| 1 | ; Project name : XTIDE Universal BIOS |
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| 2 | ; Description : Functions for printing drive configuration |
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| 3 | ; information on Boot Menu. |
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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 | ; Prints Hard Disk configuration for drive handled by our BIOS. |
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| 10 | ; Cursor is set to configuration header string position. |
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| 11 | ; |
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| 12 | ; BootMenuPrintCfg_ForOurDrive |
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| 13 | ; Parameters: |
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| 14 | ; DS:DI: Ptr to DPT |
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| 15 | ; Returns: |
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| 16 | ; Nothing |
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| 17 | ; Corrupts registers: |
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| 18 | ; AX, BX, CX, DX, SI, DI, ES |
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| 19 | ;-------------------------------------------------------------------- |
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| 20 | ALIGN JUMP_ALIGN |
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| 21 | BootMenuPrintCfg_ForOurDrive: |
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| 22 | mov si, g_szCfgHeader |
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| 23 | call BootMenuPrint_NullTerminatedStringFromCSSIandSetCF |
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| 24 | call BootMenuPrintCfg_GetPointers |
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| 25 | ; Fall to PushAndFormatCfgString |
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| 26 | |
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| 27 | |
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| 28 | ;-------------------------------------------------------------------- |
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| 29 | ; PushAndFormatCfgString |
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| 30 | ; Parameters: |
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| 31 | ; DS:DI: Ptr to DPT |
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| 32 | ; ES:BX: Ptr to BOOTNFO |
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| 33 | ; CS:SI: Ptr to IDEVARS |
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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, DX, SI, DI |
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| 38 | ;-------------------------------------------------------------------- |
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| 39 | ALIGN JUMP_ALIGN |
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| 40 | PushAndFormatCfgString: |
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| 41 | push bp |
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| 42 | mov bp, sp |
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| 43 | ; Fall to first push below |
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| 44 | |
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| 45 | ;-------------------------------------------------------------------- |
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| 46 | ; PushAddressingMode |
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| 47 | ; Parameters: |
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| 48 | ; DS:DI: Ptr to DPT |
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| 49 | ; ES:BX: Ptr to BOOTNFO |
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| 50 | ; CS:SI: Ptr to IDEVARS |
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| 51 | ; Returns: |
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| 52 | ; Nothing (jumps to next push below) |
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| 53 | ; Corrupts registers: |
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| 54 | ; AX |
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| 55 | ;-------------------------------------------------------------------- |
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| 56 | PushAddressingMode: |
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| 57 | xchg ax, bx |
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| 58 | mov bx, MASK_DPT_ADDR ; Load addressing mode mask |
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| 59 | and bl, [di+DPT.bFlags] ; Addressing mode now in BX |
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| 60 | push WORD [cs:bx+.rgszAddressingModeString] |
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| 61 | xchg bx, ax |
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| 62 | jmp SHORT .NextPush |
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| 63 | ALIGN WORD_ALIGN |
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| 64 | .rgszAddressingModeString: |
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| 65 | dw g_szLCHS |
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| 66 | dw g_szPCHS |
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| 67 | dw g_szLBA28 |
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| 68 | dw g_szLBA48 |
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| 69 | ALIGN JUMP_ALIGN |
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| 70 | .NextPush: |
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| 71 | |
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| 72 | ;-------------------------------------------------------------------- |
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| 73 | ; PushBlockMode |
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| 74 | ; Parameters: |
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| 75 | ; DS:DI: Ptr to DPT |
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| 76 | ; ES:BX: Ptr to BOOTNFO |
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| 77 | ; CS:SI: Ptr to IDEVARS |
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| 78 | ; Returns: |
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| 79 | ; Nothing (falls to next push below) |
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| 80 | ; Corrupts registers: |
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| 81 | ; AX |
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| 82 | ;-------------------------------------------------------------------- |
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| 83 | PushBlockMode: |
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| 84 | eMOVZX ax, BYTE [di+DPT.bSetBlock] |
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| 85 | push ax |
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| 86 | |
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| 87 | ;-------------------------------------------------------------------- |
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| 88 | ; PushBusType |
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| 89 | ; Parameters: |
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| 90 | ; DS:DI: Ptr to DPT |
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| 91 | ; ES:BX: Ptr to BOOTNFO |
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| 92 | ; CS:SI: Ptr to IDEVARS |
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| 93 | ; Returns: |
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| 94 | ; Nothing (jumps to next push below) |
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| 95 | ; Corrupts registers: |
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| 96 | ; AX, DX |
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| 97 | ;-------------------------------------------------------------------- |
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| 98 | PushBusType: |
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| 99 | xchg ax, bx ; Store BX to AX |
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| 100 | eMOVZX bx, BYTE [cs:si+IDEVARS.bBusType] |
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| 101 | mov bx, [cs:bx+.rgwBusTypeValues] ; Char to BL, Int to BH |
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| 102 | eMOVZX dx, bh |
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| 103 | push bx ; Push character |
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| 104 | push dx ; Push 8, 16 or 32 |
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| 105 | xchg bx, ax ; Restore BX |
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| 106 | jmp SHORT .NextPush |
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| 107 | ALIGN WORD_ALIGN |
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| 108 | .rgwBusTypeValues: |
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| 109 | db 'D', 8 ; BUS_TYPE_8_DUAL |
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| 110 | db ' ', 16 ; BUS_TYPE_16 |
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| 111 | db ' ', 32 ; BUS_TYPE_32 |
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| 112 | db 'S', 8 ; BUS_TYPE_8_SINGLE |
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| 113 | ALIGN JUMP_ALIGN |
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| 114 | .NextPush: |
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| 115 | |
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| 116 | ;-------------------------------------------------------------------- |
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| 117 | ; PushIRQ |
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| 118 | ; Parameters: |
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| 119 | ; DS:DI: Ptr to DPT |
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| 120 | ; ES:BX: Ptr to BOOTNFO |
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| 121 | ; CS:SI: Ptr to IDEVARS |
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| 122 | ; Returns: |
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| 123 | ; Nothing (falls to next push below) |
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| 124 | ; Corrupts registers: |
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| 125 | ; AX, DX |
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| 126 | ;-------------------------------------------------------------------- |
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| 127 | PushIRQ: |
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| 128 | mov dl, ' ' ; Load space to DL |
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| 129 | mov al, [cs:si+IDEVARS.bIRQ] |
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| 130 | test al, al ; Interrupts disabled? |
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| 131 | jz SHORT .PushIrqDisabled |
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| 132 | add al, '0' ; Digit to ASCII |
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| 133 | cmp al, '9' ; Only one digit needed? |
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| 134 | jbe SHORT .PushCharacters |
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| 135 | |
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| 136 | ; Two digits needed |
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| 137 | sub al, 10 ; Limit to single digit ASCII |
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| 138 | mov dl, '1' ; Load '1 to DX |
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| 139 | jmp SHORT .PushCharacters |
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| 140 | ALIGN JUMP_ALIGN |
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| 141 | .PushIrqDisabled: |
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| 142 | mov al, '-' ; Load line to AL |
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| 143 | xchg ax, dx ; Space to AL, line to DL |
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| 144 | ALIGN JUMP_ALIGN |
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| 145 | .PushCharacters: |
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| 146 | push dx |
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| 147 | push ax |
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| 148 | |
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| 149 | ;-------------------------------------------------------------------- |
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| 150 | ; PushResetStatus |
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| 151 | ; Parameters: |
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| 152 | ; DS:DI: Ptr to DPT |
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| 153 | ; ES:BX: Ptr to BOOTNFO |
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| 154 | ; CS:SI: Ptr to IDEVARS |
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| 155 | ; Returns: |
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| 156 | ; Nothing (falls to next push below) |
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| 157 | ; Corrupts registers: |
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| 158 | ; AX |
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| 159 | ;-------------------------------------------------------------------- |
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| 160 | PushResetStatus: |
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| 161 | eMOVZX ax, BYTE [di+DPT.bReset] |
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| 162 | push ax |
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| 163 | |
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| 164 | ;-------------------------------------------------------------------- |
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| 165 | ; PrintValuesFromStack |
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| 166 | ; Parameters: |
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| 167 | ; Stack: All formatting parameters |
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| 168 | ; Returns: |
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| 169 | ; Nothing |
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| 170 | ; Corrupts registers: |
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| 171 | ; AX, SI, DI |
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| 172 | ;-------------------------------------------------------------------- |
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| 173 | PrintValuesFromStack: |
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| 174 | mov si, g_szCfgFormat |
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| 175 | jmp BootMenuPrint_NullTerminatedStringFromCSSIandSetCF |
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| 176 | |
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| 177 | |
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| 178 | ;-------------------------------------------------------------------- |
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| 179 | ; BootMenuPrintCfg_GetPointers |
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| 180 | ; Parameters: |
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| 181 | ; DS:DI: Ptr to DPT |
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| 182 | ; Returns: |
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| 183 | ; DS:DI: Ptr to DPT |
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| 184 | ; ES:BX: Ptr to BOOTNFO |
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| 185 | ; CS:SI: Ptr to IDEVARS |
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| 186 | ; Corrupts registers: |
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| 187 | ; AX, DL |
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| 188 | ;-------------------------------------------------------------------- |
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| 189 | ALIGN JUMP_ALIGN |
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| 190 | BootMenuPrintCfg_GetPointers: |
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| 191 | mov dl, [di+DPT.bDrvNum] ; Load Drive number to DL |
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| 192 | call BootInfo_GetOffsetToBX ; ES:BX now points... |
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| 193 | LOAD_BDA_SEGMENT_TO es, ax ; ...to BOOTNFO |
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| 194 | mov al, [di+DPT.bIdeOff] |
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| 195 | xchg si, ax ; CS:SI now points to IDEVARS |
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| 196 | ret |
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