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authorGravatar Mark Zbikowski2024-04-25 21:24:10 +0100
committerGravatar Microsoft Open Source2024-04-25 22:32:27 +0000
commit2d04cacc5322951f187bb17e017c12920ac8ebe2 (patch)
tree80ee017efa878dfd5344b44249e6a241f2a7f6e2 /v4.0/src/CMD/RESTORE/_PARSE.ASM
parentMerge pull request #430 from jpbaltazar/typoptbr (diff)
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MZ is back!HEADmain
Diffstat (limited to 'v4.0/src/CMD/RESTORE/_PARSE.ASM')
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1page 60,132
2name _parse
3title C to PARSER interface
4;-------------------------------------------------------------------
5;
6; MODULE: _parse
7;
8; PURPOSE: Supplies an interface between C programs and
9; the DOS 3.3 parser
10;
11; CALLING FORMAT:
12; parse(&inregs,&outregs);
13;
14; DATE: 5-21-87
15;
16;-------------------------------------------------------------------
17
18; extrn sysparse:far
19
20 public _parse
21
22;-------------------------------------------------------------------
23FarSW equ 0 ; make sysparse be a NEAR proc
24TimeSW equ 1 ; Check time format
25FileSW equ 1 ; Check file specification
26CAPSW equ 1 ; Perform CAPS if specified
27CmpxSW equ 0 ; Check complex list
28NumSW equ 0 ; Check numeric value
29KeySW equ 0 ; Support keywords
30SwSW equ 1 ; Support switches
31Val1SW equ 0 ; Support value definition 1
32Val2SW equ 0 ; Support value definition 2
33Val3SW equ 0 ; Support value definition 3
34DrvSW equ 1 ; Support drive only format
35QusSW equ 0 ; Support quoted string format
36IncSW equ 0 ; Dont include PSDATA, I just did it
37BaseSW equ 1 ; DS points to data
38;-------------------------------------------------------------------
39
40DGROUP GROUP _DATA
41PGROUP GROUP _TEXT
42
43_DATA segment byte public 'DATA'
44include psdata.inc
45_DATA ends
46
47_TEXT segment byte public 'CODE'
48
49 ASSUME CS: PGROUP
50 ASSUME DS: DGROUP
51
52;-------------------------------------------------------------------
53.xlist
54include parse.asm ; include the parser
55.list
56;-------------------------------------------------------------------
57
58_parse proc near
59
60 push bp ; save user's base pointer
61 mov bp,sp ; set bp to current sp
62 push di ; save some registers
63 push si
64
65; copy C inregs into proper registers
66
67 mov di,[bp+4] ; fix di (arg 0)
68
69;-------------------------------------------------------------------
70
71 mov ax,[di+0ah] ; load di
72 push ax ; the di value from inregs is now on stack
73
74 mov ax,[di+00] ; get inregs.x.ax
75 mov bx,[di+02] ; get inregs.x.bx
76 mov cx,[di+04] ; get inregs.x.cx
77 mov dx,[di+06] ; get inregs.x.dx
78 mov si,[di+08] ; get inregs.x.si
79 pop di ; get inregs.x.di from stack
80
81 push bp ; save base pointer
82;-------------------------------------------------------------------
83 call sysparse ; call the parser
84;-------------------------------------------------------------------
85 pop bp ; restore base pointer
86 push di ; the di value from call is now on stack
87 mov di,[bp+6] ; fix di (arg 1)
88
89 mov [di+00],ax ; load outregs.x.ax
90 mov [di+02],bx ; load outregs.x.bx
91 mov [di+04],cx ; load outregs.x.cx
92 mov [di+06],dx ; load outregs.x.dx
93 mov [di+08],si ; load outregs.x.si
94
95 lahf ; get flags into ax
96 mov al,ah ; move into low byte
97 mov [di+0ch],ax ; load outregs.x.cflag
98
99 pop ax ; get di from stack
100 mov [di+0ah],ax ; load outregs.x.di
101
102;-------------------------------------------------------------------
103
104 pop si ; restore registers
105 pop di
106 mov sp,bp ; restore sp
107 pop bp ; restore user's bp
108 ret
109
110_parse endp
111
112_TEXT ends ; end code segment
113 end
114
115 \ No newline at end of file