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Rev Author Line No. Line
1 ha 1 
; READ RAMDISK IMAGE FROM HD
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        cmp   [boot_dev],1
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        jne   no_sys_on_hd
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412 serge 6 
        test  [DRIVE_DATA+1],byte 0x40
1 ha 7 
        jz    position_2
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        mov   [hdbase],0x1f0
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        mov   [hdid],0x0
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        mov   [hdpos],1
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        mov   [fat32part],0
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  position_1_1:
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        inc   [fat32part]
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        call  search_and_read_image
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        cmp   [image_retrieved],1
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        je    yes_sys_on_hd
412 serge 17 
        movzx eax,byte [DRIVE_DATA+2]
1 ha 18 
        cmp   [fat32part],eax
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        jle     position_1_1
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  position_2:
412 serge 21 
        test  [DRIVE_DATA+1],byte 0x10
1 ha 22 
        jz    position_3
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        mov   [hdbase],0x1f0
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        mov   [hdid],0x10
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        mov   [hdpos],2
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        mov   [fat32part],0
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  position_2_1:
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        inc   [fat32part]
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        call  search_and_read_image
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        cmp   [image_retrieved],1
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        je    yes_sys_on_hd
412 serge 32 
        movzx eax,byte [DRIVE_DATA+3]
1 ha 33 
        cmp   eax,[fat32part]
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        jle     position_2_1
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  position_3:
412 serge 36 
        test  [DRIVE_DATA+1],byte 0x4
1 ha 37 
        jz    position_4
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        mov   [hdbase],0x170
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        mov   [hdid],0x0
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        mov   [hdpos],3
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        mov   [fat32part],0
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  position_3_1:
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        inc   [fat32part]
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        call  search_and_read_image
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        cmp   [image_retrieved],1
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        je    yes_sys_on_hd
412 serge 47 
        movzx eax,byte [DRIVE_DATA+4]
1 ha 48 
        cmp   eax,[fat32part]
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        jle     position_3_1
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  position_4:
412 serge 51 
        test  [DRIVE_DATA+1],byte 0x1
1 ha 52 
        jz    no_sys_on_hd
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        mov   [hdbase],0x170
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        mov   [hdid],0x10
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        mov   [hdpos],4
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        mov   [fat32part],0
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  position_4_1:
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        inc   [fat32part]
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        call  search_and_read_image
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        cmp   [image_retrieved],1
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        je    yes_sys_on_hd
412 serge 62 
        movzx eax,byte [DRIVE_DATA+5]
1 ha 63 
        cmp   eax,[fat32part]
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        jle     position_4_1
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        jmp   yes_sys_on_hd
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  search_and_read_image:
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        call  set_FAT32_variables
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        mov   edx, bootpath
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        call  read_image
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        test  eax, eax
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        jz   image_present
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        mov   edx, bootpath2
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        call  read_image
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        test  eax, eax
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        jz   image_present
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        ret
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    image_present:
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        mov   [image_retrieved],1
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        ret
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read_image:
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        mov   eax, hdsysimage
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        mov   ebx, 1474560/512
381 serge 85 
        mov   ecx, RAMDISK
1 ha 86 
        mov   esi, 0
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        mov   edi, 12
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        call  file_read
381 serge 89 
        ret
1 ha 90 
 
381 serge 91 
image_retrieved  db 0
1 ha 92 
counter_of_partitions db 0
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no_sys_on_hd:
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yes_sys_on_hd: