[327] | 1 | ; Project name : BIOS Drive Information Tool |
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| 2 | ; Description : Functions to print information read from BIOS. |
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| 3 | |
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| 4 | |
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| 5 | ; Section containing code |
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| 6 | SECTION .text |
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| 7 | |
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| 8 | ;-------------------------------------------------------------------- |
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| 9 | ; Use DOS standard output so strings can be redirected to a file. |
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| 10 | ; |
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| 11 | ; Print_DosCharOut |
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| 12 | ; Parameters: |
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| 13 | ; AL: Character to output |
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| 14 | ; DS: BDA segment (zero) |
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| 15 | ; ES:DI: Ptr to video memory where to output |
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| 16 | ; Returns: |
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| 17 | ; DI: Incremented for next character |
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| 18 | ; Corrupts registers: |
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| 19 | ; AX, DX |
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| 20 | ;-------------------------------------------------------------------- |
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| 21 | ALIGN JUMP_ALIGN |
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| 22 | Print_DosCharOut: |
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| 23 | xchg dx, ax |
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| 24 | mov ah, 02h ; DOS 1+ - WRITE CHARACTER TO STANDARD OUTPUT |
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| 25 | int 21h ; Call DOS |
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| 26 | ret |
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| 27 | |
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| 28 | |
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| 29 | ;--------------------------------------------------------------------- |
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| 30 | ; Print_ErrorMessageFromAHifError |
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| 31 | ; Parameters: |
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| 32 | ; AH: BIOS error code |
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| 33 | ; CF: Set if error, cleared otherwise |
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| 34 | ; Returns: |
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| 35 | ; Nothing |
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| 36 | ; Corrupts registers: |
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| 37 | ; AX, BP, SI, DI (CF remains unchanged) |
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| 38 | ;-------------------------------------------------------------------- |
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| 39 | ALIGN JUMP_ALIGN |
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| 40 | Print_ErrorMessageFromAHifError: |
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| 41 | jnc SHORT .NoErrors |
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| 42 | eMOVZX ax, ah |
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| 43 | mov si, g_szBiosError |
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| 44 | call Print_BiosFunctionNumberFromAXusingFormatStringInSI |
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| 45 | stc ; Keep the CF set |
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| 46 | ALIGN JUMP_ALIGN |
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| 47 | .NoErrors: |
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| 48 | ret |
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| 49 | |
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| 50 | |
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| 51 | ;--------------------------------------------------------------------- |
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| 52 | ; Print_DriveNumberFromDLusingFormatStringInSI |
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| 53 | ; Print_BiosFunctionNumberFromAXusingFormatStringInSI |
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| 54 | ; Print_SectorSizeFromAXusingFormatStringInSI |
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| 55 | ; Parameters: |
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| 56 | ; DL: Drive Number |
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| 57 | ; AX: Function number |
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| 58 | ; Returns: |
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| 59 | ; Nothing |
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| 60 | ; Corrupts registers: |
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| 61 | ; AX, BP, DI |
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| 62 | ;-------------------------------------------------------------------- |
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| 63 | ALIGN JUMP_ALIGN |
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| 64 | Print_DriveNumberFromDLusingFormatStringInSI: |
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| 65 | eMOVZX ax, dl |
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| 66 | Print_BiosFunctionNumberFromAXusingFormatStringInSI: |
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| 67 | Print_SectorSizeFromAXusingFormatStringInSI: |
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| 68 | mov bp, sp |
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| 69 | push ax |
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| 70 | jmp SHORT JumpToFormatNullTerminatedStringFromSI |
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| 71 | |
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| 72 | |
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| 73 | ;--------------------------------------------------------------------- |
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| 74 | ; Print_CHSfromCXDXAX |
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| 75 | ; Parameters: |
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| 76 | ; CX: Number of cylinders (1...16383) |
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| 77 | ; DX: Number of heads (1...255) |
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| 78 | ; AX: Sectors per track (1...63) |
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| 79 | ; Returns: |
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| 80 | ; Nothing |
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| 81 | ; Corrupts registers: |
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| 82 | ; AX, BP, DI |
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| 83 | ;-------------------------------------------------------------------- |
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| 84 | ALIGN JUMP_ALIGN |
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| 85 | Print_CHSfromCXDXAX: |
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| 86 | push si |
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| 87 | |
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| 88 | mov bp, sp |
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| 89 | push cx |
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| 90 | push dx |
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| 91 | push ax |
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| 92 | mov si, g_szFormatCHS |
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| 93 | CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI |
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| 94 | |
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| 95 | pop si |
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| 96 | ret |
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| 97 | |
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| 98 | |
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| 99 | ;--------------------------------------------------------------------- |
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| 100 | ; Print_NameFromAtaInfoInBX |
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| 101 | ; Parameters: |
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| 102 | ; DS:BX: Ptr to ATA information |
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| 103 | ; Returns: |
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| 104 | ; Nothing |
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| 105 | ; Corrupts registers: |
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| 106 | ; AX, CX, BP, SI, DI |
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| 107 | ;-------------------------------------------------------------------- |
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| 108 | ALIGN JUMP_ALIGN |
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| 109 | Print_NameFromAtaInfoInBX: |
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| 110 | cld |
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| 111 | lea si, [bx+ATA1.strModel] |
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| 112 | mov di, si |
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| 113 | mov cx, A1_MODEL_NUMBER_LENGTH/2 |
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| 114 | ALIGN JUMP_ALIGN |
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| 115 | .ReverseNextWord: |
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| 116 | lodsw |
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| 117 | xchg al, ah |
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| 118 | stosw |
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| 119 | loop .ReverseNextWord |
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| 120 | dec di |
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| 121 | xor ax, ax |
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| 122 | stosb ; Terminate with NULL |
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| 123 | |
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| 124 | mov bp, sp |
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| 125 | lea si, [bx+ATA1.strModel] |
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| 126 | push si |
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| 127 | mov si, g_szFormatDrvName |
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| 128 | jmp SHORT JumpToFormatNullTerminatedStringFromSI |
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| 129 | |
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| 130 | |
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| 131 | ;--------------------------------------------------------------------- |
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| 132 | ; Print_TotalSectorsFromBXDXAX |
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| 133 | ; Parameters: |
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| 134 | ; BX:DX:AX: Total number of sectors |
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| 135 | ; Returns: |
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| 136 | ; Nothing |
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| 137 | ; Corrupts registers: |
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| 138 | ; AX, BX, BP, DI |
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| 139 | ;-------------------------------------------------------------------- |
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| 140 | ALIGN JUMP_ALIGN |
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| 141 | Print_TotalSectorsFromBXDXAX: |
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| 142 | ePUSH_T di, 0 |
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| 143 | push bx |
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| 144 | push dx |
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| 145 | push ax |
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| 146 | mov bp, sp |
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| 147 | mov bx, 10 |
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| 148 | CALL_DISPLAY_LIBRARY PrintQWordFromSSBPwithBaseInBX |
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| 149 | add sp, BYTE 8 |
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| 150 | |
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| 151 | CALL_DISPLAY_LIBRARY PrintNewlineCharacters |
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| 152 | ret |
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| 153 | |
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| 154 | |
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| 155 | ;--------------------------------------------------------------------- |
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| 156 | ; Print_EbiosVersionFromBXandExtensionsFromCX |
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| 157 | ; Parameters: |
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| 158 | ; BX: Version of extensions |
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| 159 | ; CX: Interface support bit map |
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| 160 | ; Returns: |
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| 161 | ; Nothing |
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| 162 | ; Corrupts registers: |
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| 163 | ; AX, BP, SI, DI |
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| 164 | ;-------------------------------------------------------------------- |
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| 165 | ALIGN JUMP_ALIGN |
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| 166 | Print_EbiosVersionFromBXandExtensionsFromCX: |
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| 167 | mov bp, sp |
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| 168 | push bx |
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| 169 | push cx |
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| 170 | mov si, g_szNewExtensions |
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| 171 | jmp SHORT JumpToFormatNullTerminatedStringFromSI |
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| 172 | |
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| 173 | |
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| 174 | ;--------------------------------------------------------------------- |
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| 175 | ; JumpToFormatNullTerminatedStringFromSI |
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| 176 | ; Parameters: |
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| 177 | ; BP: SP before pushing parameters |
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| 178 | ; CS:SI: Ptr to format string |
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| 179 | ; Returns: |
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| 180 | ; Pushed parameters are cleaned from stack |
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| 181 | ; Corrupts registers: |
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| 182 | ; AX, DI |
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| 183 | ;-------------------------------------------------------------------- |
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| 184 | ALIGN JUMP_ALIGN |
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| 185 | JumpToFormatNullTerminatedStringFromSI: |
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| 186 | CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI |
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| 187 | ret |
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| 188 | |
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| 189 | |
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| 190 | ;--------------------------------------------------------------------- |
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| 191 | ; Print_NullTerminatedStringFromSI |
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| 192 | ; Parameters: |
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| 193 | ; CS:SI: Ptr to string to display |
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| 194 | ; Returns: |
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| 195 | ; Nothing |
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| 196 | ; Corrupts registers: |
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| 197 | ; AX, DI |
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| 198 | ;-------------------------------------------------------------------- |
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| 199 | ALIGN JUMP_ALIGN |
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| 200 | Print_NullTerminatedStringFromSI: |
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| 201 | CALL_DISPLAY_LIBRARY PrintNullTerminatedStringFromCSSI |
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| 202 | ret |
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