[88] | 1 | ; Project name : XTIDE Universal BIOS |
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[3] | 2 | ; Description : Functions for printing drive detection strings. |
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| 3 | |
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[376] | 4 | ; |
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| 5 | ; XTIDE Universal BIOS and Associated Tools |
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team. |
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| 7 | ; |
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| 8 | ; This program is free software; you can redistribute it and/or modify |
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| 9 | ; it under the terms of the GNU General Public License as published by |
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| 10 | ; the Free Software Foundation; either version 2 of the License, or |
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| 11 | ; (at your option) any later version. |
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| 12 | ; |
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| 13 | ; This program is distributed in the hope that it will be useful, |
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | ; GNU General Public License for more details. |
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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| 18 | ; |
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| 19 | |
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[3] | 20 | ; Section containing code |
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| 21 | SECTION .text |
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| 22 | |
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| 23 | ;-------------------------------------------------------------------- |
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| 24 | ; Prints BIOS name and segment address where it is found. |
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| 25 | ; |
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| 26 | ; DetectPrint_RomFoundAtSegment |
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| 27 | ; Parameters: |
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| 28 | ; Nothing |
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| 29 | ; Returns: |
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| 30 | ; Nothing |
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| 31 | ; Corrupts registers: |
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[120] | 32 | ; AX, SI, DI |
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[3] | 33 | ;-------------------------------------------------------------------- |
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| 34 | DetectPrint_RomFoundAtSegment: |
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[88] | 35 | push bp |
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[97] | 36 | mov bp, sp |
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[3] | 37 | mov si, g_szRomAt |
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[88] | 38 | ePUSH_T ax, ROMVARS.szTitle ; Bios title string |
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| 39 | push cs ; BIOS segment |
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[242] | 40 | |
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| 41 | DetectPrint_BootMenuPrint_FormatCSSIfromParamsInSSBP_Relay: |
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[88] | 42 | jmp BootMenuPrint_FormatCSSIfromParamsInSSBP |
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[3] | 43 | |
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| 44 | |
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| 45 | ;-------------------------------------------------------------------- |
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[294] | 46 | ; DetectPrint_StartDetectWithMasterOrSlaveStringInCXandIdeVarsInCSBP |
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[3] | 47 | ; Parameters: |
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[233] | 48 | ; CS:CX: Ptr to "Master" or "Slave" string |
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[3] | 49 | ; CS:BP: Ptr to IDEVARS |
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[242] | 50 | ; SI: Ptr to template string |
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[3] | 51 | ; Returns: |
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| 52 | ; Nothing |
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| 53 | ; Corrupts registers: |
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[196] | 54 | ; AX, SI, DI, CX |
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[3] | 55 | ;-------------------------------------------------------------------- |
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[294] | 56 | DetectPrint_StartDetectWithMasterOrSlaveStringInCXandIdeVarsInCSBP: |
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[233] | 57 | mov ax, [cs:bp+IDEVARS.wPort] ; for IDE: AX=port address, DH=.bDevice |
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| 58 | mov dx, [cs:bp+IDEVARS.bDevice-1] ; for Serial: AL=port address>>2, AH=baud rate |
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| 59 | ; DL=COM number character, DH=.bDevice |
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[285] | 60 | %ifdef MODULE_JRIDE |
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| 61 | cmp dh, DEVICE_JRIDE_ISA |
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| 62 | eCMOVE ax, cs ; Use segment address for JR-IDE/ISA |
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| 63 | %endif |
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| 64 | |
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[242] | 65 | push bp ; setup stack for call to |
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[233] | 66 | mov bp, sp ; BootMenuPrint_FormatCSSIfromParamsInSSBP |
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| 67 | |
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| 68 | push cx ; Push "Master" or "Slave" |
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[242] | 69 | |
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[233] | 70 | mov cl, (g_szDetectPort-$$) & 0xff ; Setup print string for standard IDE |
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| 71 | ; Note that we modify only the low order bits of CX a lot here, |
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| 72 | ; saving code space rather than reloading CX completely. |
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| 73 | ; This optimization requires that all the g_szDetect* strings are |
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| 74 | ; on the same 256 byte page, which is checked in strings.asm. |
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[3] | 75 | |
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[277] | 76 | %ifdef MODULE_SERIAL |
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[244] | 77 | cmp dh, DEVICE_SERIAL_PORT ; Check if this is a serial device |
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[233] | 78 | |
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[244] | 79 | jnz .pushAndPrint ; CX = string to print, AX = port address, DX won't be used |
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[233] | 80 | |
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| 81 | mov cl, (g_szDetectCOM-$$) & 0xff ; Setup print string for COM ports |
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| 82 | push cx ; And push now. We use the fact that format strings can contain |
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| 83 | ; themselves format strings. |
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| 84 | |
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| 85 | push dx ; Push COM number character |
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[242] | 86 | ; If the string is going to be "Auto", we will push a NULL (zero) |
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| 87 | ; here for the COM port number, which will be eaten by the |
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| 88 | ; print routine (DisplayPrint_CharacterFromAL), resulting in |
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[235] | 89 | ; just "COM" being printed without a character after it. |
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[242] | 90 | |
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[233] | 91 | mov cl, (g_szDetectCOMAuto-$$) & 0xff ; Setup secondary print string for "Auto" |
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[242] | 92 | |
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[244] | 93 | test dl, dl ; Check if serial port "Auto" |
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[262] | 94 | jz .pushAndPrintSerial ; CX = string to print, AX and DX won't be used |
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[242] | 95 | |
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[233] | 96 | mov cl, (g_szDetectCOMLarge-$$) & 0xff ; Setup secondary print string for "COMn/xx.yK" |
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[3] | 97 | |
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[233] | 98 | mov al,ah ; baud rate divisor to AL |
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| 99 | cbw ; clear AH, AL will always be less than 128 |
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| 100 | xchg si,ax ; move AX to SI for divide |
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[242] | 101 | mov ax,1152 ; baud rate to display is 115200/divisor, the "00" is handled |
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[233] | 102 | ; in the print strings |
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[242] | 103 | cwd ; clear top 16-bits of dividend |
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[233] | 104 | div si ; and divide... Now AX = baud rate/100, DX = 0 (always a clean divide) |
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[242] | 105 | |
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[233] | 106 | mov si,10 ; Now separate the whole portion from the fractional for "K" display |
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| 107 | div si ; and divide... Now AX = baud rate/1000, DX = low order digit |
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[242] | 108 | |
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| 109 | cmp ax,si ; < 10: "2400", "9600", etc.; >= 10: "19.2K", "38.4K", etc. |
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[262] | 110 | jae .pushAndPrintSerial |
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[196] | 111 | |
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[233] | 112 | mov cl, (g_szDetectCOMSmall-$$) & 0xff ; Setup secondary print string for "COMn/XXy00" |
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[242] | 113 | |
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[294] | 114 | .pushAndPrintSerial: |
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[242] | 115 | .pushAndPrint: |
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[277] | 116 | %endif |
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[294] | 117 | |
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[233] | 118 | push cx ; Push print string |
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| 119 | push ax ; Push high order digits, or port address, or N/A |
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| 120 | push dx ; Push low order digit, or N/A |
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| 121 | |
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[334] | 122 | mov si, g_szDetectOuter ; Load SI with default wrapper string "IDE %s at %s: " |
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| 123 | |
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[242] | 124 | jmp short DetectPrint_BootMenuPrint_FormatCSSIfromParamsInSSBP_Relay |
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[196] | 125 | |
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| 126 | |
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[3] | 127 | ;-------------------------------------------------------------------- |
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[98] | 128 | ; DetectPrint_DriveNameFromBootnfoInESBX |
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[3] | 129 | ; Parameters: |
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[254] | 130 | ; ES:BX: Ptr to BOOTMENUINFO (if drive found) |
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[3] | 131 | ; Returns: |
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| 132 | ; Nothing |
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| 133 | ; Corrupts registers: |
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[88] | 134 | ; AX, SI |
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[3] | 135 | ;-------------------------------------------------------------------- |
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[98] | 136 | DetectPrint_DriveNameFromBootnfoInESBX: |
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[88] | 137 | push di |
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| 138 | push bx |
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| 139 | |
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[254] | 140 | lea si, [bx+BOOTMENUINFO.szDrvName] |
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[88] | 141 | mov bx, es |
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| 142 | CALL_DISPLAY_LIBRARY PrintNullTerminatedStringFromBXSI |
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| 143 | CALL_DISPLAY_LIBRARY PrintNewlineCharacters |
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| 144 | |
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| 145 | pop bx |
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| 146 | pop di |
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| 147 | ret |
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