Subversion Repositories Kolibri OS

Rev

Rev 2 | Rev 75 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2 Rev 19
Line 1... Line 1...
1 
;**********************************************************
 1 
;**********************************************************
2 
;  ¥¯®á।á⢥­­ ï à ¡®â  á ª®­â஫«¥à®¬ £¨¡ª®£® ¤¨áª 
 2 
;  Íåïîñðåäñòâåííàÿ ðàáîòà ñ êîíòðîëëåðîì ãèáêîãî äèñêà
3 
;**********************************************************
 3 
;**********************************************************
4 
; €¢â®à ¨á室­®£® ⥪áâ   Šã« ª®¢ ‚« ¤¨¬¨à ƒ¥­­ ¤ì¥¢¨ç.
 4 
; Àâòîð èñõîäíîãî òåêñòà  Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷.
5 
; €¤ ¯â æ¨ï ¨ ¤®à ¡®âª  Mario79
 5 
; Àäàïòàöèÿ è äîðàáîòêà Mario79
6 
fdd_read_and_write:
 - 
 
7 
     pusha
 - 
 
8 
read_sector:
 - 
 
9 
     cmp  eax,1
 - 
 
10 
     jne  write_sector
 - 
 
11 
     call save_HTS_values
 - 
 
12 
     call flp_readsector
 - 
 
13 
     call give_back_application_data
 - 
 
14 
     jmp  fdd_read_end
 - 
 
15 
write_sector:
 - 
 
16 
     cmp  eax,2
 - 
 
17 
     jne  fdd_read_end
 - 
 
18 
     call save_HTS_values
 - 
 
19 
     call take_data_from_application
 - 
 
20 
     call flp_writesector
 - 
 
21 
fdd_read_end:
 - 
 
22 
     popa
 - 
 
23 
     ret
 - 
 
Line 24... Line -...
24 
 
 - 
 
25 
save_HTS_values:
 - 
 
26 
     mov  [FDD_Sector],bl
 - 
 
27 
     mov  [FDD_Head],bh
 - 
 
28 
     shr  ebx,16
 - 
 
29 
     mov  [FDD_Track],bl
 - 
 
30 
     mov  [FDD_Type],bh
 - 
 
31 
     ret
 - 
 
32 
 
 6 
 
33 
give_back_application_data:  ; ¯¥à¥á« âì ¯à¨«®¦¥­¨î
7 
give_back_application_data:  ; ïåðåñëàòü ïðèëîæåíèþ
34 
     mov edi,[3010h]
 8 
     mov edi,[3010h]
35 
     mov edi,[edi+10h]
 9 
     mov edi,[edi+10h]
36 
     add edi,ecx
 10 
     add edi,ecx
37 
give_back_application_data_1:
 11 
give_back_application_data_1:
Line 40... Line 14...
40 
     mov cx,128
 14 
     mov cx,128
41 
     cld
 15 
     cld
42 
     rep movsd
 16 
     rep movsd
43 
     ret
 17 
     ret
Line 44... Line 18...
44 
 
 18 
 
45 
take_data_from_application:   ; ¢§ïâì ¨§ ¯à¨«®¦¥­¨ï
 19 
take_data_from_application:   ; âçÿòü èç ïðèëîæåíèÿ
46 
     mov esi,[3010h]
 20 
     mov esi,[3010h]
47 
     mov esi,[esi+10h]
 21 
     mov esi,[esi+10h]
48 
     add esi,ecx
 22 
     add esi,ecx
49 
take_data_from_application_1:
 23 
take_data_from_application_1:
Line 52... Line 26...
52 
     mov cx,128
 26 
     mov cx,128
53 
     cld
 27 
     cld
54 
     rep movsd
 28 
     rep movsd
55 
     ret
 29 
     ret
Line 56... Line -...
56 
 
 - 
 
57 
flp_initialization:
 - 
 
58 
; “áâ ­®¢¨âì ­®¢ë© ®¡à ¡®â稪 ¯à¥à뢠­¨ï ƒŒ„
 - 
 
59 
        call    SetUserInterrupts
 - 
 
60 
; ‚ª«îç¨âì ¬®â®à ¤¨áª®¢®¤ 
 - 
 
61 
        call    FDDMotorON
- 
 
62 
; ˆ­¨æ¨ «¨§¨à®¢ âì ¯¥à¥¬¥­­ë¥
 - 
 
63 
;        mov     [FDD_Track],0
 - 
 
64 
;        mov     [FDD_Head],0
 - 
 
65 
;        mov     [FDD_Sector],1
 - 
 
66 
; à®¢¥á⨠४ «¨¡à®¢ªã ¨ ¯®¨áª ­ã«¥¢®© ¤®à®¦ª¨
 - 
 
67 
        call    RecalibrateFDD
 - 
 
68 
        call    SeekTrack
 - 
 
69 
        ret
 - 
 
70 
 
 - 
 
71 
flp_readsector:
 - 
 
72 
        call    flp_initialization
- 
 
73 
; à®ç¨â âì ᥪâ®à
 - 
 
74 
        call    ReadSectWithRetr
 - 
 
75 
;        call  ReadSector
 - 
 
76 
;        cmp     [FDC_Status],0
 - 
 
77 
;        jne     @@SectorNotFound
 - 
 
78 
        mov [fdc_irq_func],fdc_null
 - 
 
79 
;        call    FDDMotorOFF
 - 
 
80 
        ret
 - 
 
81 
 
 - 
 
82 
flp_writesector:
 - 
 
83 
        call    flp_initialization
- 
 
84 
; ‡ ¯¨á âì ᥪâ®à
 - 
 
85 
        call    WriteSectWithRetr
 - 
 
86 
;        call    WriteSector
 - 
 
87 
;        cmp     [FDC_Status],0
 - 
 
88 
;        jne     @@SectorNotFound
 - 
 
89 
        mov [fdc_irq_func],fdc_null
 - 
 
90 
;        call    FDDMotorOFF
 - 
 
91 
        ret
 - 
 
92 
 
 - 
 
93 
@@DiskNotFound:
 - 
 
94 
        ret
 - 
 
95 
@@SectorNotFound:
 - 
 
96 
        ret
 - 
 
97 
 
 30 
 
98 
; Š®¤ë § ¢¥à襭¨ï ®¯¥à æ¨¨ á ª®­â஫«¥à®¬ (FDC_Status)
 31 
; Êîäû çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì (FDC_Status)
99 
FDC_Normal         equ 0 ;­®à¬ «ì­®¥ § ¢¥à襭¨¥
 32 
FDC_Normal         equ 0 ;íîðìàëüíîå çàâåðøåíèå
100 
FDC_TimeOut        equ 1 ;®è¨¡ª  â ©¬- ãâ 
 33 
FDC_TimeOut        equ 1 ;îøèáêà òàéì-àóòà
101 
FDC_DiskNotFound   equ 2 ;¢ ¤¨áª®¢®¤¥ ­¥â ¤¨áª 
 34 
FDC_DiskNotFound   equ 2 ;â äèñêîâîäå íåò äèñêà
102 
FDC_TrackNotFound  equ 3 ;¤®à®¦ª  ­¥ ­ ©¤¥­ 
 35 
FDC_TrackNotFound  equ 3 ;äîðîæêà íå íàéäåíà
103 
FDC_SectorNotFound equ 4 ;ᥪâ®à ­¥ ­ ©¤¥­
 36 
FDC_SectorNotFound equ 4 ;ñåêòîð íå íàéäåí
104 
 
 37 
 
105 
; Œ ªá¨¬ «ì­ë¥ §­ ç¥­¨ï ª®®à¤¨­ â ᥪâ®à  (§ ¤ ­­ë¥
 38 
; Ìàêñèìàëüíûå çíà÷åíèÿ êîîðäèíàò ñåêòîðà (çàäàííûå
106 
; §­ ç¥­¨ï ᮮ⢥âáâ¢ãîâ ¯ à ¬¥âà ¬ áâ ­¤ àâ­®£®
 39 
; çíà÷åíèÿ ñîîòâåòñòâóþò ïàðàìåòðàì ñòàíäàðòíîãî
107 
; âà¥å¤î©¬®¢®£® £¨¡ª®£® ¤¨áª  ®¡ê¥¬®¬ 1,44 Œ¡)
 40 
; òðåõäþéìîâîãî ãèáêîãî äèñêà îáúåìîì 1,44 Ìá)
108 
MAX_Track   equ 79
 41 
MAX_Track   equ 79
109 
MAX_Head    equ  1
 42 
MAX_Head    equ  1
Line 110... Line 43...
110 
MAX_Sector  equ 18
 43 
MAX_Sector  equ 18
111 
 
 44 
 
112 
; ‘ç¥â稪 ⨪®¢ â ©¬¥à 
 45 
; Ñ÷åò÷èê òèêîâ òàéìåðà
113 
TickCounter dd ?
 46 
TickCounter dd ?
114 
; Š®¤ § ¢¥à襭¨ï ®¯¥à æ¨¨ á ª®­â஫«¥à®¬ ƒŒ„
 47 
; Êîä çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì ÍÃÌÄ
115 
FDC_Status  DB ?
 48 
FDC_Status  DB ?
116 
; ”« £ ¯à¥à뢠­¨ï ®â ƒŒ„
 49 
; Ôëàã ïðåðûâàíèÿ îò ÍÃÌÄ
117 
FDD_IntFlag DB ?
 50 
FDD_IntFlag DB ?
118 
; Œ®¬¥­â ­ ç «  ¯®á«¥¤­¥© ®¯¥à æ¨¨ á ƒŒ„
 51 
; Ìîìåíò íà÷àëà ïîñëåäíåé îïåðàöèè ñ ÍÃÌÄ
119 
FDD_Time    DD ?
 52 
FDD_Time    DD ?
120 
; ®¬¥à ¤¨áª®¢®¤ 
 53 
; Íîìåð äèñêîâîäà
121 
FDD_Type    db 0
 54 
FDD_Type    db 0
122 
; Š®®à¤¨­ âë ᥪâ®à 
 55 
; Êîîðäèíàòû ñåêòîðà
123 
FDD_Track   DB ?
 56 
FDD_Track   DB ?
Line 124... Line 57...
124 
FDD_Head    DB ?
 57 
FDD_Head    DB ?
125 
FDD_Sector  DB ?
 58 
FDD_Sector  DB ?
126 
 
 59 
 
127 
; «®ª १ã«ìâ â  ®¯¥à æ¨¨
 60 
; Áëîê ðåçóëüòàòà îïåðàöèè
128 
FDC_ST0 DB ?
 61 
FDC_ST0 DB ?
129 
FDC_ST1 DB ?
 62 
FDC_ST1 DB ?
130 
FDC_ST2 DB ?
 63 
FDC_ST2 DB ?
131 
FDC_C   DB ?
 64 
FDC_C   DB ?
132 
FDC_H   DB ?
 65 
FDC_H   DB ?
133 
FDC_R   DB ?
 66 
FDC_R   DB ?
134 
FDC_N   DB ?
 67 
FDC_N   DB ?
135 
; ‘ç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï
 68 
; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíèÿ
136 
ReadRepCounter  DB ?
 69 
ReadRepCounter  DB ?
137 
; ‘ç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ४ «¨¡à®¢ª¨
 70 
; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
138 
RecalRepCounter DB ?
 71 
RecalRepCounter DB ?
139 
; Ž¡« áâì ¯ ¬ï⨠¤«ï åà ­¥­¨ï ¯à®ç¨â ­­®£® ᥪâ®à 
 72 
; Îáëàñòü ïàìÿòè äëÿ õðàíåíèÿ ïðî÷èòàííîãî ñåêòîðà
Line 140... Line 73...
140 
;FDD_DataBuffer:  times 512 db 0   ;DB 512 DUP (?)
 73 
;FDD_DataBuffer:  times 512 db 0   ;DB 512 DUP (?)
141 
fdd_motor_status db 0
 74 
fdd_motor_status db 0
142 
timer_fdd_motor  dd 0
 75 
timer_fdd_motor  dd 0
143 
 
 76 
 
144 
;*************************************
 77 
;*************************************
145 
;* ˆˆ–ˆ€‹ˆ‡€–ˆŸ …†ˆŒ€ „ „‹Ÿ ƒŒ„ *
 78 
;* ÈÍÈÖÈÀËÈÇÀÖÈß ÐÅÆÈÌÀ ÏÄÏ ÄËß ÍÃÌÄ *
146 
;*************************************
 79 
;*************************************
Line 170... Line 103...
170 
        out 0xa,al
 103 
        out 0xa,al
171 
        popad
 104 
        popad
172 
        ret
 105 
        ret
Line 173... Line 106...
173 
 
 106 
 
174 
;***********************************
 107 
;***********************************
175 
;* ‡€ˆ‘€’œ €‰’ ‚ Ž’ „€›• FDC *
 108 
;* ÇÀÏÈÑÀÒÜ ÁÀÉÒ Â ÏÎÐÒ ÄÀÍÍÛÕ FDC *
176 
;*  à ¬¥âàë:                      *
 109 
;* Ïàðàìåòðû:                      *
177 
;* AL - ¢ë¢®¤¨¬ë© ¡ ©â.            *
 110 
;* AL - âûâîäèìûé áàéò.            *
178 
;***********************************
 111 
;***********************************
179 
FDCDataOutput:
 112 
FDCDataOutput:
180 
;        pusha
 113 
;        pusha
181 
        push ax cx dx
 114 
        push ax cx dx
182 
        mov     AH,AL     ;§ ¯®¬­¨âì ¡ ©â ¢ AH
 115 
        mov     AH,AL     ;çàïîìíèòü áàéò â AH
183 
; ‘¡à®á¨âì ¯¥à¥¬¥­­ãî á®áâ®ï­¨ï ª®­â஫«¥à 
 116 
; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà
184 
        mov     [FDC_Status],FDC_Normal
 117 
        mov     [FDC_Status],FDC_Normal
185 
; à®¢¥à¨âì £®â®¢­®áâì ª®­â஫«¥à  ª ¯à¨¥¬ã ¤ ­­ëå
 118 
; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïðèåìó äàííûõ
186 
        mov     DX,3F4h   ;(¯®àâ á®áâ®ï­¨ï FDC)
 119 
        mov     DX,3F4h   ;(ïîðò ñîñòîÿíèÿ FDC)
187 
        xor     CX,CX     ;ãáâ ­®¢¨âì áç¥â稪 â ©¬- ãâ 
 120 
        xor     CX,CX     ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà
188 
@@TestRS:
 121 
@@TestRS:
189 
        in      AL,DX     ;¯à®ç¨â âì ॣ¨áâà RS
 122 
        in      AL,DX     ;ïðî÷èòàòü ðåãèñòð RS
190 
        and     AL,0C0h   ;¢ë¤¥«¨âì à §àï¤ë 6 ¨ 7
 123 
        and     AL,0C0h   ;âûäåëèòü ðàçðÿäû 6 è 7
191 
        cmp     AL,80h    ;¯à®¢¥à¨âì à §àï¤ë 6 ¨ 7
 124 
        cmp     AL,80h    ;ïðîâåðèòü ðàçðÿäû 6 è 7
192 
        je      @@OutByteToFDC
 125 
        je      @@OutByteToFDC
193 
        loop    @@TestRS
 126 
        loop    @@TestRS
194 
; Žè¨¡ª  â ©¬- ãâ 
 127 
; Îøèáêà òàéì-àóòà
195 
        mov     [FDC_Status],FDC_TimeOut
 128 
        mov     [FDC_Status],FDC_TimeOut
196 
        jmp @@End_5
 129 
        jmp @@End_5
197 
; ‚뢥á⨠¡ ©â ¢ ¯®àâ ¤ ­­ëå
 130 
; Âûâåñòè áàéò â ïîðò äàííûõ
198 
@@OutByteToFDC:
 131 
@@OutByteToFDC:
199 
        inc     DX
 132 
        inc     DX
200 
        mov     AL,AH
 133 
        mov     AL,AH
201 
        out     DX,AL
 134 
        out     DX,AL
202 
@@End_5:
 135 
@@End_5:
203 
;        popa
 136 
;        popa
204 
        pop dx cx ax
137 
        pop dx cx ax
Line 205... Line 138...
205 
        ret
 138 
        ret
206 
 
 139 
 
207 
;******************************************
 140 
;******************************************
208 
;*   Ž—ˆ’€’œ €‰’ ˆ‡ Ž’€ „€›• FDC   *
 141 
;*   ÏÐÎ×ÈÒÀÒÜ ÁÀÉÒ ÈÇ ÏÎÐÒÀ ÄÀÍÍÛÕ FDC   *
209 
;* à®æ¥¤ãà  ­¥ ¨¬¥¥â ¢å®¤­ëå ¯ à ¬¥â஢. *
 142 
;* Ïðîöåäóðà íå èìååò âõîäíûõ ïàðàìåòðîâ. *
210 
;* ‚ë室­ë¥ ¤ ­­ë¥:                       *
 143 
;* Âûõîäíûå äàííûå:                       *
211 
;* AL - áç¨â ­­ë© ¡ ©â.                   *
 144 
;* AL - ñ÷èòàííûé áàéò.                   *
212 
;******************************************
 145 
;******************************************
213 
FDCDataInput:
 146 
FDCDataInput:
214 
        push    ECX
 147 
        push    ECX
215 
        push    DX
 148 
        push    DX
216 
; ‘¡à®á¨âì ¯¥à¥¬¥­­ãî á®áâ®ï­¨ï ª®­â஫«¥à 
 149 
; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà
217 
        mov     [FDC_Status],FDC_Normal
 150 
        mov     [FDC_Status],FDC_Normal
218 
; à®¢¥à¨âì £®â®¢­®áâì ª®­â஫«¥à  ª ¯¥à¥¤ ç¥ ¤ ­­ëå
 151 
; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïåðåäà÷å äàííûõ
219 
        mov     DX,3F4h   ;(¯®àâ á®áâ®ï­¨ï FDC)
 152 
        mov     DX,3F4h   ;(ïîðò ñîñòîÿíèÿ FDC)
220 
        xor     CX,CX     ;ãáâ ­®¢¨âì áç¥â稪 â ©¬- ãâ 
 153 
        xor     CX,CX     ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà
221 
@@TestRS_1:
 154 
@@TestRS_1:
222 
        in      AL,DX     ;¯à®ç¨â âì ॣ¨áâà RS
 155 
        in      AL,DX     ;ïðî÷èòàòü ðåãèñòð RS
223 
        and     AL,0C0h   ;¢ë¤«¨âì à §àï¤ë 6 ¨ 7
 156 
        and     AL,0C0h   ;âûäëèòü ðàçðÿäû 6 è 7
224 
        cmp     AL,0C0h   ;¯à®¢¥à¨âì à §àï¤ë 6 ¨ 7
 157 
        cmp     AL,0C0h   ;ïðîâåðèòü ðàçðÿäû 6 è 7
225 
        je      @@GetByteFromFDC
 158 
        je      @@GetByteFromFDC
226 
        loop    @@TestRS_1
 159 
        loop    @@TestRS_1
227 
; Žè¨¡ª  â ©¬- ãâ 
 160 
; Îøèáêà òàéì-àóòà
228 
        mov     [FDC_Status],FDC_TimeOut
 161 
        mov     [FDC_Status],FDC_TimeOut
229 
        jmp @@End_6
 162 
        jmp @@End_6
230 
; ‚¢¥á⨠¡ ©â ¨§ ¯®àâ  ¤ ­­ëå
 163 
; Ââåñòè áàéò èç ïîðòà äàííûõ
231 
@@GetByteFromFDC:
 164 
@@GetByteFromFDC:
232 
        inc     DX
 165 
        inc     DX
233 
        in      AL,DX
 166 
        in      AL,DX
234 
@@End_6:  pop     DX
 167 
@@End_6:  pop     DX
Line 235... Line 168...
235 
        pop     ECX
 168 
        pop     ECX
236 
        ret
 169 
        ret
237 
 
 170 
 
238 
;*********************************************
 171 
;*********************************************
239 
;* Ž€Ž’—ˆŠ …›‚€ˆŸ Ž’ ŠŽ’Ž‹‹…€ ƒŒ„ *
 - 
 
240 
;*********************************************
 - 
 
241 
FDCInterrupt:
 - 
 
242 
;  §à¥è¨âì ¯à¥à뢠­¨ï
 172 
;* ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ *
243 
;        sti
 173 
;*********************************************
244 
;        push    AX
 - 
 
245 
; “áâ ­®¢¨âì ä« £ ¯à¥à뢠­¨ï
 - 
 
246 
        mov     [FDD_IntFlag],1
 - 
 
247 
; ®á« âì ª®¬ ­¤ã EOI ª®­â஫«¥àã ¯à¥à뢠­¨©
 - 
 
248 
;        mov     AL,20h
 174 
FDCInterrupt:
Line 249... Line 175...
249 
;        out     20h,AL
 175 
; Óñòàíîâèòü ôëàã ïðåðûâàíèÿ
250 
;        pop     AX
 176 
        mov     [FDD_IntFlag],1
251 
        ret
 177 
        ret
252 
 
 178 
 
253 
 
 179 
 
254 
;******************************************
 180 
;******************************************
255 
;* “‘’€Ž‚ˆ’œ Ž‚›‰ Ž€Ž’—ˆŠ …›‚€ˆ‰ *
 181 
;* ÓÑÒÀÍÎÂÈÒÜ ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈÉ *
Line 256... Line 182...
256 
;*             ƒŒ„                       *
 182 
;*             ÍÃÌÄ                       *
257 
;******************************************
 183 
;******************************************
258 
SetUserInterrupts:
 184 
SetUserInterrupts:
259 
         mov     [fdc_irq_func],FDCInterrupt
 185 
         mov     [fdc_irq_func],FDCInterrupt
260 
         ret
 186 
         ret
261 
 
 187 
 
262 
;*******************************************
 188 
;*******************************************
263 
;* Ž†ˆ„€ˆ… …›‚€ˆŸ Ž’ ŠŽ’Ž‹‹…€ ƒŒ„ *
 189 
;* ÎÆÈÄÀÍÈÅ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ *
264 
;*******************************************
 190 
;*******************************************
265 
WaitFDCInterrupt:
 191 
WaitFDCInterrupt:
266 
        pusha
 192 
        pusha
267 
; ‘¡à®á¨âì ¡ ©â á®áâ®ï­¨ï ®¯¥à æ¨¨
 193 
; Ñáðîñèòü áàéò ñîñòîÿíèÿ îïåðàöèè
268 
        mov     [FDC_Status],FDC_Normal
 194 
        mov     [FDC_Status],FDC_Normal
269 
; ‘¡à®á¨âì ä« £ ¯à¥à뢠­¨ï
 195 
; Ñáðîñèòü ôëàã ïðåðûâàíèÿ
270 
        mov     [FDD_IntFlag],0
 196 
        mov     [FDD_IntFlag],0
271 
; Ž¡­ã«¨âì áç¥â稪 ⨪®¢
 197 
; Îáíóëèòü ñ÷åò÷èê òèêîâ
- 
 
 198 
        mov     eax,[timer_ticks]
272 
        mov     eax,[timer_ticks]
 199 
        mov     [TickCounter],eax
273 
        mov     [TickCounter],eax
 200 
; Îæèäàòü óñòàíîâêè ôëàãà ïðåðûâàíèÿ ÍÃÌÄ
274 
; Ž¦¨¤ âì ãáâ ­®¢ª¨ ä« £  ¯à¥à뢠­¨ï ƒŒ„
 201 
@@TestRS_2:
275 
@@TestRS_2:
 202 
        cmp     [FDD_IntFlag],0
276 
        cmp     [FDD_IntFlag],0
 203 
        jnz     @@End_7           ;ïðåðûâàíèå ïðîèçîøëî
277 
        jnz     @@End_7           ;¯à¥à뢠­¨¥ ¯à®¨§®è«®
 204 
        call    change_task
278 
        mov     eax,[timer_ticks]
 205 
        mov     eax,[timer_ticks]
279 
        sub     eax,[TickCounter]
 206 
        sub     eax,[TickCounter]
280 
        cmp     eax,50  ;25   ;5 ;®¦¨¤ âì 5 ⨪®¢
 207 
        cmp     eax,50  ;25   ;5 ;îæèäàòü 5 òèêîâ
281 
        jb      @@TestRS_2
 208 
        jb      @@TestRS_2
Line 282... Line 209...
282 
;        jl      @@TestRS_2
 209 
;        jl      @@TestRS_2
283 
; Žè¨¡ª  â ©¬- ãâ 
 210 
; Îøèáêà òàéì-àóòà
284 
        mov     [FDC_Status],FDC_TimeOut
 211 
        mov     [FDC_Status],FDC_TimeOut
285 
;        mov   [flp_status],0
 212 
;        mov   [flp_status],0
286 
@@End_7:  popa
 213 
@@End_7:  popa
287 
        ret
 214 
        ret
288 
 
 215 
 
289 
;*********************************
 216 
;*********************************
290 
;* ‚Š‹ž—ˆ’œ ŒŽ’Ž „ˆ‘ŠŽ‚Ž„€ "A:" *
 217 
;* ÂÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ "A:" *
291 
;*********************************
 218 
;*********************************
292 
FDDMotorON:
 219 
FDDMotorON:
293 
        pusha
 220 
        pusha
294 
;        cmp     [fdd_motor_status],1
 221 
;        cmp     [fdd_motor_status],1
295 
;        je      fdd_motor_on
 222 
;        je      fdd_motor_on
296 
        mov     al,[flp_number]
 223 
        mov     al,[flp_number]
297 
        cmp     [fdd_motor_status],al
 224 
        cmp     [fdd_motor_status],al
298 
        je      fdd_motor_on
 225 
        je      fdd_motor_on
299 
; à®¨§¢¥á⨠á¡à®á ª®­â஫«¥à  ƒŒ„
 226 
; Ïðîèçâåñòè ñáðîñ êîíòðîëëåðà ÍÃÌÄ
300 
        mov     DX,3F2h ;¯®àâ ã¯à ¢«¥­¨ï ¤¢¨£ â¥«ï¬¨
 227 
        mov     DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
301 
        mov     AL,0
 228 
        mov     AL,0
302 
        out     DX,AL
 229 
        out     DX,AL
303 
; ‚ë¡à âì ¨ ¢ª«îç¨âì ¬®â®à ¤¨áª®¢®¤ 
 230 
; Âûáðàòü è âêëþ÷èòü ìîòîð äèñêîâîäà
304 
        cmp     [flp_number],1
 231 
        cmp     [flp_number],1
305 
        jne     FDDMotorON_B
 232 
        jne     FDDMotorON_B
306 
;        call    FDDMotorOFF_B
 233 
;        call    FDDMotorOFF_B
307 
        mov     AL,1Ch    ; Floppy A
 234 
        mov     AL,1Ch    ; Floppy A
308 
        jmp     FDDMotorON_1
 235 
        jmp     FDDMotorON_1
309 
FDDMotorON_B:
 236 
FDDMotorON_B:
310 
;        call    FDDMotorOFF_A
 237 
;        call    FDDMotorOFF_A
311 
        mov     AL,2Dh    ; Floppy B
 238 
        mov     AL,2Dh    ; Floppy B
- 
 
 239 
FDDMotorON_1:
312 
FDDMotorON_1:
 240 
        out     DX,AL
313 
        out     DX,AL
 241 
; Îáíóëèòü ñ÷åò÷èê òèêîâ
314 
; Ž¡­ã«¨âì áç¥â稪 ⨪®¢
 242 
        mov     eax,[timer_ticks]
315 
        mov     eax,[timer_ticks]
 243 
        mov     [TickCounter],eax
316 
        mov     [TickCounter],eax
 244 
; Îæèäàòü 0,5 ñ
Line 330... Line 258...
330 
        call    save_timer_fdd_motor
 258 
        call    save_timer_fdd_motor
331 
        popa
 259 
        popa
332 
        ret
 260 
        ret
Line 333... Line 261...
333 
 
 261 
 
334 
;*****************************************
 262 
;*****************************************
335 
;*  ‘Ž•€…ˆ… “Š€‡€’…‹Ÿ ‚…Œ…ˆ         *
 263 
;*  ÑÎÕÐÀÍÅÍÈÅ ÓÊÀÇÀÒÅËß ÂÐÅÌÅÍÈ         *
336 
;*****************************************
 264 
;*****************************************
337 
save_timer_fdd_motor:
 265 
save_timer_fdd_motor:
338 
        mov     eax,[timer_ticks]
 266 
        mov     eax,[timer_ticks]
339 
        mov     [timer_fdd_motor],eax
 267 
        mov     [timer_fdd_motor],eax
Line 340... Line 268...
340 
        ret
 268 
        ret
341 
 
 269 
 
342 
;*****************************************
 270 
;*****************************************
343 
;*  Ž‚…Š€ ‡€„…†Šˆ ‚›Š‹ž—…ˆŸ ŒŽ’Ž€  *
 271 
;*  ÏÐÎÂÅÐÊÀ ÇÀÄÅÐÆÊÈ ÂÛÊËÞ×ÅÍÈß ÌÎÒÎÐÀ  *
344 
;*****************************************
 272 
;*****************************************
345 
check_fdd_motor_status:
 273 
check_fdd_motor_status:
346 
        cmp     [fdd_motor_status],0
 274 
        cmp     [fdd_motor_status],0
347 
        je      end_check_fdd_motor_status
 275 
        je      end_check_fdd_motor_status_1
348 
        mov     eax,[timer_ticks]
 276 
        mov     eax,[timer_ticks]
349 
        sub     eax,[timer_fdd_motor]
 277 
        sub     eax,[timer_fdd_motor]
350 
        cmp     eax,500
 278 
        cmp     eax,500
351 
        jb      end_check_fdd_motor_status
 279 
        jb      end_check_fdd_motor_status
- 
 
 280 
        call    FDDMotorOFF
- 
 
 281 
        mov     [fdd_motor_status],0
352 
        call    FDDMotorOFF
 282 
end_check_fdd_motor_status_1:
353 
        mov     [fdd_motor_status],0
 283 
        mov     [flp_status],0
Line 354... Line 284...
354 
end_check_fdd_motor_status:
 284 
end_check_fdd_motor_status:
355 
        ret
 285 
        ret
356 
 
 286 
 
357 
;**********************************
 287 
;**********************************
358 
;* ‚›Š‹ž—ˆ’œ ŒŽ’Ž „ˆ‘ŠŽ‚Ž„€      *
 288 
;* ÂÛÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ      *
359 
;**********************************
 289 
;**********************************
360 
FDDMotorOFF:
 290 
FDDMotorOFF:
Line 367... Line 297...
367 
FDDMotorOFF_1:
 297 
FDDMotorOFF_1:
368 
        call    FDDMotorOFF_B
 298 
        call    FDDMotorOFF_B
369 
FDDMotorOFF_2:
 299 
FDDMotorOFF_2:
370 
        pop     DX
 300 
        pop     DX
371 
        pop     AX
 301 
        pop     AX
372 
        ; á¡à®á ä« £®¢ ª¥è¨à®¢ ­¨ï ¢ á¢ï§¨ á ãáâ à¥¢ ­¨¥¬ ¨­ä®à¬ æ¨¨
 302 
        ; ñáðîñ ôëàãîâ êåøèðîâàíèÿ â ñâÿçè ñ óñòàðåâàíèåì èíôîðìàöèè
373 
        mov    [root_read],0
 303 
        mov    [root_read],0
374 
        mov    [flp_fat],0
 304 
        mov    [flp_fat],0
375 
        ret
 305 
        ret
Line 376... Line 306...
376 
 
 306 
 
377 
FDDMotorOFF_A:
 307 
FDDMotorOFF_A:
378 
        mov     DX,3F2h ;¯®àâ ã¯à ¢«¥­¨ï ¤¢¨£ â¥«ï¬¨
 308 
        mov     DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
379 
        mov     AL,0Ch  ; Floppy A
 309 
        mov     AL,0Ch  ; Floppy A
380 
        out     DX,AL
 310 
        out     DX,AL
Line 381... Line 311...
381 
        ret
 311 
        ret
382 
 
 312 
 
383 
FDDMotorOFF_B:
 313 
FDDMotorOFF_B:
384 
        mov     DX,3F2h ;¯®àâ ã¯à ¢«¥­¨ï ¤¢¨£ â¥«ï¬¨
 314 
        mov     DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
385 
        mov     AL,5h  ; Floppy B
 315 
        mov     AL,5h  ; Floppy B
Line 386... Line 316...
386 
        out     DX,AL
 316 
        out     DX,AL
387 
        ret
 317 
        ret
388 
 
 318 
 
389 
;*******************************
 319 
;*******************************
390 
;* …Š€‹ˆŽ‚Š€ „ˆ‘ŠŽ‚Ž„€ "A:" *
 320 
;* ÐÅÊÀËÈÁÐÎÂÊÀ ÄÈÑÊÎÂÎÄÀ "A:" *
391 
;*******************************
 321 
;*******************************
392 
RecalibrateFDD:
 322 
RecalibrateFDD:
393 
        pusha
 323 
        pusha
394 
        call    save_timer_fdd_motor
 324 
        call    save_timer_fdd_motor
395 
; ®¤ âì ª®¬ ­¤ã "¥ª «¨¡à®¢ª "
 325 
; Ïîäàòü êîìàíäó "Ðåêàëèáðîâêà"
396 
        mov     AL,07h
 326 
        mov     AL,07h
397 
        call    FDCDataOutput
 327 
        call    FDCDataOutput
398 
        mov     AL,00h
 328 
        mov     AL,00h
399 
        call    FDCDataOutput
 329 
        call    FDCDataOutput
400 
; Ž¦¨¤ âì § ¢¥à襭¨ï ®¯¥à æ¨¨
 330 
; Îæèäàòü çàâåðøåíèÿ îïåðàöèè
401 
        call    WaitFDCInterrupt
 331 
        call    WaitFDCInterrupt
402 
;        cmp    [FDC_Status],0
 332 
;        cmp    [FDC_Status],0
403 
;        je    no_fdc_status_error
 333 
;        je    no_fdc_status_error
404 
;        mov   [flp_status],0
 334 
;        mov   [flp_status],0
405 
;no_fdc_status_error:
 335 
;no_fdc_status_error:
Line 406... Line 336...
406 
        call    save_timer_fdd_motor
 336 
        call    save_timer_fdd_motor
407 
        popa
 337 
        popa
408 
        ret
 338 
        ret
409 
 
 339 
 
410 
;*****************************************************
 340 
;*****************************************************
411 
;*                    Žˆ‘Š „ŽŽ†Šˆ                  *
 341 
;*                    ÏÎÈÑÊ ÄÎÐÎÆÊÈ                  *
412 
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥: *
 342 
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: *
413 
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79);                 *
 343 
;* FDD_Track - íîìåð äîðîæêè (0-79);                 *
414 
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1).                   *
 344 
;* FDD_Head - íîìåð ãîëîâêè (0-1).                   *
415 
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status.        *
 345 
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status.        *
416 
;*****************************************************
 346 
;*****************************************************
417 
SeekTrack:
 347 
SeekTrack:
418 
        pusha
 348 
        pusha
419 
        call    save_timer_fdd_motor
 349 
        call    save_timer_fdd_motor
420 
; ®¤ âì ª®¬ ­¤ã "®¨áª"
 350 
; Ïîäàòü êîìàíäó "Ïîèñê"
421 
        mov     AL,0Fh
 351 
        mov     AL,0Fh
422 
        call    FDCDataOutput
 352 
        call    FDCDataOutput
423 
        ; ¥à¥¤ âì ¡ ©â ­®¬¥à  £®«®¢ª¨/­ ª®¯¨â¥«ï
 353 
        ; Ïåðåäàòü áàéò íîìåðà ãîëîâêè/íàêîïèòåëÿ
424 
        mov     AL,[FDD_Head]
 354 
        mov     AL,[FDD_Head]
425 
        shl     AL,2
 355 
        shl     AL,2
426 
        call    FDCDataOutput
 356 
        call    FDCDataOutput
427 
        ; ¥à¥¤ âì ¡ ©â ­®¬¥à  ¤®à®¦ª¨
 357 
        ; Ïåðåäàòü áàéò íîìåðà äîðîæêè
428 
        mov     AL,[FDD_Track]
 358 
        mov     AL,[FDD_Track]
429 
        call    FDCDataOutput
 359 
        call    FDCDataOutput
430 
; Ž¦¨¤ âì § ¢¥à襭¨ï ®¯¥à æ¨¨
 360 
; Îæèäàòü çàâåðøåíèÿ îïåðàöèè
431 
        call    WaitFDCInterrupt
 361 
        call    WaitFDCInterrupt
432 
        cmp     [FDC_Status],FDC_Normal
 362 
        cmp     [FDC_Status],FDC_Normal
433 
        jne     @@Exit
 363 
        jne     @@Exit
434 
; ‘®åà ­¨âì १ã«ìâ â ¯®¨áª 
 364 
; Ñîõðàíèòü ðåçóëüòàò ïîèñêà
435 
        mov     AL,08h
 365 
        mov     AL,08h
436 
        call    FDCDataOutput
 366 
        call    FDCDataOutput
437 
        call    FDCDataInput
 367 
        call    FDCDataInput
438 
        mov     [FDC_ST0],AL
 368 
        mov     [FDC_ST0],AL
439 
        call    FDCDataInput
 369 
        call    FDCDataInput
440 
        mov     [FDC_C],AL
 370 
        mov     [FDC_C],AL
441 
; à®¢¥à¨âì १ã«ìâ â ¯®¨áª 
 371 
; Ïðîâåðèòü ðåçóëüòàò ïîèñêà
442 
        ; ®¨áª § ¢¥à襭?
 372 
        ; Ïîèñê çàâåðøåí?
443 
        test    [FDC_ST0],100000b
 373 
        test    [FDC_ST0],100000b
444 
        je      @@Err
 374 
        je      @@Err
445 
        ; ‡ ¤ ­­ë© â४ ­ ©¤¥­?
 375 
        ; Çàäàííûé òðåê íàéäåí?
446 
        mov     AL,[FDC_C]
 376 
        mov     AL,[FDC_C]
447 
        cmp     AL,[FDD_Track]
 377 
        cmp     AL,[FDD_Track]
448 
        jne     @@Err
 378 
        jne     @@Err
449 
        ; ®¬¥à £®«®¢ª¨ ᮢ¯ ¤ ¥â á § ¤ ­­ë¬?
 379 
        ; Íîìåð ãîëîâêè ñîâïàäàåò ñ çàäàííûì?
450 
        mov     AL,[FDC_ST0]
 380 
        mov     AL,[FDC_ST0]
451 
        and     AL,100b
 381 
        and     AL,100b
452 
        shr     AL,2
 382 
        shr     AL,2
453 
        cmp     AL,[FDD_Head]
 383 
        cmp     AL,[FDD_Head]
454 
        jne     @@Err
 384 
        jne     @@Err
455 
        ; Ž¯¥à æ¨ï § ¢¥à襭  ãᯥ譮
 385 
        ; Îïåðàöèÿ çàâåðøåíà óñïåøíî
456 
        mov     [FDC_Status],FDC_Normal
 386 
        mov     [FDC_Status],FDC_Normal
457 
        jmp @@Exit
 387 
        jmp @@Exit
458 
@@Err:  ; ’४ ­¥ ­ ©¤¥­
 388 
@@Err:  ; Òðåê íå íàéäåí
459 
        mov     [FDC_Status],FDC_TrackNotFound
 389 
        mov     [FDC_Status],FDC_TrackNotFound
460 
;        mov   [flp_status],0
 390 
;        mov   [flp_status],0
Line 461... Line 391...
461 
@@Exit:
 391 
@@Exit:
462 
        call    save_timer_fdd_motor
 392 
        call    save_timer_fdd_motor
463 
        popa
 393 
        popa
464 
        ret
 394 
        ret
465 
 
 395 
 
466 
;*******************************************************
 396 
;*******************************************************
467 
;*               —’…ˆ… ‘…Š’Ž€ „€›•                 *
 397 
;*               ×ÒÅÍÈÅ ÑÅÊÒÎÐÀ ÄÀÍÍÛÕ                 *
468 
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥:   *
 398 
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå:   *
469 
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79);                   *
 399 
;* FDD_Track - íîìåð äîðîæêè (0-79);                   *
470 
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1);                     *
 400 
;* FDD_Head - íîìåð ãîëîâêè (0-1);                     *
471 
;* FDD_Sector - ­®¬¥à ᥪâ®à  (1-18).                  *
 401 
;* FDD_Sector - íîìåð ñåêòîðà (1-18).                  *
472 
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status.          *
 402 
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status.          *
473 
;* ‚ á«ãç ¥ ãᯥ譮£® ¢ë¯®«­¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï       *
 403 
;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè ÷òåíèÿ       *
474 
;* ᮤ¥à¦¨¬®¥ ᥪâ®à  ¡ã¤¥â § ­¥á¥­® ¢ FDD_DataBuffer. *
 404 
;* ñîäåðæèìîå ñåêòîðà áóäåò çàíåñåíî â FDD_DataBuffer. *
475 
;*******************************************************
 405 
;*******************************************************
476 
ReadSector:
 406 
ReadSector:
477 
        pushad
 407 
        pushad
478 
        call    save_timer_fdd_motor
 408 
        call    save_timer_fdd_motor
479 
; “áâ ­®¢¨âì ᪮à®áâì ¯¥à¥¤ ç¨ 500 Š¡ ©â/á
 409 
; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ
480 
        mov     AX,0
 410 
        mov     AX,0
481 
        mov     DX,03F7h
 411 
        mov     DX,03F7h
482 
        out     DX,AL
 412 
        out     DX,AL
483 
; ˆ­¨æ¨ «¨§¨à®¢ âì ª ­ « ¯àאַ£® ¤®áâ㯠 ª ¯ ¬ïâ¨
 413 
; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè
484 
        mov     [dmamode],0x46
 414 
        mov     [dmamode],0x46
485 
        call    Init_FDC_DMA
 415 
        call    Init_FDC_DMA
486 
; ®¤ âì ª®¬ ­¤ã "—⥭¨¥ ¤ ­­ëå"
 416 
; Ïîäàòü êîìàíäó "×òåíèå äàííûõ"
487 
        mov     AL,0E6h  ;ç⥭¨¥ ¢ ¬ã«ìâ¨â४®¢®¬ ०¨¬¥
 417 
        mov     AL,0E6h  ;÷òåíèå â ìóëüòèòðåêîâîì ðåæèìå
488 
        call    FDCDataOutput
 418 
        call    FDCDataOutput
489 
        mov     AL,[FDD_Head]
 419 
        mov     AL,[FDD_Head]
490 
        shl     AL,2
 420 
        shl     AL,2
491 
        call    FDCDataOutput
 421 
        call    FDCDataOutput
492 
        mov     AL,[FDD_Track]
 422 
        mov     AL,[FDD_Track]
493 
        call    FDCDataOutput
 423 
        call    FDCDataOutput
494 
        mov     AL,[FDD_Head]
 424 
        mov     AL,[FDD_Head]
495 
        call    FDCDataOutput
 425 
        call    FDCDataOutput
496 
        mov     AL,[FDD_Sector]
 426 
        mov     AL,[FDD_Sector]
497 
        call    FDCDataOutput
 427 
        call    FDCDataOutput
498 
        mov     AL,2    ;ª®¤ à §¬¥à  ᥪâ®à  (512 ¡ ©â)
 428 
        mov     AL,2    ;êîä ðàçìåðà ñåêòîðà (512 áàéò)
499 
        call    FDCDataOutput
 429 
        call    FDCDataOutput
500 
        mov     AL,18  ;+1; 3Fh  ;ç¨á«® ᥪâ®à®¢ ­  ¤®à®¦ª¥
 430 
        mov     AL,18  ;+1; 3Fh  ;÷èñëî ñåêòîðîâ íà äîðîæêå
501 
        call    FDCDataOutput
 - 
 
502 
        mov     AL,1Bh  ;§­ ç¥­¨¥ GPL
 431 
        call    FDCDataOutput
503 
        call    FDCDataOutput
 432 
        mov     AL,1Bh  ;çíà÷åíèå GPL
504 
        mov     AL,0FFh ;§­ ç¥­¨¥ DTL
 433 
        call    FDCDataOutput
505 
        call    FDCDataOutput
 434 
        mov     AL,0FFh ;çíà÷åíèå DTL
506 
 
 435 
        call    FDCDataOutput
507 
; Ž¦¨¤ ¥¬ ¯à¥à뢠­¨¥ ¯® § ¢¥à襭¨¨ ®¯¥à æ¨¨
 436 
; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè
508 
        call    WaitFDCInterrupt
 437 
        call    WaitFDCInterrupt
509 
        cmp     [FDC_Status],FDC_Normal
 438 
        cmp     [FDC_Status],FDC_Normal
510 
        jne     @@Exit_1
 439 
        jne     @@Exit_1
511 
; ‘ç¨â뢠¥¬ áâ âãá § ¢¥à襭¨ï ®¯¥à æ¨¨
 440 
; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè
Line 520... Line 449...
520 
        call    save_timer_fdd_motor
 449 
        call    save_timer_fdd_motor
521 
        popad
 450 
        popad
522 
        ret
 451 
        ret
Line 523... Line 452...
523 
 
 452 
 
524 
;*******************************************************
 453 
;*******************************************************
525 
;*   —’…ˆ… ‘…Š’Ž€ (‘ Ž‚’Ž…ˆ…Œ Ž…€–ˆˆ ˆ ‘Ž…)  *
 454 
;*   ×ÒÅÍÈÅ ÑÅÊÒÎÐÀ (Ñ ÏÎÂÒÎÐÅÍÈÅÌ ÎÏÅÐÀÖÈÈ ÏÐÈ ÑÁÎÅ)  *
526 
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥:   *
 455 
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå:   *
527 
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79);                   *
 456 
;* FDD_Track - íîìåð äîðîæêè (0-79);                   *
528 
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1);                     *
 457 
;* FDD_Head - íîìåð ãîëîâêè (0-1);                     *
529 
;* FDD_Sector - ­®¬¥à ᥪâ®à  (1-18).                  *
 458 
;* FDD_Sector - íîìåð ñåêòîðà (1-18).                  *
530 
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status.          *
 459 
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status.          *
531 
;* ‚ á«ãç ¥ ãᯥ譮£® ¢ë¯®«­¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï       *
 460 
;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè ÷òåíèÿ       *
532 
;* ᮤ¥à¦¨¬®¥ ᥪâ®à  ¡ã¤¥â § ­¥á¥­® ¢ FDD_DataBuffer. *
 461 
;* ñîäåðæèìîå ñåêòîðà áóäåò çàíåñåíî â FDD_DataBuffer. *
533 
;*******************************************************
 462 
;*******************************************************
534 
ReadSectWithRetr:
 463 
ReadSectWithRetr:
535 
        pusha
 464 
        pusha
536 
; Ž¡­ã«¨âì áç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ४ «¨¡à®¢ª¨
 465 
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
537 
        mov     [RecalRepCounter],0
 466 
        mov     [RecalRepCounter],0
538 
@@TryAgain:
 467 
@@TryAgain:
539 
; Ž¡­ã«¨âì áç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï
 468 
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíèÿ
540 
        mov     [ReadRepCounter],0
 469 
        mov     [ReadRepCounter],0
541 
@@ReadSector_1:
 470 
@@ReadSector_1:
542 
        call    ReadSector
 471 
        call    ReadSector
543 
        cmp     [FDC_Status],0
 472 
        cmp     [FDC_Status],0
544 
        je      @@Exit_2
 473 
        je      @@Exit_2
545 
        cmp     [FDC_Status],1
 474 
        cmp     [FDC_Status],1
546 
        je      @@Err_3
475 
        je      @@Err_3
547 
        ; ’஥ªà â­®¥ ¯®¢â®à¥­¨¥ ç⥭¨ï
 476 
        ; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíèÿ
548 
        inc     [ReadRepCounter]
 477 
        inc     [ReadRepCounter]
549 
        cmp     [ReadRepCounter],3
 478 
        cmp     [ReadRepCounter],3
550 
        jb      @@ReadSector_1
 479 
        jb      @@ReadSector_1
551 
        ; ’஥ªà â­®¥ ¯®¢â®à¥­¨¥ ४ «¨¡à®¢ª¨
 480 
        ; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè
552 
        call    RecalibrateFDD
 481 
        call    RecalibrateFDD
553 
        call    SeekTrack
 482 
        call    SeekTrack
554 
        inc     [RecalRepCounter]
 483 
        inc     [RecalRepCounter]
555 
        cmp     [RecalRepCounter],3
 484 
        cmp     [RecalRepCounter],3
Line 562... Line 491...
562 
        mov   [flp_status],0
 491 
        mov   [flp_status],0
563 
        popa
 492 
        popa
564 
        ret
 493 
        ret
Line 565... Line 494...
565 
 
 494 
 
566 
;*******************************************************
 495 
;*******************************************************
567 
;*               ‡€ˆ‘œ ‘…Š’Ž€ „€›•                 *
 496 
;*               ÇÀÏÈÑÜ ÑÅÊÒÎÐÀ ÄÀÍÍÛÕ                 *
568 
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥:   *
 497 
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå:   *
569 
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79);                   *
 498 
;* FDD_Track - íîìåð äîðîæêè (0-79);                   *
570 
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1);                     *
 499 
;* FDD_Head - íîìåð ãîëîâêè (0-1);                     *
571 
;* FDD_Sector - ­®¬¥à ᥪâ®à  (1-18).                  *
 500 
;* FDD_Sector - íîìåð ñåêòîðà (1-18).                  *
572 
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status.          *
 501 
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status.          *
573 
;* ‚ á«ãç ¥ ãᯥ譮£® ¢ë¯®«­¥­¨ï ®¯¥à æ¨¨ § ¯¨á¨       *
 502 
;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè çàïèñè       *
574 
;* ᮤ¥à¦¨¬®¥ FDD_DataBuffer ¡ã¤¥â § ­¥á¥­® ¢ ᥪâ®à.  *
 503 
;* ñîäåðæèìîå FDD_DataBuffer áóäåò çàíåñåíî â ñåêòîð.  *
575 
;*******************************************************
 504 
;*******************************************************
576 
WriteSector:
 505 
WriteSector:
577 
        pushad
 506 
        pushad
578 
        call    save_timer_fdd_motor
 507 
        call    save_timer_fdd_motor
579 
; “áâ ­®¢¨âì ᪮à®áâì ¯¥à¥¤ ç¨ 500 Š¡ ©â/á
 508 
; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ
580 
        mov     AX,0
 509 
        mov     AX,0
581 
        mov     DX,03F7h
 510 
        mov     DX,03F7h
582 
        out     DX,AL
 511 
        out     DX,AL
583 
; ˆ­¨æ¨ «¨§¨à®¢ âì ª ­ « ¯àאַ£® ¤®áâ㯠 ª ¯ ¬ïâ¨
 512 
; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè
584 
        mov     [dmamode],0x4A
 513 
        mov     [dmamode],0x4A
585 
        call    Init_FDC_DMA
 514 
        call    Init_FDC_DMA
586 
; ®¤ âì ª®¬ ­¤ã "‡ ¯¨áì ¤ ­­ëå"
 515 
; Ïîäàòü êîìàíäó "Çàïèñü äàííûõ"
587 
        mov     AL,0xC5  ;0x45  ;§ ¯¨áì ¢ ¬ã«ìâ¨â४®¢®¬ ०¨¬¥
 516 
        mov     AL,0xC5  ;0x45  ;çàïèñü â ìóëüòèòðåêîâîì ðåæèìå
588 
        call    FDCDataOutput
 517 
        call    FDCDataOutput
589 
        mov     AL,[FDD_Head]
 518 
        mov     AL,[FDD_Head]
590 
        shl     AL,2
 519 
        shl     AL,2
591 
        call    FDCDataOutput
 520 
        call    FDCDataOutput
592 
        mov     AL,[FDD_Track]
 521 
        mov     AL,[FDD_Track]
593 
        call    FDCDataOutput
 522 
        call    FDCDataOutput
594 
        mov     AL,[FDD_Head]
 523 
        mov     AL,[FDD_Head]
595 
        call    FDCDataOutput
 524 
        call    FDCDataOutput
596 
        mov     AL,[FDD_Sector]
 525 
        mov     AL,[FDD_Sector]
597 
        call    FDCDataOutput
 526 
        call    FDCDataOutput
598 
        mov     AL,2    ;ª®¤ à §¬¥à  ᥪâ®à  (512 ¡ ©â)
 527 
        mov     AL,2    ;êîä ðàçìåðà ñåêòîðà (512 áàéò)
599 
        call    FDCDataOutput
 528 
        call    FDCDataOutput
600 
        mov     AL,18; 3Fh  ;ç¨á«® ᥪâ®à®¢ ­  ¤®à®¦ª¥
 529 
        mov     AL,18; 3Fh  ;÷èñëî ñåêòîðîâ íà äîðîæêå
601 
        call    FDCDataOutput
 530 
        call    FDCDataOutput
602 
        mov     AL,1Bh  ;§­ ç¥­¨¥ GPL
 531 
        mov     AL,1Bh  ;çíà÷åíèå GPL
603 
        call    FDCDataOutput
 532 
        call    FDCDataOutput
604 
        mov     AL,0FFh ;§­ ç¥­¨¥ DTL
 533 
        mov     AL,0FFh ;çíà÷åíèå DTL
605 
        call    FDCDataOutput
 - 
 
606 
 
 534 
        call    FDCDataOutput
607 
; Ž¦¨¤ ¥¬ ¯à¥à뢠­¨¥ ¯® § ¢¥à襭¨¨ ®¯¥à æ¨¨
 535 
; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè
608 
        call    WaitFDCInterrupt
 536 
        call    WaitFDCInterrupt
609 
        cmp     [FDC_Status],FDC_Normal
 537 
        cmp     [FDC_Status],FDC_Normal
610 
        jne     @@Exit_3
 538 
        jne     @@Exit_3
611 
; ‘ç¨â뢠¥¬ áâ âãá § ¢¥à襭¨ï ®¯¥à æ¨¨
 539 
; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè
612 
        call    GetStatusInfo
 540 
        call    GetStatusInfo
613 
        test    [FDC_ST0],11000000b  ;11011000b
 541 
        test    [FDC_ST0],11000000b  ;11011000b
614 
        jnz     @@Err_2
 542 
        jnz     @@Err_2
615 
        mov     [FDC_Status],FDC_Normal
 543 
        mov     [FDC_Status],FDC_Normal
Line 619... Line 547...
619 
        call    save_timer_fdd_motor
 547 
        call    save_timer_fdd_motor
620 
        popad
 548 
        popad
621 
        ret
 549 
        ret
Line 622... Line 550...
622 
 
 550 
 
623 
;*******************************************************
 551 
;*******************************************************
624 
;*   ‡€ˆ‘œ ‘…Š’Ž€ (‘ Ž‚’Ž…ˆ…Œ Ž…€–ˆˆ ˆ ‘Ž…)  *
 552 
;*   ÇÀÏÈÑÜ ÑÅÊÒÎÐÀ (Ñ ÏÎÂÒÎÐÅÍÈÅÌ ÎÏÅÐÀÖÈÈ ÏÐÈ ÑÁÎÅ)  *
625 
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥:   *
 553 
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå:   *
626 
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79);                   *
 554 
;* FDD_Track - íîìåð äîðîæêè (0-79);                   *
627 
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1);                     *
 555 
;* FDD_Head - íîìåð ãîëîâêè (0-1);                     *
628 
;* FDD_Sector - ­®¬¥à ᥪâ®à  (1-18).                  *
 556 
;* FDD_Sector - íîìåð ñåêòîðà (1-18).                  *
629 
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status.          *
 557 
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status.          *
630 
;* ‚ á«ãç ¥ ãᯥ譮£® ¢ë¯®«­¥­¨ï ®¯¥à æ¨¨ § ¯¨á¨       *
 558 
;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè çàïèñè       *
631 
;* ᮤ¥à¦¨¬®¥ FDD_DataBuffer ¡ã¤¥â § ­¥á¥­® ¢ ᥪâ®à.  *
 559 
;* ñîäåðæèìîå FDD_DataBuffer áóäåò çàíåñåíî â ñåêòîð.  *
632 
;*******************************************************
 560 
;*******************************************************
633 
WriteSectWithRetr:
 561 
WriteSectWithRetr:
634 
        pusha
 562 
        pusha
635 
; Ž¡­ã«¨âì áç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ४ «¨¡à®¢ª¨
 563 
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
636 
        mov     [RecalRepCounter],0
 564 
        mov     [RecalRepCounter],0
637 
@@TryAgain_1:
 565 
@@TryAgain_1:
638 
; Ž¡­ã«¨âì áç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï
 566 
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíèÿ
639 
        mov     [ReadRepCounter],0
 567 
        mov     [ReadRepCounter],0
640 
@@WriteSector_1:
 568 
@@WriteSector_1:
641 
        call    WriteSector
 569 
        call    WriteSector
642 
        cmp     [FDC_Status],0
 570 
        cmp     [FDC_Status],0
643 
        je      @@Exit_4
 571 
        je      @@Exit_4
644 
        cmp     [FDC_Status],1
 572 
        cmp     [FDC_Status],1
645 
        je      @@Err_4
 573 
        je      @@Err_4
646 
        ; ’஥ªà â­®¥ ¯®¢â®à¥­¨¥ ç⥭¨ï
 574 
        ; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíèÿ
647 
        inc     [ReadRepCounter]
 575 
        inc     [ReadRepCounter]
648 
        cmp     [ReadRepCounter],3
 576 
        cmp     [ReadRepCounter],3
649 
        jb      @@WriteSector_1
 577 
        jb      @@WriteSector_1
650 
        ; ’஥ªà â­®¥ ¯®¢â®à¥­¨¥ ४ «¨¡à®¢ª¨
 578 
        ; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè
651 
        call    RecalibrateFDD
 579 
        call    RecalibrateFDD
652 
        call    SeekTrack
 580 
        call    SeekTrack
653 
        inc     [RecalRepCounter]
 581 
        inc     [RecalRepCounter]
654 
        cmp     [RecalRepCounter],3
 582 
        cmp     [RecalRepCounter],3
Line 660... Line 588...
660 
        mov   [flp_status],0
 588 
        mov   [flp_status],0
661 
        popa
 589 
        popa
662 
        ret
 590 
        ret
Line 663... Line 591...
663 
 
 591 
 
664 
;*********************************************
 592 
;*********************************************
665 
;* Ž‹“—ˆ’œ ˆ”ŽŒ€–ˆž Ž …‡“‹œ’€’… Ž…€–ˆˆ *
 593 
;* ÏÎËÓ×ÈÒÜ ÈÍÔÎÐÌÀÖÈÞ Î ÐÅÇÓËÜÒÀÒÅ ÎÏÅÐÀÖÈÈ *
666 
;*********************************************
 594 
;*********************************************
667 
GetStatusInfo:
 595 
GetStatusInfo:
668 
        push    AX
 596 
        push    AX
669 
        call    FDCDataInput
 597 
        call    FDCDataInput