| 30,18 → 30,6 |
|---|
| iglobal |
| ; in this table names must be in lowercase |
| rootdirs: |
| db 2,'rd' |
| dd fs_OnRamdisk |
| dd fs_NextRamdisk |
| db 7,'ramdisk' |
| dd fs_OnRamdisk |
| dd fs_NextRamdisk |
| db 2,'fd' |
| dd fs_OnFloppy |
| dd fs_NextFloppy |
| db 10,'floppydisk' |
| dd fs_OnFloppy |
| dd fs_NextFloppy |
| ;********************************************** |
| db 3,'cd0' |
| dd fs_OnCd0 |
| 60,10 → 48,6 |
|---|
| |
| |
| virtual_root_query: |
| dd fs_HasRamdisk |
| db 'rd',0 |
| dd fs_HasFloppy |
| db 'fd',0 |
| ;********************************************** |
| dd fs_HasCd0 |
| db 'cd0',0 |
| 436,72 → 420,10 |
|---|
| ; ebp = 0 or pointer to rest of name from folder addressed by esi |
| ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
| |
| fs_OnRamdisk: |
| cmp ecx, 1 |
| jnz file_system_lfn.notfound |
| mov eax, [ebx] |
| cmp eax, fs_NumRamdiskServices |
| jae .not_impl |
| mov ecx, [ebx+12] |
| mov edx, [ebx+16] |
| ; add edx, std_application_base_address |
| add ebx, 4 |
| call dword [fs_RamdiskServices + eax*4] |
| mov [image_of_eax], eax |
| mov [image_of_ebx], ebx |
| ret |
| .not_impl: |
| mov dword [image_of_eax], 2 ; not implemented |
| ret |
| |
| fs_NotImplemented: |
| mov eax, 2 |
| ret |
| |
| fs_RamdiskServices: |
| dd fs_RamdiskRead |
| dd fs_RamdiskReadFolder |
| dd fs_RamdiskRewrite |
| dd fs_RamdiskWrite |
| dd fs_RamdiskSetFileEnd |
| dd fs_RamdiskGetFileInfo |
| dd fs_RamdiskSetFileInfo |
| dd 0 |
| dd fs_RamdiskDelete |
| dd fs_RamdiskCreateFolder |
| fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
| |
| fs_OnFloppy: |
| cmp ecx, 2 |
| ja file_system_lfn.notfound |
| mov eax, [ebx] |
| cmp eax, fs_NumFloppyServices |
| jae fs_OnRamdisk.not_impl |
| call reserve_flp |
| mov [flp_number], cl |
| mov ecx, [ebx+12] |
| mov edx, [ebx+16] |
| ; add edx, std_application_base_address |
| add ebx, 4 |
| call dword [fs_FloppyServices + eax*4] |
| and [flp_status], 0 |
| mov [image_of_eax], eax |
| mov [image_of_ebx], ebx |
| ret |
| |
| fs_FloppyServices: |
| dd fs_FloppyRead |
| dd fs_FloppyReadFolder |
| dd fs_FloppyRewrite |
| dd fs_FloppyWrite |
| dd fs_FloppySetFileEnd |
| dd fs_FloppyGetFileInfo |
| dd fs_FloppySetFileInfo |
| dd 0 |
| dd fs_FloppyDelete |
| dd fs_FloppyCreateFolder |
| fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
| |
| ;******************************************************* |
| fs_OnCd0: |
| call reserve_cd |
| 584,16 → 506,6 |
|---|
| fs_NumCdServices = ($ - fs_CdServices)/4 |
| |
| ;******************************************************* |
| |
| fs_HasRamdisk: |
| mov al, 1 ; we always have ramdisk |
| ret |
| fs_HasFloppy: |
| cmp byte [DRIVE_DATA], 0 |
| setnz al |
| ret |
| |
| ;******************************************************* |
| fs_HasCd0: |
| test byte [DRIVE_DATA+1], 10000000b |
| setnz al |
| 617,36 → 529,6 |
|---|
| ; out: CF=1 => no more partitions |
| ; CF=0 => eax=next partition number |
| |
| fs_NextRamdisk: |
| ; we always have /rd/1 |
| test eax, eax |
| stc |
| jnz @f |
| mov al, 1 |
| clc |
| @@: |
| ret |
| |
| fs_NextFloppy: |
| ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
| test byte [DRIVE_DATA], 0xF0 |
| jz .no1 |
| test eax, eax |
| jnz .no1 |
| inc eax |
| ret ; CF cleared |
| .no1: |
| test byte [DRIVE_DATA], 0x0F |
| jz .no2 |
| cmp al, 2 |
| jae .no2 |
| mov al, 2 |
| clc |
| ret |
| .no2: |
| stc |
| ret |
| |
| ;******************************************************* |
| fs_NextCd: |
| ; we always have /cdX/1 |