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Rev | Author | Line No. | Line |
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1 | ha | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; System service for filesystem call ;; |
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4 | ;; (C) 2004 Ville Turjanmaa, License: GPL ;; |
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74 | mario79 | 5 | ;; 29.04.2006 Elimination of hangup after the ;; |
6 | ;; expiration hd_wait_timeout (for LBA) - Mario79 ;; |
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71 | diamond | 7 | ;; xx.04.2006 LFN support - diamond ;; |
1 | ha | 8 | ;; 15.01.2005 get file size/attr/date, file_append (only for hd) - ATV ;; |
9 | ;; 23.11.2004 test if hd/partition is set - ATV ;; |
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10 | ;; 18.11.2004 get_disk_info and more error codes - ATV ;; |
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11 | ;; 08.11.2004 expand_pathz and rename (only for hd) - ATV ;; |
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12 | ;; 20.10.2004 Makedir/Removedir (only for hd) - ATV ;; |
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13 | ;; ;; |
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14 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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15 | |||
16 | iglobal |
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17 | dir0: db 'HARDDISK ' |
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18 | db 'RAMDISK ' |
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19 | db 'FLOPPYDISK ' |
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20 | db 0 |
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21 | |||
22 | dir1: db 'FIRST ' |
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23 | db 'SECOND ' |
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24 | db 'THIRD ' |
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25 | db 'FOURTH ' |
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26 | db 0 |
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27 | |||
28 | not_select_IDE db 0 |
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29 | |||
30 | hd_address_table: dd 0x1f0,0x00,0x1f0,0x10 |
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31 | dd 0x170,0x00,0x170,0x10 |
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32 | endg |
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33 | |||
74 | mario79 | 34 | file_system: |
35 | |||
1 | ha | 36 | ; IN: |
37 | ; |
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133 | diamond | 38 | ; eax = 0 ; read file /RamDisk/First 6 |
1 | ha | 39 | ; eax = 1 ; write file /RamDisk/First 33 /HardDisk/First 56 |
133 | diamond | 40 | ; eax = 2 ; delete file /RamDisk/First 32 |
1 | ha | 41 | ; eax = 4 ; makedir |
42 | ; eax = 5 ; rename file/directory |
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43 | ; eax = 8 ; lba read |
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44 | ; eax = 15 ; get_disk_info |
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45 | ; eax = 16 ; start application |
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46 | ; |
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47 | ; OUT: |
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48 | ; |
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49 | ; eax = 0 : read ok |
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61 | halyavin | 50 | ; eax = 1 : no hd base and/or partition defined |
71 | diamond | 51 | ; eax = 2 : function is unsupported for this FS |
1 | ha | 52 | ; eax = 3 : unknown FS |
53 | ; eax = 4 : partition not defined at hd |
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54 | ; eax = 5 : file not found |
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55 | ; eax = 6 : end of file |
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56 | ; eax = 7 : memory pointer not in application area |
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57 | ; eax = 8 : disk full |
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58 | ; eax = 9 : fat table corrupted |
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59 | ; eax = 10 : access denied |
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83 | diamond | 60 | ; eax = 11 : disk error |
1 | ha | 61 | ; |
62 | ; ebx = size |
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63 | |||
61 | halyavin | 64 | ; \begin{diamond}[18.03.2006] |
65 | ; for subfunction 16 (start application) error codes must be negative |
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64 | mario79 | 66 | ; because positive values are valid PIDs |
61 | halyavin | 67 | ; so possible return values are: |
68 | ; eax > 0 : process created, eax=PID |
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69 | |||
70 | ; -0x10 <= eax < 0 : -eax is filesystem error code: |
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71 | ; eax = -1 = 0xFFFFFFFF : no hd base and/or partition defined |
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72 | ; eax = -3 = 0xFFFFFFFD : unknown FS |
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73 | ; eax = -5 = 0xFFFFFFFB : file not found |
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74 | ; eax = -6 = 0xFFFFFFFA : unexpected end of file (probably not executable file) |
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75 | ; eax = -9 = 0xFFFFFFF7 : fat table corrupted |
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76 | ; eax = -10 = 0xFFFFFFF6 : access denied |
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77 | |||
78 | ; -0x20 <= eax < -0x10: eax is process creation error code: |
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79 | ; eax = -0x20 = 0xFFFFFFE0 : too many processes |
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80 | ; eax = -0x1F = 0xFFFFFFE1 : not Menuet/Kolibri executable |
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81 | ; eax = -0x1E = 0xFFFFFFE2 : no memory |
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82 | |||
83 | ; ebx is not changed |
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84 | |||
85 | ; \end{diamond}[18.03.2006] |
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86 | |||
1 | ha | 87 | ; Extract parameters |
64 | mario79 | 88 | add eax, std_application_base_address ; abs start of info block |
1 | ha | 89 | |
90 | cmp dword [eax+0],15 ; GET_DISK_INFO |
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91 | je fs_info |
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92 | cmp dword [eax+0],16 ; RUN - dont care about read&write blocks |
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93 | je fs_read |
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94 | cmp dword [eax+0],5 ; RENAME - dont care about read&write blocks |
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95 | je fs_read |
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96 | cmp dword [eax+0],4 ; MAKEDIR - dont care about read&write blocks |
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97 | je fs_read |
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98 | cmp dword [eax+0],2 ; DELETE - dont care about read&write blocks |
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99 | je fs_read |
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100 | |||
101 | cmp dword [0x3000],1 ; no memory checks for kernel requests |
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102 | jz no_checks_for_kernel |
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103 | mov edx,eax |
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104 | cmp dword [eax+0],1 |
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105 | jnz .usual_check |
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106 | mov ebx,[eax+12] |
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107 | add ebx,std_application_base_address |
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108 | mov ecx,[eax+8] |
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109 | call check_region |
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110 | test eax,eax |
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111 | jnz area_in_app_mem |
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112 | |||
113 | .error_output: |
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114 | mov esi,buffer_failed |
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115 | call sys_msg_board_str |
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61 | halyavin | 116 | ; mov eax,7 |
1 | ha | 117 | mov dword [esp+36],7 |
118 | ret |
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119 | iglobal |
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61 | halyavin | 120 | buffer_failed db 'K : Buffer check failed',13,10,0 |
1 | ha | 121 | endg |
122 | .usual_check: |
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123 | cmp dword [eax+0],0 |
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124 | mov ecx,512 |
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125 | jnz .small_size |
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126 | mov ecx,[eax+8] |
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127 | shl ecx,9 |
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128 | .small_size: |
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129 | mov ebx,[eax+12] |
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130 | add ebx,std_application_base_address |
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131 | call check_region |
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132 | test eax,eax |
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133 | jz .error_output |
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134 | area_in_app_mem: |
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135 | mov eax,edx |
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136 | no_checks_for_kernel: |
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137 | |||
138 | fs_read: |
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139 | |||
140 | mov ebx,[eax+20] ; program wants root directory ? |
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141 | test bl,bl |
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142 | je fs_getroot |
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143 | test bh,bh |
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144 | jne fs_noroot |
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145 | fs_getroot: |
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61 | halyavin | 146 | ; \begin{diamond}[18.03.2006] |
147 | ; root - only read is allowed |
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148 | ; other operations return "access denied", eax=10 |
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149 | ; (execute operation returns eax=-10) |
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64 | mario79 | 150 | cmp dword [eax], 0 |
151 | jz .read_root |
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152 | mov ecx, 10 |
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153 | cmp dword [eax], 16 |
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154 | jnz @f |
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155 | neg ecx |
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156 | @@: mov [esp+36], ecx |
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157 | ret |
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61 | halyavin | 158 | .read_root: |
159 | ; \end{diamond}[18.03.2006] |
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1 | ha | 160 | mov esi,dir0 |
161 | mov edi,[eax+12] |
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61 | halyavin | 162 | add edi,std_application_base_address |
1 | ha | 163 | mov ecx,11 |
61 | halyavin | 164 | push ecx |
64 | mario79 | 165 | ; cld ; already is |
1 | ha | 166 | rep movsb |
61 | halyavin | 167 | mov al,0x10 |
1 | ha | 168 | stosb |
169 | add edi,32-11-1 |
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61 | halyavin | 170 | pop ecx |
1 | ha | 171 | rep movsb |
172 | stosb |
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61 | halyavin | 173 | and dword [esp+36],0 ; ok read |
1 | ha | 174 | mov dword [esp+24],32*2 ; size of root |
175 | ret |
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176 | |||
177 | fs_info: ;start of code - Mihasik |
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61 | halyavin | 178 | push eax |
1 | ha | 179 | cmp [eax+21],byte 'h' |
180 | je fs_info_h |
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181 | cmp [eax+21],byte 'H' |
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182 | je fs_info_h |
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183 | cmp [eax+21],byte 'r' |
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184 | je fs_info_r |
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185 | cmp [eax+21],byte 'R' |
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186 | je fs_info_r |
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187 | mov eax,3 ;if unknown disk |
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188 | xor ebx,ebx |
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189 | xor ecx,ecx |
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190 | xor edx,edx |
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191 | jmp fs_info1 |
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192 | fs_info_r: |
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193 | call ramdisk_free_space ;if ramdisk |
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194 | mov ecx,edi ;free space in ecx |
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195 | shr ecx,9 ;free clusters |
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196 | mov ebx,2847 ;total clusters |
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197 | mov edx,512 ;cluster size |
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198 | xor eax,eax ;always 0 |
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199 | jmp fs_info1 |
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200 | fs_info_h: ;if harddisk |
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201 | call get_hd_info |
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202 | fs_info1: |
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203 | pop edi |
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204 | mov [esp+36],eax |
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205 | mov [esp+24],ebx ; total clusters on disk |
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206 | mov [esp+32],ecx ; free clusters on disk |
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207 | mov [edi],edx ; cluster size in bytes |
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208 | ret ;end of code - Mihasik |
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209 | |||
210 | fs_noroot: |
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211 | |||
61 | halyavin | 212 | push dword [eax+0] ; read/write/delete/.../makedir/rename/lba/run |
213 | push dword [eax+4] ; 512 block number to read |
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214 | push dword [eax+8] ; bytes to write/append or 512 blocks to read |
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1 | ha | 215 | mov ebx,[eax+12] |
61 | halyavin | 216 | add ebx,std_application_base_address |
1 | ha | 217 | push ebx ; abs start of return/save area |
218 | |||
219 | lea esi,[eax+20] ; abs start of dir + filename |
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61 | halyavin | 220 | mov edi,[eax+16] |
64 | mario79 | 221 | add edi,std_application_base_address ; abs start of work area |
1 | ha | 222 | |
223 | call expand_pathz |
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224 | |||
225 | push edi ; dir start |
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226 | push ebx ; name of file start |
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227 | |||
228 | mov eax,[edi+1] |
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229 | cmp eax,'RD ' |
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230 | je fs_yesramdisk |
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61 | halyavin | 231 | cmp eax,'RAMD' |
1 | ha | 232 | jne fs_noramdisk |
233 | |||
234 | fs_yesramdisk: |
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235 | |||
236 | cmp byte [edi+1+11],0 |
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237 | je fs_give_dir1 |
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238 | |||
239 | mov eax,[edi+1+12] |
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240 | cmp eax,'1 ' |
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241 | je fs_yesramdisk_first |
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61 | halyavin | 242 | cmp eax,'FIRS' |
1 | ha | 243 | jne fs_noramdisk |
244 | |||
245 | fs_yesramdisk_first: |
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246 | |||
247 | cmp dword [esp+20],8 ; LBA read ramdisk |
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248 | jne fs_no_LBA_read_ramdisk |
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249 | |||
250 | mov eax,[esp+16] ; LBA block to read |
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251 | mov ecx,[esp+8] ; abs pointer to return area |
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252 | |||
253 | call LBA_read_ramdisk |
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254 | jmp file_system_return |
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255 | |||
256 | |||
257 | fs_no_LBA_read_ramdisk: |
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258 | |||
259 | cmp dword [esp+20],0 ; READ |
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260 | jne fs_noramdisk_read |
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261 | |||
262 | mov eax,[esp+4] ; fname |
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263 | add eax,2*12+1 |
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264 | mov ebx,[esp+16] ; block start |
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265 | inc ebx |
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266 | mov ecx,[esp+12] ; block count |
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267 | mov edx,[esp+8] ; return |
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268 | mov esi,[esp+0] |
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269 | sub esi,eax |
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270 | add esi,12+1 ; file name length |
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271 | call fileread |
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272 | |||
273 | jmp file_system_return |
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274 | |||
275 | |||
276 | fs_noramdisk_read: |
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277 | |||
278 | cmp dword [esp+20],1 ; WRITE |
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279 | jne fs_noramdisk_write |
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280 | |||
281 | mov eax,[esp+4] ; fname |
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282 | add eax,2*12+1 |
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283 | mov ebx,[esp+8] ; buffer |
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284 | mov ecx,[esp+12] ; count to write |
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285 | mov edx,0 ; create new |
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286 | call filesave |
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287 | |||
288 | ; eax=0 ok - eax=1 not enough free space |
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289 | |||
290 | jmp file_system_return |
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291 | |||
292 | fs_noramdisk_write: |
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293 | |||
294 | cmp dword [esp+20],16 ; START APPLICATION |
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295 | jne fs_noramdisk_start_application |
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296 | |||
297 | mov eax,[esp+4] ; fname |
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298 | add eax,2*12+1 |
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299 | |||
300 | xor ebx,ebx ; parameters to pass |
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61 | halyavin | 301 | cmp dword [esp+12],ebx;0 |
1 | ha | 302 | je no_fl_start_param |
61 | halyavin | 303 | mov ebx, [esp+12] |
304 | add ebx, std_application_base_address |
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1 | ha | 305 | no_fl_start_param: |
64 | mario79 | 306 | mov edx,[esp+16] ; flags |
1 | ha | 307 | |
308 | call start_application_fl |
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309 | |||
61 | halyavin | 310 | jmp file_system_startapp_return |
1 | ha | 311 | |
312 | fs_noramdisk_start_application: ;there's new code - Mihasik |
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313 | cmp dword [esp+20],2 ;DELETE |
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314 | jne fs_noramdisk_delete |
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315 | mov eax,[esp+4] ; fname |
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316 | add eax,2*12+1 |
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317 | call filedelete |
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318 | jmp file_system_return |
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319 | |||
320 | fs_noramdisk_delete: |
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321 | fs_noramdisk: |
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322 | |||
323 | ;******************************************************************** |
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324 | mov eax,[edi+1] |
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325 | cmp eax,'FD ' |
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326 | je fs_yesflpdisk |
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61 | halyavin | 327 | cmp eax,'FLOP' |
1 | ha | 328 | jne fs_noflpdisk |
329 | |||
330 | fs_yesflpdisk: |
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331 | call reserve_flp |
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332 | |||
333 | cmp byte [edi+1+11],0 |
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334 | je fs_give_dir1 |
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335 | |||
336 | mov eax,[edi+1+12] |
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337 | cmp eax,'1 ' |
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338 | je fs_yesflpdisk_first |
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61 | halyavin | 339 | cmp eax,'FIRS' |
1 | ha | 340 | je fs_yesflpdisk_first |
341 | cmp eax,'2 ' |
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342 | je fs_yesflpdisk_second |
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61 | halyavin | 343 | cmp eax,'SECO' |
1 | ha | 344 | jne fs_noflpdisk |
345 | jmp fs_yesflpdisk_second |
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346 | |||
347 | fs_yesflpdisk_first: |
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348 | mov [flp_number],1 |
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349 | jmp fs_yesflpdisk_start |
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350 | fs_yesflpdisk_second: |
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351 | mov [flp_number],2 |
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352 | fs_yesflpdisk_start: |
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353 | cmp dword [esp+20],0 ; READ |
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354 | jne fs_noflpdisk_read |
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355 | |||
356 | mov eax,[esp+4] ; fname |
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357 | add eax,2*12+1 |
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358 | mov ebx,[esp+16] ; block start |
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359 | inc ebx |
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360 | mov ecx,[esp+12] ; block count |
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361 | mov edx,[esp+8] ; return |
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362 | mov esi,[esp+0] |
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363 | sub esi,eax |
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364 | add esi,12+1 ; file name length |
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365 | call floppy_fileread |
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366 | |||
367 | jmp file_system_return |
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368 | |||
369 | |||
370 | fs_noflpdisk_read: |
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371 | |||
372 | cmp dword [esp+20],1 ; WRITE |
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373 | jne fs_noflpdisk_write |
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374 | |||
375 | mov eax,[esp+4] ; fname |
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376 | add eax,2*12+1 |
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377 | mov ebx,[esp+8] ; buffer |
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378 | mov ecx,[esp+12] ; count to write |
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379 | mov edx,0 ; create new |
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380 | call floppy_filesave |
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381 | |||
382 | ; eax=0 ok - eax=1 not enough free space |
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383 | |||
384 | jmp file_system_return |
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385 | |||
386 | fs_noflpdisk_write: |
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387 | |||
388 | cmp dword [esp+20],2 ; DELETE |
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389 | jne fs_noflpdisk_delete |
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390 | |||
391 | mov eax,[esp+4] ; fname |
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392 | add eax,2*12+1 |
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393 | call floppy_filedelete |
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394 | mov [flp_status],0 |
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395 | jmp file_system_return |
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396 | |||
397 | fs_noflpdisk_delete: |
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398 | cmp dword [esp+20],16 ; START APPLICATION |
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399 | jne fs_noflpdisk_start_application |
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400 | |||
401 | mov eax,[esp+4] ; fname |
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402 | add eax,2*12+1 |
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403 | |||
404 | xor ebx,ebx ; parameters to pass |
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61 | halyavin | 405 | cmp dword [esp+12],ebx;0 |
1 | ha | 406 | je no_flp_start_param |
407 | mov ebx,[0x3010] |
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408 | mov ebx,[ebx+0x10] |
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409 | add ebx,[esp+12] |
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410 | |||
411 | no_flp_start_param: |
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64 | mario79 | 412 | mov edx,[esp+16] ; flags |
1 | ha | 413 | |
414 | call start_application_floppy |
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415 | |||
61 | halyavin | 416 | file_system_startapp_return: |
64 | mario79 | 417 | mov ebx, [esp+24+24] ; do not modify ebx in application |
1 | ha | 418 | jmp file_system_return |
419 | |||
420 | fs_noflpdisk_start_application: |
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421 | |||
422 | fs_noflpdisk: |
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423 | ;***************************************************************** |
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424 | |||
425 | mov eax,[edi+1] |
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426 | cmp eax,'HD0 ' |
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427 | je fs_yesharddisk_IDE0 |
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428 | cmp eax,'HD1 ' |
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429 | je fs_yesharddisk_IDE1 |
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430 | cmp eax,'HD2 ' |
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431 | je fs_yesharddisk_IDE2 |
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432 | cmp eax,'HD3 ' |
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433 | je fs_yesharddisk_IDE3 |
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434 | jmp old_path_harddisk |
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435 | fs_yesharddisk_IDE0: |
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436 | call reserve_hd1 |
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437 | mov [hdbase],0x1f0 |
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438 | mov [hdid],0x0 |
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439 | mov [hdpos],1 |
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440 | jmp fs_yesharddisk_partition |
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441 | fs_yesharddisk_IDE1: |
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442 | call reserve_hd1 |
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443 | mov [hdbase],0x1f0 |
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444 | mov [hdid],0x10 |
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445 | mov [hdpos],2 |
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446 | jmp fs_yesharddisk_partition |
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447 | fs_yesharddisk_IDE2: |
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448 | call reserve_hd1 |
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449 | mov [hdbase],0x170 |
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450 | mov [hdid],0x0 |
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451 | mov [hdpos],3 |
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452 | jmp fs_yesharddisk_partition |
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453 | fs_yesharddisk_IDE3: |
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454 | call reserve_hd1 |
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455 | mov [hdbase],0x170 |
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456 | mov [hdid],0x10 |
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457 | mov [hdpos],4 |
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458 | fs_yesharddisk_partition: |
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459 | ; call choice_necessity_partition |
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460 | ; jmp fs_yesharddisk_all |
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461 | jmp fs_for_new_semantic |
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462 | |||
463 | choice_necessity_partition: |
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464 | mov eax,[edi+1+12] |
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465 | call StringToNumber |
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466 | mov [fat32part],eax |
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467 | choice_necessity_partition_1: |
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468 | mov ecx,[hdpos] |
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469 | xor eax,eax |
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61 | halyavin | 470 | mov [0xfe10], eax ; entries in hd cache |
1 | ha | 471 | mov edx,0x40002 |
472 | search_partition_array: |
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473 | mov bl,[edx] |
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474 | movzx ebx,bl |
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475 | add eax,ebx |
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476 | inc edx |
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477 | loop search_partition_array |
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478 | sub eax,ebx |
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479 | add eax,[fat32part] |
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480 | dec eax |
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481 | xor edx,edx |
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482 | imul eax,100 |
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483 | add eax,0x4000a |
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484 | mov [transfer_adress],eax |
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485 | call partition_data_transfer_1 |
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486 | ret |
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487 | |||
488 | old_path_harddisk: |
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489 | mov eax,[edi+1] |
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490 | cmp eax,'HD ' |
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491 | je fs_yesharddisk |
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61 | halyavin | 492 | cmp eax,'HARD' |
1 | ha | 493 | jne fs_noharddisk |
494 | |||
495 | fs_yesharddisk: |
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496 | cmp dword [esp+20],8 ; LBA read |
||
497 | jne fs_no_LBA_read |
||
498 | mov eax,[esp+16] ; LBA block to read |
||
499 | lea ebx,[edi+1+12] ; pointer to FIRST/SECOND/THIRD/FOURTH |
||
500 | mov ecx,[esp+8] ; abs pointer to return area |
||
501 | call LBA_read |
||
502 | jmp file_system_return |
||
503 | |||
504 | fs_no_LBA_read: |
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505 | |||
506 | cmp byte [edi+1+11],0 ; directory read |
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507 | je fs_give_dir1 |
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63 | halyavin | 508 | call reserve_hd1 |
1 | ha | 509 | fs_for_new_semantic: |
510 | call choice_necessity_partition |
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511 | |||
512 | fs_yesharddisk_all: |
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513 | mov eax,1 |
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64 | mario79 | 514 | cmp dword [esp+20], 16 |
515 | jnz @f |
||
516 | neg eax |
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517 | @@: mov ebx, [esp+24+24] |
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1 | ha | 518 | cmp [hdpos],0 ; is hd base set? |
63 | halyavin | 519 | jz hd_err_return |
1 | ha | 520 | cmp [fat32part],0 ; is partition set? |
63 | halyavin | 521 | jnz @f |
522 | hd_err_return: |
||
523 | and [hd1_status], 0 |
||
524 | jmp file_system_return |
||
525 | @@: |
||
1 | ha | 526 | |
527 | cmp dword [esp+20],0 ; READ |
||
528 | jne fs_noharddisk_read |
||
529 | |||
530 | mov eax,[esp+0] ; /fname |
||
531 | lea edi,[eax+12] |
||
532 | mov byte [eax],0 ; path to asciiz |
||
533 | inc eax ; filename start |
||
534 | |||
535 | mov ebx,[esp+12] ; count to read |
||
536 | mov ecx,[esp+8] ; buffer |
||
537 | mov edx,[esp+4] |
||
538 | add edx,12*2 ; dir start |
||
539 | sub edi,edx ; path length |
||
540 | mov esi,[esp+16] ; blocks to read |
||
541 | |||
542 | call file_read |
||
543 | |||
544 | mov edi,[esp+0] |
||
545 | mov byte [edi],'/' |
||
546 | |||
547 | jmp file_system_return |
||
548 | |||
549 | fs_noharddisk_read: |
||
550 | |||
551 | |||
552 | cmp dword [esp+20],1 ; WRITE |
||
553 | jne fs_noharddisk_write |
||
554 | |||
555 | mov eax,[esp+0] ; /fname |
||
556 | mov byte [eax],0 ; path to asciiz |
||
557 | inc eax ; filename start |
||
558 | |||
559 | mov ebx,[esp+12] ; count to write |
||
560 | mov ecx,[esp+8] ; buffer |
||
561 | mov edx,[esp+4] |
||
562 | add edx,12*2 ; path start |
||
563 | |||
564 | call file_write |
||
565 | |||
566 | mov edi,[esp+0] |
||
567 | mov byte [edi],'/' |
||
568 | |||
569 | ; eax=0 ok - eax=1 not enough free space |
||
570 | |||
571 | jmp file_system_return |
||
572 | |||
573 | |||
574 | fs_noharddisk_write: |
||
575 | |||
576 | cmp dword [esp+20],2 ; DELETE |
||
577 | jne fs_noharddisk_delete |
||
578 | |||
579 | mov eax,[esp+0] ; /dirname or /filename |
||
580 | mov byte [eax],0 ; path to asciiz |
||
581 | inc eax ; filename start |
||
582 | mov edx,[esp+4] |
||
583 | add edx,12*2 ; path start |
||
584 | |||
585 | call removedir |
||
586 | |||
587 | mov edi,[esp+0] |
||
588 | mov byte [edi],'/' |
||
589 | |||
590 | jmp file_system_return |
||
591 | |||
592 | fs_noharddisk_delete: |
||
593 | |||
594 | cmp dword [esp+20],4 ; MAKEDIR |
||
595 | jne fs_noharddisk_makedir |
||
596 | |||
597 | mov eax,[esp+0] ; /dirname |
||
598 | mov byte [eax],0 ; path to asciiz |
||
599 | inc eax ; filename start |
||
600 | mov edx,[esp+4] |
||
601 | add edx,12*2 ; path start |
||
602 | |||
603 | call makedir |
||
604 | |||
605 | mov edi,[esp+0] |
||
606 | mov byte [edi],'/' |
||
607 | |||
608 | jmp file_system_return |
||
609 | |||
610 | fs_noharddisk_makedir: |
||
611 | |||
612 | cmp dword [esp+20],5 ; RENAME |
||
613 | jne fs_noharddisk_rename |
||
614 | |||
615 | mov edi,[esp+0] ; start of source file name |
||
616 | add edi,12+1 ; continue after name |
||
617 | call expand_pathz ; convert destination name |
||
618 | |||
619 | mov eax,[edi+1] |
||
620 | cmp eax,'HD ' |
||
621 | je fs_rename_test1 |
||
61 | halyavin | 622 | cmp eax,'HARD' |
1 | ha | 623 | jne fs_rename_error |
624 | |||
625 | fs_rename_test1: |
||
626 | mov eax,[edi+1+12] |
||
627 | cmp eax,'1 ' |
||
628 | je fs_rename_start |
||
61 | halyavin | 629 | cmp eax,'FIRS' |
1 | ha | 630 | jne fs_rename_error |
631 | |||
632 | fs_rename_start: |
||
633 | mov byte [ebx],0 ; path to asciiz |
||
634 | inc ebx ; filename start |
||
635 | add edi,12*2 ; path start |
||
636 | cmp byte [ebx],0 |
||
637 | je fs_rename_error |
||
638 | cmp byte [ebx],32 |
||
639 | je fs_rename_error |
||
640 | |||
641 | mov eax,[esp+0] ; /filename |
||
642 | mov byte [eax],0 ; path to asciiz |
||
643 | inc eax ; filename start |
||
644 | mov edx,[esp+4] |
||
645 | add edx,12*2 ; path start |
||
646 | |||
647 | call rename |
||
648 | |||
649 | mov edi,[esp+0] |
||
650 | mov byte [edi],'/' |
||
651 | |||
652 | jmp file_system_return |
||
653 | |||
654 | fs_rename_error: |
||
655 | mov eax,4 ; partition not defined at hd |
||
656 | jmp file_system_return |
||
657 | |||
658 | fs_noharddisk_rename: |
||
659 | |||
660 | cmp dword [esp+20],16 ; START APPLICATION |
||
661 | jne fs_noharddisk_start_application |
||
662 | |||
663 | mov eax,[esp+4] ; fname |
||
664 | add eax,12*2 |
||
665 | |||
666 | mov ebx,[esp+0] ; length |
||
667 | sub ebx,eax |
||
668 | add ebx,12 |
||
669 | |||
670 | mov ecx,[esp+4] ; work area |
||
671 | add ecx,512 |
||
672 | |||
673 | xor ebp,ebp ; parameters to pass |
||
61 | halyavin | 674 | cmp dword [esp+12],ebp;0 |
1 | ha | 675 | je no_hd_start_param |
61 | halyavin | 676 | mov ebp, [esp+12] |
677 | add ebp, std_application_base_address |
||
1 | ha | 678 | no_hd_start_param: |
64 | mario79 | 679 | mov edx,[esp+16] ; flags |
1 | ha | 680 | |
681 | call start_application_hd |
||
682 | |||
61 | halyavin | 683 | jmp file_system_startapp_return |
1 | ha | 684 | |
685 | fs_noharddisk_start_application: |
||
686 | |||
687 | fs_noharddisk: |
||
61 | halyavin | 688 | ; \begin{diamond}[18.03.2006] |
64 | mario79 | 689 | mov eax, 5 ; file not found |
61 | halyavin | 690 | ; à ìîæåò áûòü, âîçâðàùàòü äðóãîé êîä îøèáêè? |
64 | mario79 | 691 | cmp dword [esp+20], 16 |
692 | jnz @f |
||
693 | neg eax |
||
694 | @@: mov ebx, [esp+24+24] ; do not change ebx in application |
||
61 | halyavin | 695 | ; \end{diamond}[18.03.2006] |
1 | ha | 696 | |
697 | file_system_return: |
||
698 | |||
699 | add esp,24 |
||
700 | |||
701 | mov [esp+36],eax |
||
702 | mov [esp+24],ebx |
||
703 | ret |
||
704 | |||
705 | |||
706 | fs_give_dir1: |
||
707 | |||
61 | halyavin | 708 | ; \begin{diamond}[18.03.2006] |
709 | ; /RD,/FD,/HD - only read is allowed |
||
710 | ; other operations return "access denied", eax=10 |
||
711 | ; (execute operation returns eax=-10) |
||
64 | mario79 | 712 | cmp dword [esp+20], 0 |
713 | jz .read |
||
714 | add esp, 20 |
||
715 | pop ecx |
||
716 | mov eax, 10 |
||
717 | cmp ecx, 16 |
||
718 | jnz @f |
||
719 | neg eax |
||
720 | @@: mov [esp+36], eax |
||
721 | ret |
||
61 | halyavin | 722 | .read: |
723 | ; \end{diamond}[18.03.2006] |
||
724 | mov al,0x10 |
||
1 | ha | 725 | mov ebx,1 |
726 | mov edi,[esp+8] |
||
727 | mov esi,dir1 |
||
728 | fs_d1_new: |
||
729 | mov ecx,11 |
||
61 | halyavin | 730 | ; cld |
1 | ha | 731 | rep movsb |
732 | stosb |
||
733 | add edi,32-11-1 |
||
734 | dec ebx |
||
735 | jne fs_d1_new |
||
736 | |||
737 | add esp,24 |
||
738 | |||
61 | halyavin | 739 | and dword [esp+36],0 ; ok read |
1 | ha | 740 | mov dword [esp+24],32*1 ; dir/data size |
741 | ret |
||
742 | |||
743 | |||
744 | |||
745 | LBA_read_ramdisk: |
||
746 | |||
747 | cmp [lba_read_enabled],1 |
||
748 | je lbarrl1 |
||
749 | |||
750 | xor ebx,ebx |
||
751 | mov eax,2 |
||
752 | ret |
||
753 | |||
754 | lbarrl1: |
||
755 | |||
756 | cmp eax,18*2*80 |
||
757 | jb lbarrl2 |
||
758 | xor ebx,ebx |
||
759 | mov eax,3 |
||
760 | ret |
||
761 | |||
762 | lbarrl2: |
||
763 | |||
764 | pushad |
||
765 | |||
766 | call restorefatchain |
||
767 | |||
768 | mov edi,ecx |
||
769 | mov esi,eax |
||
770 | |||
771 | shl esi,9 |
||
772 | add esi,0x100000 |
||
773 | mov ecx,512/4 |
||
61 | halyavin | 774 | ; cld |
1 | ha | 775 | rep movsd |
776 | |||
777 | popad |
||
778 | |||
779 | xor ebx,ebx |
||
780 | xor eax,eax |
||
781 | ret |
||
782 | |||
783 | LBA_read: |
||
784 | |||
785 | ; IN: |
||
786 | ; |
||
787 | ; eax = LBA block to read |
||
788 | ; ebx = pointer to FIRST/SECOND/THIRD/FOURTH |
||
789 | ; ecx = abs pointer to return area |
||
790 | |||
791 | cmp [lba_read_enabled],1 |
||
792 | je lbarl1 |
||
793 | mov eax,2 |
||
794 | ret |
||
795 | |||
796 | lbarl1: |
||
797 | |||
63 | halyavin | 798 | call reserve_hd1 |
1 | ha | 799 | |
800 | push eax |
||
801 | push ecx |
||
802 | |||
803 | mov edi,hd_address_table |
||
804 | mov esi,dir1 |
||
805 | mov eax,[ebx] |
||
806 | mov edx,'1 ' |
||
807 | mov ecx,4 |
||
808 | blar0: |
||
809 | cmp eax,[esi] |
||
810 | je blar2 |
||
811 | cmp eax,edx |
||
812 | je blar2 |
||
813 | inc edx |
||
814 | add edi,8 |
||
815 | add esi,11 |
||
816 | dec ecx |
||
817 | jnz blar0 |
||
818 | |||
819 | mov eax,1 |
||
820 | mov ebx,1 |
||
821 | jmp LBA_read_ret |
||
822 | |||
823 | blar2: |
||
824 | mov eax,[edi+0] |
||
825 | mov ebx,[edi+4] |
||
826 | |||
64 | mario79 | 827 | mov [hdbase],eax |
828 | mov [hdid],ebx |
||
829 | |||
1 | ha | 830 | call wait_for_hd_idle |
74 | mario79 | 831 | cmp [hd_error],0 |
832 | jne hd_lba_error |
||
1 | ha | 833 | |
834 | ; eax = hd port |
||
835 | ; ebx = set for primary (0x00) or slave (0x10) |
||
836 | |||
837 | cli |
||
838 | |||
839 | mov edx,eax |
||
840 | inc edx |
||
841 | xor eax,eax |
||
842 | out dx,al |
||
843 | inc edx |
||
844 | inc eax |
||
845 | out dx,al |
||
846 | inc edx |
||
847 | mov eax,[esp+4] |
||
848 | out dx,al |
||
849 | shr eax,8 |
||
850 | inc edx |
||
851 | out dx,al |
||
852 | shr eax,8 |
||
853 | inc edx |
||
854 | out dx,al |
||
855 | shr eax,8 |
||
856 | inc edx |
||
857 | and al,1+2+4+8 |
||
858 | add al,bl |
||
859 | add al,128+64+32 |
||
860 | out dx,al |
||
861 | |||
862 | inc edx |
||
863 | mov al,20h |
||
864 | out dx,al |
||
865 | |||
866 | sti |
||
867 | |||
868 | call wait_for_sector_buffer |
||
74 | mario79 | 869 | cmp [hd_error],0 |
870 | jne hd_lba_error |
||
1 | ha | 871 | |
872 | cli |
||
873 | |||
874 | mov edi,[esp+0] |
||
875 | mov ecx,256 |
||
876 | sub edx,7 |
||
877 | cld |
||
878 | rep insw |
||
879 | |||
880 | sti |
||
881 | |||
882 | xor eax,eax |
||
883 | xor ebx,ebx |
||
884 | |||
885 | LBA_read_ret: |
||
74 | mario79 | 886 | mov [hd_error],0 |
1 | ha | 887 | mov [hd1_status],0 |
888 | add esp,2*4 |
||
889 | |||
890 | ret |
||
891 | |||
892 | |||
893 | expand_pathz: |
||
894 | ; IN: |
||
895 | ; esi = asciiz path & file |
||
896 | ; edi = buffer for path & file name |
||
897 | ; OUT: |
||
898 | ; edi = directory & file : / 11 + / 11 + / 11 - zero terminated |
||
899 | ; ebx = /file name - zero terminated |
||
900 | ; esi = pointer after source |
||
901 | |||
902 | push eax |
||
903 | push ecx |
||
904 | push edi ;[esp+0] |
||
905 | |||
906 | pathz_start: |
||
907 | mov byte [edi],'/' |
||
908 | inc edi |
||
909 | mov al,32 |
||
910 | mov ecx,11 |
||
911 | cld |
||
912 | rep stosb ; clear filename area |
||
913 | sub edi,11 |
||
914 | mov ebx,edi ; start of dir/file name |
||
915 | |||
916 | pathz_new_char: |
||
917 | mov al,[esi] |
||
918 | inc esi |
||
919 | cmp al,0 |
||
920 | je pathz_end |
||
921 | |||
922 | cmp al,'/' |
||
923 | jne pathz_not_path |
||
924 | cmp edi,ebx ; skip first '/' |
||
925 | jz pathz_new_char |
||
926 | lea edi,[ebx+11] ; start of next directory |
||
927 | jmp pathz_start |
||
928 | |||
929 | pathz_not_path: |
||
930 | cmp al,'.' |
||
931 | jne pathz_not_ext |
||
932 | lea edi,[ebx+8] ; start of extension |
||
933 | jmp pathz_new_char |
||
934 | |||
935 | pathz_not_ext: |
||
936 | cmp al,'a' |
||
937 | jb pathz_not_low |
||
938 | cmp al,'z' |
||
939 | ja pathz_not_low |
||
940 | sub al,0x20 ; char to uppercase |
||
941 | |||
942 | pathz_not_low: |
||
943 | mov [edi],al |
||
944 | inc edi |
||
945 | mov eax,[esp+0] ; start_of_dest_path |
||
946 | add eax,512 ; keep maximum path under 512 bytes |
||
947 | cmp edi,eax |
||
948 | jb pathz_new_char |
||
949 | |||
950 | pathz_end: |
||
951 | cmp ebx,edi ; if path end with '/' |
||
952 | jnz pathz_put_zero ; go back 1 level |
||
953 | sub ebx,12 |
||
954 | |||
955 | pathz_put_zero: |
||
956 | mov byte [ebx+11],0 |
||
957 | dec ebx ; include '/' char into file name |
||
958 | pop edi |
||
959 | pop ecx |
||
960 | pop eax |
||
961 | ret |
||
962 | |||
963 | ;******************************************* |
||
964 | ;* string to number |
||
965 | ;* input eax - 4 byte string |
||
966 | ;* output eax - number |
||
967 | ;******************************************* |
||
968 | StringToNumber: |
||
969 | ; ÏÅÐÅÂÎÄ ÑÒÐÎÊÎÂÎÃÎ ×ÈÑËÀ  ×ÈÑËÎÂÎÉ ÂÈÄ |
||
970 | ; Âõîä: |
||
971 | ; EDI - àäðåñ ñòðîêè ñ ÷èñëîì. Êîíåö ÷èñëà îòìå÷åí êîäîì 0Dh |
||
972 | ; Âûõîä: |
||
973 | ; CF - èíäèêàòîð îøèáîê: |
||
974 | ; 0 - îøèáîê íåò; |
||
975 | ; 1 - îøèáêà |
||
976 | ; Åñëè CF=0, òî AX - ÷èñëî. |
||
977 | |||
978 | push bx |
||
979 | push cx |
||
980 | push dx |
||
981 | push edi |
||
982 | mov [partition_string],eax |
||
983 | mov edi,partition_string |
||
984 | xor cx,cx |
||
985 | i1: |
||
986 | mov al,[edi] |
||
987 | cmp al,32 ;13 |
||
988 | je i_exit |
||
989 | ; cmp al,'0' |
||
990 | ; jb err |
||
991 | ; cmp al,'9' |
||
992 | ; ja err |
||
993 | sub al,48 |
||
994 | shl cx,1 |
||
995 | jc err |
||
996 | mov bx,cx |
||
997 | shl cx,1 |
||
998 | jc err |
||
999 | shl cx,1 |
||
1000 | jc err |
||
1001 | add cx,bx |
||
1002 | jc err |
||
1003 | cbw |
||
1004 | add cx,ax |
||
1005 | jc err |
||
1006 | i3: |
||
1007 | inc edi |
||
1008 | jmp i1 |
||
1009 | i_exit: |
||
1010 | mov ax,cx |
||
1011 | clc |
||
1012 | i4: |
||
1013 | movzx eax,ax |
||
1014 | pop edi |
||
1015 | pop dx |
||
1016 | pop cx |
||
1017 | pop bx |
||
1018 | ret |
||
1019 | |||
1020 | err: |
||
1021 | stc |
||
1022 | jmp i4 |
||
1023 | |||
1024 | partition_string: dd 0 |
||
1025 | db 32>=>>=> |