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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
593 | mikedld | 2 | ;; ;; |
2540 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
431 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; ;; |
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593 | mikedld | 7 | ;; System service for filesystem call ;; |
8 | ;; (C) 2004 Ville Turjanmaa, License: GPL ;; |
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9 | ;; 29.04.2006 Elimination of hangup after the ;; |
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10 | ;; expiration hd_wait_timeout (for LBA) - Mario79 ;; |
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431 | serge | 11 | ;; 15.01.2005 get file size/attr/date, ;; |
12 | ;; file_append (only for hd) - ATV ;; |
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593 | mikedld | 13 | ;; 23.11.2004 test if hd/partition is set - ATV ;; |
14 | ;; 18.11.2004 get_disk_info and more error codes - ATV ;; |
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15 | ;; 08.11.2004 expand_pathz and rename (only for hd) - ATV ;; |
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16 | ;; 20.10.2004 Makedir/Removedir (only for hd) - ATV ;; |
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17 | ;; ;; |
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431 | serge | 18 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ha | 19 | |
2540 | hidnplayr | 20 | $Revision $ |
593 | mikedld | 21 | |
22 | |||
1 | ha | 23 | iglobal |
2382 | hidnplayr | 24 | dir0: |
25 | db 'HARDDISK ' |
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1 | ha | 26 | db 'RAMDISK ' |
27 | db 'FLOPPYDISK ' |
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28 | db 0 |
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29 | |||
2382 | hidnplayr | 30 | dir1: |
31 | db 'FIRST ' |
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1 | ha | 32 | db 'SECOND ' |
33 | db 'THIRD ' |
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34 | db 'FOURTH ' |
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35 | db 0 |
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36 | |||
37 | not_select_IDE db 0 |
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38 | |||
2382 | hidnplayr | 39 | hd_address_table: |
40 | dd 0x1f0,0x00,0x1f0,0x10 |
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1 | ha | 41 | dd 0x170,0x00,0x170,0x10 |
42 | endg |
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43 | |||
74 | mario79 | 44 | file_system: |
45 | |||
1 | ha | 46 | ; IN: |
47 | ; |
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133 | diamond | 48 | ; eax = 0 ; read file /RamDisk/First 6 |
1 | ha | 49 | ; eax = 8 ; lba read |
50 | ; eax = 15 ; get_disk_info |
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51 | ; |
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52 | ; OUT: |
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53 | ; |
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54 | ; eax = 0 : read ok |
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61 | halyavin | 55 | ; eax = 1 : no hd base and/or partition defined |
71 | diamond | 56 | ; eax = 2 : function is unsupported for this FS |
1 | ha | 57 | ; eax = 3 : unknown FS |
58 | ; eax = 4 : partition not defined at hd |
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59 | ; eax = 5 : file not found |
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60 | ; eax = 6 : end of file |
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61 | ; eax = 7 : memory pointer not in application area |
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62 | ; eax = 8 : disk full |
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63 | ; eax = 9 : fat table corrupted |
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64 | ; eax = 10 : access denied |
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83 | diamond | 65 | ; eax = 11 : disk error |
1 | ha | 66 | ; |
67 | ; ebx = size |
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68 | |||
61 | halyavin | 69 | ; \begin{diamond}[18.03.2006] |
70 | ; for subfunction 16 (start application) error codes must be negative |
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64 | mario79 | 71 | ; because positive values are valid PIDs |
61 | halyavin | 72 | ; so possible return values are: |
73 | ; eax > 0 : process created, eax=PID |
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74 | |||
75 | ; -0x10 <= eax < 0 : -eax is filesystem error code: |
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76 | ; eax = -1 = 0xFFFFFFFF : no hd base and/or partition defined |
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77 | ; eax = -3 = 0xFFFFFFFD : unknown FS |
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78 | ; eax = -5 = 0xFFFFFFFB : file not found |
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79 | ; eax = -6 = 0xFFFFFFFA : unexpected end of file (probably not executable file) |
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80 | ; eax = -9 = 0xFFFFFFF7 : fat table corrupted |
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81 | ; eax = -10 = 0xFFFFFFF6 : access denied |
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82 | |||
83 | ; -0x20 <= eax < -0x10: eax is process creation error code: |
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84 | ; eax = -0x20 = 0xFFFFFFE0 : too many processes |
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85 | ; eax = -0x1F = 0xFFFFFFE1 : not Menuet/Kolibri executable |
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86 | ; eax = -0x1E = 0xFFFFFFE2 : no memory |
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87 | |||
88 | ; ebx is not changed |
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89 | |||
90 | ; \end{diamond}[18.03.2006] |
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91 | |||
1 | ha | 92 | ; Extract parameters |
465 | serge | 93 | ; add eax, std_application_base_address ; abs start of info block |
1 | ha | 94 | |
2382 | hidnplayr | 95 | cmp dword [eax+0], 15; GET_DISK_INFO |
96 | je fs_info |
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1 | ha | 97 | |
2382 | hidnplayr | 98 | cmp dword [CURRENT_TASK], 1; no memory checks for kernel requests |
99 | jz no_checks_for_kernel |
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100 | mov edx, eax |
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101 | cmp dword [eax+0], 1 |
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102 | jnz .usual_check |
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103 | mov ebx, [eax+12] |
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465 | serge | 104 | ; add ebx,std_application_base_address |
2382 | hidnplayr | 105 | mov ecx, [eax+8] |
106 | call check_region |
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107 | test eax, eax |
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108 | jnz area_in_app_mem |
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379 | serge | 109 | |
1 | ha | 110 | .error_output: |
2382 | hidnplayr | 111 | mov esi, buffer_failed |
112 | call sys_msg_board_str |
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61 | halyavin | 113 | ; mov eax,7 |
2382 | hidnplayr | 114 | mov dword [esp+36], 7 |
115 | ret |
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1 | ha | 116 | iglobal |
61 | halyavin | 117 | buffer_failed db 'K : Buffer check failed',13,10,0 |
379 | serge | 118 | endg |
1 | ha | 119 | .usual_check: |
2382 | hidnplayr | 120 | cmp dword [eax+0], 0 |
121 | mov ecx, 512 |
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122 | jnz .small_size |
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123 | mov ecx, [eax+8] |
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124 | shl ecx, 9 |
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1 | ha | 125 | .small_size: |
2382 | hidnplayr | 126 | mov ebx, [eax+12] |
465 | serge | 127 | ; add ebx,std_application_base_address |
2382 | hidnplayr | 128 | call check_region |
129 | test eax, eax |
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130 | jz .error_output |
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1 | ha | 131 | area_in_app_mem: |
2382 | hidnplayr | 132 | mov eax, edx |
1 | ha | 133 | no_checks_for_kernel: |
134 | |||
135 | fs_read: |
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136 | |||
2382 | hidnplayr | 137 | mov ebx, [eax+20] ; program wants root directory ? |
138 | test bl, bl |
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139 | je fs_getroot |
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140 | test bh, bh |
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141 | jne fs_noroot |
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1 | ha | 142 | fs_getroot: |
61 | halyavin | 143 | ; \begin{diamond}[18.03.2006] |
144 | ; root - only read is allowed |
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145 | ; other operations return "access denied", eax=10 |
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146 | ; (execute operation returns eax=-10) |
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2382 | hidnplayr | 147 | cmp dword [eax], 0 |
148 | jz .read_root |
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149 | mov dword [esp+36], 10 |
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150 | ret |
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61 | halyavin | 151 | .read_root: |
152 | ; \end{diamond}[18.03.2006] |
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2382 | hidnplayr | 153 | mov esi, dir0 |
154 | mov edi, [eax+12] |
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465 | serge | 155 | ; add edi,std_application_base_address |
2382 | hidnplayr | 156 | mov ecx, 11 |
157 | push ecx |
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64 | mario79 | 158 | ; cld ; already is |
2382 | hidnplayr | 159 | rep movsb |
160 | mov al, 0x10 |
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161 | stosb |
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162 | add edi, 32-11-1 |
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163 | pop ecx |
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164 | rep movsb |
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165 | stosb |
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166 | and dword [esp+36], 0; ok read |
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167 | mov dword [esp+24], 32*2; size of root |
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168 | ret |
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1 | ha | 169 | |
170 | fs_info: ;start of code - Mihasik |
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2382 | hidnplayr | 171 | push eax |
172 | cmp [eax+21], byte 'h' |
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173 | je fs_info_h |
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174 | cmp [eax+21], byte 'H' |
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175 | je fs_info_h |
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176 | cmp [eax+21], byte 'r' |
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177 | je fs_info_r |
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178 | cmp [eax+21], byte 'R' |
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179 | je fs_info_r |
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180 | mov eax, 3 ;if unknown disk |
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181 | xor ebx, ebx |
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182 | xor ecx, ecx |
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183 | xor edx, edx |
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184 | jmp fs_info1 |
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1 | ha | 185 | fs_info_r: |
2382 | hidnplayr | 186 | call ramdisk_free_space;if ramdisk |
187 | mov ecx, edi ;free space in ecx |
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188 | shr ecx, 9 ;free clusters |
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189 | mov ebx, 2847 ;total clusters |
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190 | mov edx, 512 ;cluster size |
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191 | xor eax, eax ;always 0 |
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192 | jmp fs_info1 |
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1 | ha | 193 | fs_info_h: ;if harddisk |
2382 | hidnplayr | 194 | call get_hd_info |
1 | ha | 195 | fs_info1: |
2382 | hidnplayr | 196 | pop edi |
197 | mov [esp+36], eax |
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198 | mov [esp+24], ebx ; total clusters on disk |
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199 | mov [esp+32], ecx ; free clusters on disk |
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200 | mov [edi], edx ; cluster size in bytes |
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201 | ret ;end of code - Mihasik |
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1 | ha | 202 | |
203 | fs_noroot: |
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204 | |||
2382 | hidnplayr | 205 | push dword [eax+0] ; read/write/delete/.../makedir/rename/lba/run |
206 | push dword [eax+4] ; 512 block number to read |
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207 | push dword [eax+8] ; bytes to write/append or 512 blocks to read |
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208 | mov ebx, [eax+12] |
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465 | serge | 209 | ; add ebx,std_application_base_address |
2382 | hidnplayr | 210 | push ebx ; abs start of return/save area |
1 | ha | 211 | |
2382 | hidnplayr | 212 | lea esi, [eax+20] ; abs start of dir + filename |
213 | mov edi, [eax+16] |
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465 | serge | 214 | ; add edi,std_application_base_address ; abs start of work area |
1 | ha | 215 | |
2382 | hidnplayr | 216 | call expand_pathz |
1 | ha | 217 | |
2382 | hidnplayr | 218 | push edi ; dir start |
219 | push ebx ; name of file start |
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1 | ha | 220 | |
2382 | hidnplayr | 221 | mov eax, [edi+1] |
222 | cmp eax, 'RD ' |
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223 | je fs_yesramdisk |
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224 | cmp eax, 'RAMD' |
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225 | jne fs_noramdisk |
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1 | ha | 226 | |
227 | fs_yesramdisk: |
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228 | |||
2382 | hidnplayr | 229 | cmp byte [edi+1+11], 0 |
230 | je fs_give_dir1 |
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1 | ha | 231 | |
2382 | hidnplayr | 232 | mov eax, [edi+1+12] |
233 | cmp eax, '1 ' |
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234 | je fs_yesramdisk_first |
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235 | cmp eax, 'FIRS' |
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236 | jne fs_noramdisk |
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1 | ha | 237 | |
238 | fs_yesramdisk_first: |
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239 | |||
2382 | hidnplayr | 240 | cmp dword [esp+20], 8; LBA read ramdisk |
241 | jne fs_no_LBA_read_ramdisk |
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1 | ha | 242 | |
2382 | hidnplayr | 243 | mov eax, [esp+16] ; LBA block to read |
244 | mov ecx, [esp+8] ; abs pointer to return area |
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1 | ha | 245 | |
2382 | hidnplayr | 246 | call LBA_read_ramdisk |
247 | jmp file_system_return |
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1 | ha | 248 | |
249 | |||
250 | fs_no_LBA_read_ramdisk: |
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251 | |||
2382 | hidnplayr | 252 | cmp dword [esp+20], 0; READ |
253 | jne fs_noramdisk_read |
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1 | ha | 254 | |
2382 | hidnplayr | 255 | mov eax, [esp+4] ; fname |
256 | add eax, 2*12+1 |
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257 | mov ebx, [esp+16] ; block start |
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258 | inc ebx |
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259 | mov ecx, [esp+12] ; block count |
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260 | mov edx, [esp+8] ; return |
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261 | mov esi, [esp+0] |
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262 | sub esi, eax |
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263 | add esi, 12+1 ; file name length |
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264 | call fileread |
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1 | ha | 265 | |
2382 | hidnplayr | 266 | jmp file_system_return |
1 | ha | 267 | |
268 | |||
269 | fs_noramdisk_read: |
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270 | fs_noramdisk: |
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379 | serge | 271 | |
1 | ha | 272 | ;******************************************************************** |
2382 | hidnplayr | 273 | mov eax, [edi+1] |
274 | cmp eax, 'FD ' |
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275 | je fs_yesflpdisk |
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276 | cmp eax, 'FLOP' |
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277 | jne fs_noflpdisk |
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1 | ha | 278 | |
279 | fs_yesflpdisk: |
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2382 | hidnplayr | 280 | call reserve_flp |
1 | ha | 281 | |
2382 | hidnplayr | 282 | cmp byte [edi+1+11], 0 |
283 | je fs_give_dir1 |
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1 | ha | 284 | |
2382 | hidnplayr | 285 | mov eax, [edi+1+12] |
286 | cmp eax, '1 ' |
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287 | je fs_yesflpdisk_first |
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288 | cmp eax, 'FIRS' |
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289 | je fs_yesflpdisk_first |
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290 | cmp eax, '2 ' |
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291 | je fs_yesflpdisk_second |
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292 | cmp eax, 'SECO' |
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293 | jne fs_noflpdisk |
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294 | jmp fs_yesflpdisk_second |
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1 | ha | 295 | |
296 | fs_yesflpdisk_first: |
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2382 | hidnplayr | 297 | mov [flp_number], 1 |
298 | jmp fs_yesflpdisk_start |
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1 | ha | 299 | fs_yesflpdisk_second: |
2382 | hidnplayr | 300 | mov [flp_number], 2 |
1 | ha | 301 | fs_yesflpdisk_start: |
2382 | hidnplayr | 302 | cmp dword [esp+20], 0; READ |
303 | jne fs_noflpdisk_read |
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1 | ha | 304 | |
2382 | hidnplayr | 305 | mov eax, [esp+4] ; fname |
306 | add eax, 2*12+1 |
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307 | mov ebx, [esp+16] ; block start |
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308 | inc ebx |
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309 | mov ecx, [esp+12] ; block count |
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310 | mov edx, [esp+8] ; return |
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311 | mov esi, [esp+0] |
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312 | sub esi, eax |
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313 | add esi, 12+1 ; file name length |
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314 | call floppy_fileread |
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1 | ha | 315 | |
2382 | hidnplayr | 316 | jmp file_system_return |
1 | ha | 317 | |
318 | |||
319 | fs_noflpdisk_read: |
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320 | fs_noflpdisk: |
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321 | ;***************************************************************** |
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379 | serge | 322 | |
2382 | hidnplayr | 323 | mov eax, [edi+1] |
324 | cmp eax, 'HD0 ' |
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325 | je fs_yesharddisk_IDE0 |
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326 | cmp eax, 'HD1 ' |
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327 | je fs_yesharddisk_IDE1 |
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328 | cmp eax, 'HD2 ' |
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329 | je fs_yesharddisk_IDE2 |
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330 | cmp eax, 'HD3 ' |
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331 | je fs_yesharddisk_IDE3 |
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332 | jmp old_path_harddisk |
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1 | ha | 333 | fs_yesharddisk_IDE0: |
2382 | hidnplayr | 334 | call reserve_hd1 |
335 | mov [hdbase], 0x1f0 |
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336 | mov [hdid], 0x0 |
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337 | mov [hdpos], 1 |
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338 | jmp fs_yesharddisk_partition |
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1 | ha | 339 | fs_yesharddisk_IDE1: |
2382 | hidnplayr | 340 | call reserve_hd1 |
341 | mov [hdbase], 0x1f0 |
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342 | mov [hdid], 0x10 |
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343 | mov [hdpos], 2 |
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344 | jmp fs_yesharddisk_partition |
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1 | ha | 345 | fs_yesharddisk_IDE2: |
2382 | hidnplayr | 346 | call reserve_hd1 |
347 | mov [hdbase], 0x170 |
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348 | mov [hdid], 0x0 |
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349 | mov [hdpos], 3 |
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350 | jmp fs_yesharddisk_partition |
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1 | ha | 351 | fs_yesharddisk_IDE3: |
2382 | hidnplayr | 352 | call reserve_hd1 |
353 | mov [hdbase], 0x170 |
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354 | mov [hdid], 0x10 |
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355 | mov [hdpos], 4 |
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1 | ha | 356 | fs_yesharddisk_partition: |
321 | diamond | 357 | call reserve_hd_channel |
379 | serge | 358 | ; call choice_necessity_partition |
359 | ; jmp fs_yesharddisk_all |
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2382 | hidnplayr | 360 | jmp fs_for_new_semantic |
1 | ha | 361 | |
362 | choice_necessity_partition: |
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2382 | hidnplayr | 363 | mov eax, [edi+1+12] |
364 | call StringToNumber |
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365 | mov [fat32part], eax |
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1 | ha | 366 | choice_necessity_partition_1: |
2382 | hidnplayr | 367 | mov ecx, [hdpos] |
368 | xor eax, eax |
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369 | mov [hd_entries], eax; entries in hd cache |
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370 | mov edx, DRIVE_DATA+2 |
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371 | cmp ecx, 0x80 |
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372 | jb search_partition_array |
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373 | mov ecx, 4 |
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1 | ha | 374 | search_partition_array: |
2382 | hidnplayr | 375 | mov bl, [edx] |
376 | movzx ebx, bl |
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377 | add eax, ebx |
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378 | inc edx |
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379 | loop search_partition_array |
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380 | mov ecx, [hdpos] |
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381 | mov edx, BiosDiskPartitions |
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382 | sub ecx, 0x80 |
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383 | jb .s |
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384 | je .f |
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709 | diamond | 385 | @@: |
2382 | hidnplayr | 386 | mov ebx, [edx] |
387 | add edx, 4 |
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388 | add eax, ebx |
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389 | loop @b |
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390 | jmp .f |
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709 | diamond | 391 | .s: |
2382 | hidnplayr | 392 | sub eax, ebx |
709 | diamond | 393 | .f: |
2382 | hidnplayr | 394 | add eax, [known_part]; add eax,[fat32part] |
395 | dec eax |
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396 | xor edx, edx |
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397 | imul eax, 100 |
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398 | add eax, DRIVE_DATA+0xa |
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399 | mov [transfer_adress], eax |
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400 | call partition_data_transfer_1 |
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401 | ret |
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1 | ha | 402 | |
403 | old_path_harddisk: |
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2382 | hidnplayr | 404 | mov eax, [edi+1] |
405 | cmp eax, 'HD ' |
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406 | je fs_yesharddisk |
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407 | cmp eax, 'HARD' |
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408 | jne fs_noharddisk |
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1 | ha | 409 | |
410 | fs_yesharddisk: |
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2382 | hidnplayr | 411 | cmp dword [esp+20], 8; LBA read |
412 | jne fs_no_LBA_read |
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413 | mov eax, [esp+16] ; LBA block to read |
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414 | lea ebx, [edi+1+12] ; pointer to FIRST/SECOND/THIRD/FOURTH |
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415 | mov ecx, [esp+8] ; abs pointer to return area |
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416 | call LBA_read |
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417 | jmp file_system_return |
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1 | ha | 418 | |
419 | fs_no_LBA_read: |
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420 | |||
2382 | hidnplayr | 421 | cmp byte [edi+1+11], 0; directory read |
422 | je fs_give_dir1 |
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423 | call reserve_hd1 |
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1 | ha | 424 | fs_for_new_semantic: |
2382 | hidnplayr | 425 | call choice_necessity_partition |
1 | ha | 426 | |
427 | fs_yesharddisk_all: |
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2382 | hidnplayr | 428 | mov eax, 1 |
429 | mov ebx, [esp+24+24] |
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430 | cmp [hdpos], 0 ; is hd base set? |
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431 | jz hd_err_return |
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432 | cmp [fat32part], 0 ; is partition set? |
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433 | jnz @f |
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63 | halyavin | 434 | hd_err_return: |
2382 | hidnplayr | 435 | call free_hd_channel |
436 | and [hd1_status], 0 |
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437 | jmp file_system_return |
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63 | halyavin | 438 | @@: |
1 | ha | 439 | |
2382 | hidnplayr | 440 | cmp dword [esp+20], 0; READ |
441 | jne fs_noharddisk_read |
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1 | ha | 442 | |
2382 | hidnplayr | 443 | mov eax, [esp+0] ; /fname |
444 | lea edi, [eax+12] |
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445 | mov byte [eax], 0 ; path to asciiz |
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446 | inc eax ; filename start |
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1 | ha | 447 | |
2382 | hidnplayr | 448 | mov ebx, [esp+12] ; count to read |
449 | mov ecx, [esp+8] ; buffer |
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450 | mov edx, [esp+4] |
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451 | add edx, 12*2 ; dir start |
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452 | sub edi, edx ; path length |
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453 | mov esi, [esp+16] ; blocks to read |
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1 | ha | 454 | |
2382 | hidnplayr | 455 | call file_read |
1 | ha | 456 | |
2382 | hidnplayr | 457 | mov edi, [esp+0] |
458 | mov byte [edi], '/' |
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1 | ha | 459 | |
2382 | hidnplayr | 460 | call free_hd_channel |
461 | and [hd1_status], 0 |
||
462 | jmp file_system_return |
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1 | ha | 463 | |
464 | fs_noharddisk_read: |
||
465 | |||
2382 | hidnplayr | 466 | call free_hd_channel |
467 | and [hd1_status], 0 |
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1 | ha | 468 | |
469 | fs_noharddisk: |
||
61 | halyavin | 470 | ; \begin{diamond}[18.03.2006] |
2382 | hidnplayr | 471 | mov eax, 5 ; file not found |
61 | halyavin | 472 | ; à ìîæåò áûòü, âîçâðàùàòü äðóãîé êîä îøèáêè? |
2382 | hidnplayr | 473 | mov ebx, [esp+24+24]; do not change ebx in application |
61 | halyavin | 474 | ; \end{diamond}[18.03.2006] |
1 | ha | 475 | |
476 | file_system_return: |
||
477 | |||
2382 | hidnplayr | 478 | add esp, 24 |
1 | ha | 479 | |
2382 | hidnplayr | 480 | mov [esp+36], eax |
481 | mov [esp+24], ebx |
||
482 | ret |
||
1 | ha | 483 | |
484 | |||
485 | fs_give_dir1: |
||
486 | |||
61 | halyavin | 487 | ; \begin{diamond}[18.03.2006] |
488 | ; /RD,/FD,/HD - only read is allowed |
||
489 | ; other operations return "access denied", eax=10 |
||
490 | ; (execute operation returns eax=-10) |
||
2382 | hidnplayr | 491 | cmp dword [esp+20], 0 |
492 | jz .read |
||
493 | add esp, 20 |
||
494 | pop ecx |
||
495 | mov dword [esp+36], 10 |
||
496 | ret |
||
61 | halyavin | 497 | .read: |
498 | ; \end{diamond}[18.03.2006] |
||
2382 | hidnplayr | 499 | mov al, 0x10 |
500 | mov ebx, 1 |
||
501 | mov edi, [esp+8] |
||
502 | mov esi, dir1 |
||
1 | ha | 503 | fs_d1_new: |
2382 | hidnplayr | 504 | mov ecx, 11 |
61 | halyavin | 505 | ; cld |
2382 | hidnplayr | 506 | rep movsb |
507 | stosb |
||
508 | add edi, 32-11-1 |
||
509 | dec ebx |
||
510 | jne fs_d1_new |
||
1 | ha | 511 | |
2382 | hidnplayr | 512 | add esp, 24 |
1 | ha | 513 | |
2382 | hidnplayr | 514 | and dword [esp+36], 0; ok read |
515 | mov dword [esp+24], 32*1; dir/data size |
||
516 | ret |
||
1 | ha | 517 | |
518 | |||
519 | |||
520 | LBA_read_ramdisk: |
||
521 | |||
2382 | hidnplayr | 522 | cmp [lba_read_enabled], 1 |
523 | je lbarrl1 |
||
1 | ha | 524 | |
2382 | hidnplayr | 525 | xor ebx, ebx |
526 | mov eax, 2 |
||
527 | ret |
||
1 | ha | 528 | |
529 | lbarrl1: |
||
530 | |||
2382 | hidnplayr | 531 | cmp eax, 18*2*80 |
532 | jb lbarrl2 |
||
533 | xor ebx, ebx |
||
534 | mov eax, 3 |
||
535 | ret |
||
1 | ha | 536 | |
537 | lbarrl2: |
||
538 | |||
2382 | hidnplayr | 539 | pushad |
1 | ha | 540 | |
2382 | hidnplayr | 541 | call restorefatchain |
1 | ha | 542 | |
2382 | hidnplayr | 543 | mov edi, ecx |
544 | mov esi, eax |
||
1 | ha | 545 | |
2382 | hidnplayr | 546 | shl esi, 9 |
547 | add esi, RAMDISK |
||
548 | mov ecx, 512/4 |
||
61 | halyavin | 549 | ; cld |
2382 | hidnplayr | 550 | rep movsd |
1 | ha | 551 | |
2382 | hidnplayr | 552 | popad |
1 | ha | 553 | |
2382 | hidnplayr | 554 | xor ebx, ebx |
555 | xor eax, eax |
||
556 | ret |
||
1 | ha | 557 | |
558 | LBA_read: |
||
559 | |||
560 | ; IN: |
||
561 | ; |
||
562 | ; eax = LBA block to read |
||
563 | ; ebx = pointer to FIRST/SECOND/THIRD/FOURTH |
||
564 | ; ecx = abs pointer to return area |
||
565 | |||
2382 | hidnplayr | 566 | cmp [lba_read_enabled], 1 |
567 | je lbarl1 |
||
568 | mov eax, 2 |
||
569 | ret |
||
1 | ha | 570 | |
571 | lbarl1: |
||
572 | |||
2382 | hidnplayr | 573 | call reserve_hd1 |
1 | ha | 574 | |
2382 | hidnplayr | 575 | push eax |
576 | push ecx |
||
1 | ha | 577 | |
2382 | hidnplayr | 578 | mov edi, hd_address_table |
579 | mov esi, dir1 |
||
580 | mov eax, [ebx] |
||
581 | mov edx, '1 ' |
||
582 | mov ecx, 4 |
||
1 | ha | 583 | blar0: |
2382 | hidnplayr | 584 | cmp eax, [esi] |
585 | je blar2 |
||
586 | cmp eax, edx |
||
587 | je blar2 |
||
588 | inc edx |
||
589 | add edi, 8 |
||
590 | add esi, 11 |
||
591 | dec ecx |
||
592 | jnz blar0 |
||
1 | ha | 593 | |
2382 | hidnplayr | 594 | mov eax, 1 |
595 | mov ebx, 1 |
||
596 | jmp LBA_read_ret |
||
1 | ha | 597 | |
598 | blar2: |
||
2382 | hidnplayr | 599 | mov eax, [edi+0] |
600 | mov ebx, [edi+4] |
||
1 | ha | 601 | |
2382 | hidnplayr | 602 | mov [hdbase], eax |
603 | mov [hdid], ebx |
||
64 | mario79 | 604 | |
2382 | hidnplayr | 605 | call wait_for_hd_idle |
606 | cmp [hd_error], 0 |
||
607 | jne hd_lba_error |
||
1 | ha | 608 | |
609 | ; eax = hd port |
||
610 | ; ebx = set for primary (0x00) or slave (0x10) |
||
611 | |||
2382 | hidnplayr | 612 | cli |
1 | ha | 613 | |
2382 | hidnplayr | 614 | mov edx, eax |
615 | inc edx |
||
616 | xor eax, eax |
||
617 | out dx, al |
||
618 | inc edx |
||
619 | inc eax |
||
620 | out dx, al |
||
621 | inc edx |
||
622 | mov eax, [esp+4] |
||
623 | out dx, al |
||
624 | shr eax, 8 |
||
625 | inc edx |
||
626 | out dx, al |
||
627 | shr eax, 8 |
||
628 | inc edx |
||
629 | out dx, al |
||
630 | shr eax, 8 |
||
631 | inc edx |
||
632 | and al, 1+2+4+8 |
||
633 | add al, bl |
||
634 | add al, 128+64+32 |
||
635 | out dx, al |
||
1 | ha | 636 | |
2382 | hidnplayr | 637 | inc edx |
638 | mov al, 20h |
||
639 | out dx, al |
||
1 | ha | 640 | |
2382 | hidnplayr | 641 | sti |
1 | ha | 642 | |
2382 | hidnplayr | 643 | call wait_for_sector_buffer |
644 | cmp [hd_error], 0 |
||
645 | jne hd_lba_error |
||
1 | ha | 646 | |
2382 | hidnplayr | 647 | cli |
1 | ha | 648 | |
2382 | hidnplayr | 649 | mov edi, [esp+0] |
650 | mov ecx, 256 |
||
651 | sub edx, 7 |
||
652 | cld |
||
653 | rep insw |
||
1 | ha | 654 | |
2382 | hidnplayr | 655 | sti |
1 | ha | 656 | |
2382 | hidnplayr | 657 | xor eax, eax |
658 | xor ebx, ebx |
||
1 | ha | 659 | |
660 | LBA_read_ret: |
||
2382 | hidnplayr | 661 | mov [hd_error], 0 |
662 | mov [hd1_status], 0 |
||
663 | add esp, 2*4 |
||
1 | ha | 664 | |
2382 | hidnplayr | 665 | ret |
1 | ha | 666 | |
667 | |||
668 | expand_pathz: |
||
669 | ; IN: |
||
670 | ; esi = asciiz path & file |
||
671 | ; edi = buffer for path & file name |
||
672 | ; OUT: |
||
673 | ; edi = directory & file : / 11 + / 11 + / 11 - zero terminated |
||
674 | ; ebx = /file name - zero terminated |
||
675 | ; esi = pointer after source |
||
676 | |||
2382 | hidnplayr | 677 | push eax |
678 | push ecx |
||
679 | push edi;[esp+0] |
||
1 | ha | 680 | |
681 | pathz_start: |
||
2382 | hidnplayr | 682 | mov byte [edi], '/' |
683 | inc edi |
||
684 | mov al, 32 |
||
685 | mov ecx, 11 |
||
686 | cld |
||
687 | rep stosb ; clear filename area |
||
688 | sub edi, 11 |
||
689 | mov ebx, edi ; start of dir/file name |
||
1 | ha | 690 | |
691 | pathz_new_char: |
||
2382 | hidnplayr | 692 | mov al, [esi] |
693 | inc esi |
||
694 | cmp al, 0 |
||
695 | je pathz_end |
||
1 | ha | 696 | |
2382 | hidnplayr | 697 | cmp al, '/' |
698 | jne pathz_not_path |
||
699 | cmp edi, ebx ; skip first '/' |
||
700 | jz pathz_new_char |
||
701 | lea edi, [ebx+11] ; start of next directory |
||
702 | jmp pathz_start |
||
1 | ha | 703 | |
704 | pathz_not_path: |
||
2382 | hidnplayr | 705 | cmp al, '.' |
706 | jne pathz_not_ext |
||
707 | lea edi, [ebx+8] ; start of extension |
||
708 | jmp pathz_new_char |
||
1 | ha | 709 | |
710 | pathz_not_ext: |
||
2382 | hidnplayr | 711 | cmp al, 'a' |
712 | jb pathz_not_low |
||
713 | cmp al, 'z' |
||
714 | ja pathz_not_low |
||
715 | sub al, 0x20 ; char to uppercase |
||
1 | ha | 716 | |
717 | pathz_not_low: |
||
2382 | hidnplayr | 718 | mov [edi], al |
719 | inc edi |
||
720 | mov eax, [esp+0] ; start_of_dest_path |
||
721 | add eax, 512 ; keep maximum path under 512 bytes |
||
722 | cmp edi, eax |
||
723 | jb pathz_new_char |
||
1 | ha | 724 | |
725 | pathz_end: |
||
2382 | hidnplayr | 726 | cmp ebx, edi ; if path end with '/' |
727 | jnz pathz_put_zero ; go back 1 level |
||
728 | sub ebx, 12 |
||
1 | ha | 729 | |
730 | pathz_put_zero: |
||
2382 | hidnplayr | 731 | mov byte [ebx+11], 0 |
732 | dec ebx ; include '/' char into file name |
||
733 | pop edi |
||
734 | pop ecx |
||
735 | pop eax |
||
736 | ret |
||
1 | ha | 737 | |
738 | ;******************************************* |
||
739 | ;* string to number |
||
740 | ;* input eax - 4 byte string |
||
741 | ;* output eax - number |
||
742 | ;******************************************* |
||
743 | StringToNumber: |
||
744 | ; ÏÅÐÅÂÎÄ ÑÒÐÎÊÎÂÎÃÎ ×ÈÑËÀ  ×ÈÑËÎÂÎÉ ÂÈÄ |
||
745 | ; Âõîä: |
||
746 | ; EDI - àäðåñ ñòðîêè ñ ÷èñëîì. Êîíåö ÷èñëà îòìå÷åí êîäîì 0Dh |
||
747 | ; Âûõîä: |
||
748 | ; CF - èíäèêàòîð îøèáîê: |
||
749 | ; 0 - îøèáîê íåò; |
||
750 | ; 1 - îøèáêà |
||
751 | ; Åñëè CF=0, òî AX - ÷èñëî. |
||
752 | |||
2382 | hidnplayr | 753 | push bx |
754 | push cx |
||
755 | push dx |
||
756 | push edi |
||
757 | mov [partition_string], eax |
||
758 | mov edi, partition_string |
||
759 | xor cx, cx |
||
379 | serge | 760 | i1: |
2382 | hidnplayr | 761 | mov al, [edi] |
762 | cmp al, 32;13 |
||
763 | je i_exit |
||
1 | ha | 764 | ; cmp al,'0' |
765 | ; jb err |
||
766 | ; cmp al,'9' |
||
767 | ; ja err |
||
2382 | hidnplayr | 768 | sub al, 48 |
769 | shl cx, 1 |
||
770 | jc error |
||
771 | mov bx, cx |
||
772 | shl cx, 1 |
||
773 | jc error |
||
774 | shl cx, 1 |
||
775 | jc error |
||
776 | add cx, bx |
||
777 | jc error |
||
778 | cbw |
||
779 | add cx, ax |
||
780 | jc error |
||
1 | ha | 781 | i3: |
2382 | hidnplayr | 782 | inc edi |
783 | jmp i1 |
||
1 | ha | 784 | i_exit: |
2382 | hidnplayr | 785 | mov ax, cx |
786 | clc |
||
1 | ha | 787 | i4: |
2382 | hidnplayr | 788 | movzx eax, ax |
789 | pop edi |
||
790 | pop dx |
||
791 | pop cx |
||
792 | pop bx |
||
793 | ret |
||
1 | ha | 794 | |
1047 | heavyiron | 795 | error: |
2382 | hidnplayr | 796 | stc |
797 | jmp i4 |
||
1 | ha | 798 | |
2382 | hidnplayr | 799 | partition_string: |
800 | dd 0 |
||
1 | ha | 801 | db 32>=>>=> |