1 | ; Project name : XTIDE Universal BIOS |
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2 | ; Description : Command and port direction functions for different device types. |
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3 | |
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4 | ; Section containing code |
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5 | SECTION .text |
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6 | |
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7 | |
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8 | %macro TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE 1 |
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9 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE |
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10 | jnz SHORT %1 |
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11 | %endmacro |
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12 | |
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13 | %macro CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE 1 |
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14 | eMOVZX bx, [di+DPT.bIdevarsOffset] |
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15 | cmp BYTE [cs:bx+IDEVARS.bDevice], DEVICE_JRIDE_ISA |
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16 | je SHORT %1 |
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17 | %endmacro |
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18 | |
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19 | %macro CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF 2 |
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20 | cmp BYTE [cs:bp+IDEVARS.bDevice], %1 |
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21 | je SHORT %2 |
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22 | %endmacro |
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23 | |
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24 | |
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25 | |
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26 | ;-------------------------------------------------------------------- |
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27 | ; Device_FinalizeDPT |
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28 | ; Parameters: |
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29 | ; DS:DI: Ptr to Disk Parameter Table |
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30 | ; ES:SI: Ptr to 512-byte ATA information read from the drive |
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31 | ; CS:BP: Ptr to IDEVARS for the controller |
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32 | ; Returns: |
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33 | ; Nothing |
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34 | ; Corrupts registers: |
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35 | ; AX, BX, CX, DX |
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36 | ;-------------------------------------------------------------------- |
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37 | %ifdef MODULE_SERIAL |
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38 | Device_FinalizeDPT: |
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39 | TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE .FinalizeDptForSerialPortDevice |
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40 | jmp IdeDPT_Finalize |
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41 | .FinalizeDptForSerialPortDevice: |
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42 | jmp SerialDPT_Finalize |
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43 | |
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44 | %else ; IDE or JR-IDE/ISA |
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45 | Device_FinalizeDPT EQU IdeDPT_Finalize |
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46 | %endif |
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47 | |
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48 | |
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49 | ;-------------------------------------------------------------------- |
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50 | ; Device_ResetMasterAndSlaveController |
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51 | ; Parameters: |
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52 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
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53 | ; Returns: |
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54 | ; AH: INT 13h Error Code |
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55 | ; CF: Cleared if success, Set if error |
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56 | ; Corrupts registers: |
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57 | ; AL, BX, CX, DX |
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58 | ;-------------------------------------------------------------------- |
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59 | %ifdef MODULE_JRIDE |
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60 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial |
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61 | Device_ResetMasterAndSlaveController: |
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62 | TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort |
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63 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .ResetJrIDE |
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64 | jmp IdeCommand_ResetMasterAndSlaveController |
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65 | |
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66 | %else ; IDE + JR-IDE/ISA |
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67 | Device_ResetMasterAndSlaveController: |
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68 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .ResetJrIDE |
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69 | jmp IdeCommand_ResetMasterAndSlaveController |
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70 | %endif |
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71 | |
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72 | %elifdef MODULE_SERIAL ; IDE + Serial |
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73 | Device_ResetMasterAndSlaveController: |
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74 | TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort |
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75 | jmp IdeCommand_ResetMasterAndSlaveController |
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76 | |
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77 | %else ; IDE |
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78 | Device_ResetMasterAndSlaveController EQU IdeCommand_ResetMasterAndSlaveController |
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79 | %endif |
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80 | |
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81 | %ifdef MODULE_JRIDE |
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82 | .ResetJrIDE: |
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83 | jmp MemIdeCommand_ResetMasterAndSlaveController |
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84 | %endif |
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85 | |
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86 | |
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87 | ;-------------------------------------------------------------------- |
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88 | ; Device_IdentifyToBufferInESSIwithDriveSelectByteInBH |
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89 | ; Parameters: |
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90 | ; BH: Drive Select byte for Drive and Head Select Register |
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91 | ; DS: Segment to RAMVARS |
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92 | ; ES:SI: Ptr to normalized buffer to receive 512-byte IDE Information |
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93 | ; CS:BP: Ptr to IDEVARS |
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94 | ; Returns: |
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95 | ; AH: INT 13h Error Code |
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96 | ; CF: Cleared if success, Set if error |
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97 | ; Corrupts registers: |
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98 | ; AL, BL, CX, DX, SI, DI, ES |
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99 | ;-------------------------------------------------------------------- |
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100 | %ifdef MODULE_JRIDE |
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101 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial |
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102 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH: |
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103 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort |
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104 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_JRIDE_ISA, .IdentifyDriveFromJrIde |
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105 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
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106 | |
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107 | %else ; IDE + JR-IDE/ISA |
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108 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH: |
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109 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_JRIDE_ISA, .IdentifyDriveFromJrIde |
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110 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
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111 | %endif |
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112 | |
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113 | %elifdef MODULE_SERIAL ; IDE + Serial |
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114 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH: |
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115 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort |
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116 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
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117 | |
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118 | %else ; IDE |
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119 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH EQU IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
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120 | %endif |
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121 | |
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122 | %ifdef MODULE_JRIDE |
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123 | .IdentifyDriveFromJrIde: |
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124 | jmp MemIdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
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125 | %endif |
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126 | |
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127 | %ifdef MODULE_SERIAL |
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128 | .IdentifyDriveFromSerialPort: |
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129 | jmp SerialCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
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130 | %endif |
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131 | |
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132 | |
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133 | ;-------------------------------------------------------------------- |
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134 | ; Device_OutputCommandWithParameters |
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135 | ; Parameters: |
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136 | ; BH: Default system timer ticks for timeout (can be ignored) |
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137 | ; BL: IDE Status Register bit to poll after command |
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138 | ; ES:SI: Ptr to normalized buffer (for data transfer commands) |
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139 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
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140 | ; SS:BP: Ptr to IDEPACK |
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141 | ; Returns: |
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142 | ; AH: INT 13h Error Code |
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143 | ; CF: Cleared if success, Set if error |
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144 | ; Corrupts registers: |
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145 | ; AL, BX, CX, DX, (ES:SI for data transfer commands) |
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146 | ;-------------------------------------------------------------------- |
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147 | %ifdef MODULE_JRIDE |
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148 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial |
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149 | Device_OutputCommandWithParameters: |
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150 | TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort |
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151 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .OutputCommandToJrIDE |
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152 | jmp IdeCommand_OutputWithParameters |
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153 | |
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154 | %else ; IDE + JR-IDE/ISA |
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155 | Device_OutputCommandWithParameters: |
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156 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .OutputCommandToJrIDE |
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157 | jmp IdeCommand_OutputWithParameters |
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158 | %endif |
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159 | |
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160 | %elifdef MODULE_SERIAL ; IDE + Serial |
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161 | Device_OutputCommandWithParameters: |
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162 | TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort |
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163 | jmp IdeCommand_OutputWithParameters |
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164 | |
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165 | %else ; IDE |
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166 | Device_OutputCommandWithParameters EQU IdeCommand_OutputWithParameters |
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167 | %endif |
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168 | |
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169 | %ifdef MODULE_JRIDE |
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170 | ALIGN JUMP_ALIGN |
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171 | .OutputCommandToJrIDE: |
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172 | jmp MemIdeCommand_OutputWithParameters |
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173 | %endif |
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174 | |
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175 | %ifdef MODULE_SERIAL |
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176 | ALIGN JUMP_ALIGN |
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177 | .OutputCommandToSerialPort: |
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178 | jmp SerialCommand_OutputWithParameters |
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179 | %endif |
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180 | |
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181 | |
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182 | ;-------------------------------------------------------------------- |
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183 | ; Device_SelectDrive |
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184 | ; Parameters: |
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185 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
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186 | ; SS:BP: Ptr to IDEPACK |
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187 | ; Returns: |
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188 | ; AH: INT 13h Error Code |
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189 | ; CF: Cleared if success, Set if error |
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190 | ; Corrupts registers: |
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191 | ; AL, BX, CX, DX |
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192 | ;-------------------------------------------------------------------- |
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193 | %ifdef MODULE_JRIDE |
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194 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial |
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195 | Device_SelectDrive: |
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196 | TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort |
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197 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .SelectJrIdeDrive |
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198 | jmp IdeCommand_SelectDrive |
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199 | |
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200 | %else ; IDE + JR-IDE/ISA |
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201 | Device_SelectDrive: |
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202 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .SelectJrIdeDrive |
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203 | jmp IdeCommand_SelectDrive |
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204 | %endif |
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205 | |
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206 | %elifdef MODULE_SERIAL ; IDE + Serial |
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207 | Device_SelectDrive: |
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208 | TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort |
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209 | jmp IdeCommand_SelectDrive |
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210 | |
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211 | %else ; IDE |
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212 | Device_SelectDrive EQU IdeCommand_SelectDrive |
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213 | %endif |
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214 | |
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215 | %ifdef MODULE_JRIDE |
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216 | ALIGN JUMP_ALIGN |
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217 | .SelectJrIdeDrive: |
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218 | jmp MemIdeCommand_SelectDrive |
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219 | %endif |
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220 | |
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221 | %ifdef MODULE_SERIAL |
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222 | ALIGN JUMP_ALIGN |
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223 | ReturnSuccessForSerialPort: |
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224 | xor ax, ax |
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225 | ret |
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226 | %endif |
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