| 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: Pointer 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
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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 | eMOVZX ax, BYTE [di+DPT.bIdevarsOffset]
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| 23 | xchg si, ax ; CS:SI now points to IDEVARS
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| 24 | ; Fall to .PushAndFormatCfgString
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| 25 |
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| 26 | ;--------------------------------------------------------------------
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| 27 | ; PushAddressingMode
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| 28 | ; Parameters:
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| 29 | ; DS:DI: Ptr to DPT
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| 30 | ; CS:SI: Ptr to IDEVARS
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| 31 | ; Returns:
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| 32 | ; Nothing (jumps to next push below)
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| 33 | ; Corrupts registers:
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| 34 | ; AX, BX
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| 35 | ;--------------------------------------------------------------------
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| 36 | .PushAddressingMode:
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| 37 | AccessDPT_GetUnshiftedAddressModeToALZF
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| 38 | ;;
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| 39 | ;; This multiply both shifts the addressing mode bits down to low order bits, and
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| 40 | ;; at the same time multiplies by the size of the string displacement. The result is in AH,
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| 41 | ;; with AL clear, and so we exchange AL and AH after the multiply for the final result.
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| 42 | ;;
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| 43 | mov bl,(1<<(8-ADDRESSING_MODE_FIELD_POSITION)) * g_szAddressingModes_Displacement
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| 44 | mul bl
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| 45 | xchg al,ah
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| 46 | add ax,g_szAddressingModes
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| 47 | push ax
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| 48 |
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| 49 | ;--------------------------------------------------------------------
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| 50 | ; PushBlockMode
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| 51 | ; Parameters:
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| 52 | ; DS:DI: Ptr to DPT
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| 53 | ; CS:SI: Ptr to IDEVARS
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| 54 | ; Returns:
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| 55 | ; Nothing (falls to next push below)
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| 56 | ; Corrupts registers:
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| 57 | ; AX
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| 58 | ;--------------------------------------------------------------------
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| 59 | .PushBlockMode:
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| 60 | mov ax, 1
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| 61 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_BLOCK_MODE_SUPPORTED
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| 62 | jz SHORT .PushBlockSizeFromAX
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| 63 | mov al, [di+DPT_ATA.bSetBlock]
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| 64 | .PushBlockSizeFromAX:
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| 65 | push ax
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| 66 |
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| 67 | ;--------------------------------------------------------------------
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| 68 | ; PushBusType
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| 69 | ; Parameters:
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| 70 | ; DS:DI: Ptr to DPT
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| 71 | ; CS:SI: Ptr to IDEVARS
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| 72 | ; Returns:
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| 73 | ; Nothing (jumps to next push below)
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| 74 | ; Corrupts registers:
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| 75 | ; AX, DX
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| 76 | ;--------------------------------------------------------------------
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| 77 | .PushBusType:
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| 78 | mov al,g_szBusTypeValues_Displacement
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| 79 | mul BYTE [cs:si+IDEVARS.bDevice]
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| 80 |
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| 81 | shr ax,1 ; divide by 2 since IDEVARS.bDevice is multiplied by 2
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| 82 |
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| 83 | add ax,g_szBusTypeValues
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| 84 | push ax
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| 85 |
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| 86 | ;--------------------------------------------------------------------
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| 87 | ; PushIRQ
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| 88 | ; Parameters:
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| 89 | ; DS:DI: Ptr to DPT
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| 90 | ; CS:SI: Ptr to IDEVARS
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| 91 | ; Returns:
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| 92 | ; Nothing (falls to next push below)
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| 93 | ; Corrupts registers:
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| 94 | ; AX, DX
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| 95 | ;--------------------------------------------------------------------
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| 96 | .PushIRQ:
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| 97 | mov al, BYTE [cs:si+IDEVARS.bIRQ]
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| 98 | cbw
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| 99 | push ax
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| 100 |
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| 101 | ;--------------------------------------------------------------------
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| 102 | ; PushResetStatus
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| 103 | ; Parameters:
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| 104 | ; DS:DI: Ptr to DPT
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| 105 | ; CS:SI: Ptr to IDEVARS
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| 106 | ; Returns:
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| 107 | ; Nothing (falls to next push below)
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| 108 | ; Corrupts registers:
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| 109 | ; AX
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| 110 | ;--------------------------------------------------------------------
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| 111 | .PushResetStatus:
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| 112 | mov al, [di+DPT.bFlagsHigh]
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| 113 | and al, MASKH_DPT_RESET ; ah already zero from last push
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| 114 | push ax
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| 115 |
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| 116 | ;--------------------------------------------------------------------
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| 117 | ; PrintValuesFromStack
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| 118 | ; Parameters:
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| 119 | ; Stack: All formatting parameters
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| 120 | ; Returns:
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| 121 | ; Nothing
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| 122 | ; Corrupts registers:
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| 123 | ; AX, SI, DI
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| 124 | ;--------------------------------------------------------------------
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| 125 | .PrintValuesFromStack:
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| 126 | jmp BootMenuPrint_HardDiskRefreshInformation.output
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| 127 |
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