dword ptr enterIPX
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pop di
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pop si
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pop ds
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pop bp
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ret
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_IPXclose_socket endp
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_IPXlisten proc far
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push bp
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mov bp, sp
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push ds
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push si
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push di
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; int IPXlisten(ECB *ecb)
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les si, dword ptr [bp+6]
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mov bx, @data
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mov ds, bx
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mov bx, 4
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call dword ptr enterIPX
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pop di
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pop si
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pop ds
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pop bp
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mov ah, 0
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ret
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_IPXlisten endp
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end
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