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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