[1] | 1 | ;; @file
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[18] | 2 | ; VirtualBox YASM/NASM macros, structs, etc.
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[1] | 3 | ;
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| 4 |
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| 5 | ;
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[8155] | 6 | ; Copyright (C) 2006-2007 Sun Microsystems, Inc.
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[5999] | 7 | ;
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| 8 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | ; available from http://www.virtualbox.org. This file is free software;
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| 10 | ; you can redistribute it and/or modify it under the terms of the GNU
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| 11 | ; General Public License (GPL) as published by the Free Software
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| 12 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
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| 13 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 14 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | ;
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| 16 | ; The contents of this file may alternatively be used under the terms
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| 17 | ; of the Common Development and Distribution License Version 1.0
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| 18 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 19 | ; VirtualBox OSE distribution, in which case the provisions of the
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| 20 | ; CDDL are applicable instead of those of the GPL.
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| 21 | ;
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| 22 | ; You may elect to license modified versions of this file under the
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| 23 | ; terms and conditions of either the GPL or the CDDL or both.
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| 24 | ;
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[8155] | 25 | ; Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 26 | ; Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 27 | ; additional information or have any questions.
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| 28 | ;
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[1] | 29 |
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[6525] | 30 | %ifndef ___VBox_asmdefs_mac
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| 31 | %define ___VBox_asmdefs_mac
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[1] | 32 |
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| 33 | ;; @def VBOX_WITH_STATISTICS
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| 34 | ; When defined all statistics will be included in the build.
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| 35 | ; This is enabled by default in all debug builds.
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| 36 | %ifndef VBOX_WITH_STATISTICS
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| 37 | %ifdef DEBUG
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| 38 | %define VBOX_WITH_STATISTICS
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| 39 | %endif
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| 40 | %endif
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| 41 |
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| 42 | %include "iprt/asmdefs.mac"
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| 43 |
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| 44 |
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| 45 |
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[6525] | 46 | %ifndef VBOX_UART_BASE
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| 47 | %ifndef IPRT_UART_BASE
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| 48 | %define VBOX_UART_BASE 3f8h ; COM1 (see src/VBox/Runtime/common/log/logcom.cpp)
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| 49 | %else
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| 50 | %define VBOX_UART_BASE IPRT_UART_BASE
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| 51 | %endif
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| 52 | %endif
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| 53 | %ifndef VBOX_UART_RATE
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| 54 | %define VBOX_UART_RATE 12 ; 9600 bps
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| 55 | %endif
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| 56 | %ifndef VBOX_UART_PARAMS
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| 57 | %define VBOX_UART_PARAMS 00000011b ; 8n1
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| 58 | %endif
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[1] | 59 |
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| 60 |
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| 61 | ;;
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| 62 | ; Initializes the com port to 9600 baud 8n1.
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| 63 | ; al and dx are wasted.
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[6525] | 64 | ; @todo comport init doesn't quite work - therefore we no longer use this! :-/
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[1] | 65 | %macro COM_INIT 0
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| 66 | push eax
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| 67 | push edx
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| 68 |
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[6525] | 69 | mov dx, VBOX_UART_BASE + 3
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[1] | 70 | mov al, 80h
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| 71 | out dx, al ; make DL register accessible
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| 72 |
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[6525] | 73 | mov dx, VBOX_UART_BASE
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| 74 | mov ax, VBOX_UART_RATE
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[1] | 75 | out dx, ax ; write bps rate divisor
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| 76 |
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[6525] | 77 | mov dx, VBOX_UART_BASE + 3
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| 78 | mov al, VBOX_UART_PARAMS
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[1] | 79 | out dx, al ; write parameters
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| 80 |
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| 81 |
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| 82 | xor ax, ax
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[6525] | 83 | mov dx, VBOX_UART_BASE + 4 ; disconnect the UART from the int line
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[1] | 84 | out dx, al
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| 85 |
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[6525] | 86 | mov dx, VBOX_UART_BASE + 1 ; disable UART ints
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[1] | 87 | out dx, al
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| 88 |
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[6525] | 89 | mov dx, VBOX_UART_BASE + 2 ; disable the fifos (old software relies on it)
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[1] | 90 | out dx, al
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| 91 |
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[6525] | 92 | mov dx, VBOX_UART_BASE
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[1] | 93 | in al, dx ; clear receiver
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[6525] | 94 | mov dx, VBOX_UART_BASE + 5
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[1] | 95 | in al, dx ; clear line status
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| 96 | inc dx
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| 97 | in al, dx ; clear modem status
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| 98 |
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| 99 | pop edx
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| 100 | pop eax
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| 101 | %endmacro
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| 102 |
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| 103 |
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| 104 | ;;
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| 105 | ; writes string to comport
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| 106 | ; trashes nothing (uses stack though)
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| 107 |
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| 108 | %macro COM32_S_PRINT 1+
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| 109 | push esi
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| 110 | push ecx
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| 111 | push eax
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| 112 | mov ecx, edx
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| 113 | shl ecx, 16
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| 114 |
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| 115 | call %%stringend
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| 116 | %%string: db %1
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| 117 | %%stringend:
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| 118 | pop esi
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| 119 | mov cx, %%stringend - %%string
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| 120 | %%status:
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[6525] | 121 | mov dx, VBOX_UART_BASE + 5
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[1] | 122 | in al, dx
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| 123 | test al, 20h
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| 124 | jz short %%status
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| 125 |
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| 126 | mov al, [esi]
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[6525] | 127 | mov dx, VBOX_UART_BASE
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[1] | 128 | out dx, al
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| 129 | inc esi
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| 130 | dec cx
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| 131 | jnz short %%status
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| 132 |
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| 133 | %%status2:
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[6525] | 134 | mov dx, VBOX_UART_BASE + 5
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[1] | 135 | in al, dx
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| 136 | test al, 20h
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| 137 | jz short %%status2
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| 138 |
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| 139 | shr ecx, 16
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| 140 | mov dx, cx
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| 141 | pop eax
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| 142 | pop ecx
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| 143 | pop esi
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| 144 | %endmacro
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| 145 |
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| 146 | %macro COM64_S_PRINT 1+
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| 147 | push rsi
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| 148 | push rdx
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| 149 | push rcx
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| 150 | push rax
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| 151 |
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| 152 | jmp %%stringend
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| 153 | %%string: db %1
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| 154 | %%stringend:
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| 155 | lea rsi, [%%string wrt rip]
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| 156 | mov cx, %%stringend - %%string
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| 157 | %%status:
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[6525] | 158 | mov dx, VBOX_UART_BASE + 5
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[1] | 159 | in al, dx
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| 160 | test al, 20h
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| 161 | jz short %%status
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| 162 |
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| 163 | mov al, [rsi]
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[6525] | 164 | mov dx, VBOX_UART_BASE
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[1] | 165 | out dx, al
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| 166 | inc rsi
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| 167 | dec cx
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| 168 | jnz short %%status
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| 169 |
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| 170 | %%status2:
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[6525] | 171 | mov dx, VBOX_UART_BASE + 5
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[1] | 172 | in al, dx
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| 173 | test al, 20h
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| 174 | jz short %%status2
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| 175 |
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| 176 | pop rax
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| 177 | pop rcx
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| 178 | pop rdx
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| 179 | pop rsi
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| 180 | %endmacro
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| 181 |
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| 182 | %macro COM_S_PRINT 1+
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[3641] | 183 | %ifdef RT_ARCH_AMD64
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[1] | 184 | COM64_S_PRINT %1
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| 185 | %else
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| 186 | COM32_S_PRINT %1
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| 187 | %endif
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| 188 | %endmacro
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| 189 |
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| 190 |
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| 191 | ;; Write char.
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| 192 | ; trashes esi
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| 193 | %macro COM_CHAR 1
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| 194 | mov esi, eax
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| 195 | shl esi, 16
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| 196 | mov si, dx
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| 197 |
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| 198 | %%status:
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[6525] | 199 | mov dx, VBOX_UART_BASE + 5
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[1] | 200 | in al, dx
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| 201 | test al, 20h
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| 202 | jz short %%status
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| 203 |
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| 204 | mov al, %1
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[6525] | 205 | mov dx, VBOX_UART_BASE
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[1] | 206 | out dx, al
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| 207 |
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| 208 | %%status2:
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[6525] | 209 | mov dx, VBOX_UART_BASE + 5
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[1] | 210 | in al, dx
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| 211 | test al, 20h
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| 212 | jz short %%status2
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| 213 |
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| 214 | mov dx, si
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| 215 | shr esi, 16
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| 216 | mov ax, si
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| 217 | %endmacro
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| 218 |
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| 219 |
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| 220 | ;; Write char.
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| 221 | ; trashes nothing (uses stack though)
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| 222 |
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| 223 | %macro COM32_S_CHAR 1
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| 224 | push eax
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| 225 | push edx
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| 226 |
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| 227 | %%status:
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[6525] | 228 | mov dx, VBOX_UART_BASE + 5
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[1] | 229 | in al, dx
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| 230 | test al, 20h
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| 231 | jz short %%status
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| 232 |
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| 233 | mov al, %1
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[6525] | 234 | mov dx, VBOX_UART_BASE
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[1] | 235 | out dx, al
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| 236 |
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| 237 | %%status2:
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[6525] | 238 | mov dx, VBOX_UART_BASE + 5
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[1] | 239 | in al, dx
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| 240 | test al, 20h
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| 241 | jz short %%status2
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| 242 |
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| 243 | pop edx
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| 244 | pop eax
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| 245 | %endmacro
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| 246 |
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| 247 | %macro COM64_S_CHAR 1
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| 248 | push rax
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| 249 | push rdx
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| 250 |
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| 251 | %%status:
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[6525] | 252 | mov dx, VBOX_UART_BASE + 5
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[1] | 253 | in al, dx
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| 254 | test al, 20h
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| 255 | jz short %%status
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| 256 |
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| 257 | mov al, %1
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[6525] | 258 | mov dx, VBOX_UART_BASE
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[1] | 259 | out dx, al
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| 260 |
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| 261 | %%status2:
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[6525] | 262 | mov dx, VBOX_UART_BASE + 5
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[1] | 263 | in al, dx
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| 264 | test al, 20h
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| 265 | jz short %%status2
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| 266 |
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| 267 | pop rdx
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| 268 | pop rax
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| 269 | %endmacro
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| 270 |
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| 271 | %macro COM_S_CHAR 1
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[3641] | 272 | %ifdef RT_ARCH_AMD64
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[1] | 273 | COM64_S_CHAR %1
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| 274 | %else
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| 275 | COM32_S_CHAR %1
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| 276 | %endif
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| 277 | %endmacro
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| 278 |
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| 279 |
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| 280 | ;; Writes newline
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| 281 | ; trashes esi
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| 282 | %macro COM_NEWLINE 0
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| 283 | mov esi, eax
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| 284 | shl esi, 16
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| 285 | mov si, dx
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| 286 |
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| 287 | %%status1:
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[6525] | 288 | mov dx, VBOX_UART_BASE + 5
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[1] | 289 | in al, dx
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| 290 | test al, 20h
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| 291 | jz short %%status1
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| 292 |
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| 293 | mov al, 13
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[6525] | 294 | mov dx, VBOX_UART_BASE
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[1] | 295 | out dx, al
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| 296 |
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| 297 | %%status2:
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[6525] | 298 | mov dx, VBOX_UART_BASE + 5
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[1] | 299 | in al, dx
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| 300 | test al, 20h
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| 301 | jz short %%status2
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| 302 |
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| 303 | mov al, 10
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[6525] | 304 | mov dx, VBOX_UART_BASE
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[1] | 305 | out dx, al
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| 306 |
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| 307 | %%status3:
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[6525] | 308 | mov dx, VBOX_UART_BASE + 5
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[1] | 309 | in al, dx
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| 310 | test al, 20h
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| 311 | jz short %%status3
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| 312 |
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| 313 | mov dx, si
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| 314 | shr esi, 16
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| 315 | mov ax, si
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| 316 | %endmacro
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| 317 |
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| 318 |
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| 319 | ;; Writes newline
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| 320 | ; trashes nothing (uses stack though)
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| 321 |
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| 322 | %macro COM32_S_NEWLINE 0
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| 323 | push edx
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| 324 | push eax
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| 325 |
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| 326 | %%status1:
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[6525] | 327 | mov dx, VBOX_UART_BASE + 5
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[1] | 328 | in al, dx
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| 329 | test al, 20h
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| 330 | jz short %%status1
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| 331 |
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| 332 | mov al, 13
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[6525] | 333 | mov dx, VBOX_UART_BASE
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[1] | 334 | out dx, al
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| 335 |
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| 336 | %%status2:
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[6525] | 337 | mov dx, VBOX_UART_BASE + 5
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[1] | 338 | in al, dx
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| 339 | test al, 20h
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| 340 | jz short %%status2
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| 341 |
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| 342 | mov al, 10
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[6525] | 343 | mov dx, VBOX_UART_BASE
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[1] | 344 | out dx, al
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| 345 |
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| 346 | %%status3:
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[6525] | 347 | mov dx, VBOX_UART_BASE + 5
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[1] | 348 | in al, dx
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| 349 | test al, 20h
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| 350 | jz short %%status3
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| 351 |
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| 352 | pop eax
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| 353 | pop edx
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| 354 | %endmacro
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| 355 |
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| 356 | %macro COM64_S_NEWLINE 0
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| 357 | push rdx
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| 358 | push rax
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| 359 |
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| 360 | %%status1:
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[6525] | 361 | mov dx, VBOX_UART_BASE + 5
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[1] | 362 | in al, dx
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| 363 | test al, 20h
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| 364 | jz short %%status1
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| 365 |
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| 366 | mov al, 13
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[6525] | 367 | mov dx, VBOX_UART_BASE
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[1] | 368 | out dx, al
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| 369 |
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| 370 | %%status2:
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[6525] | 371 | mov dx, VBOX_UART_BASE + 5
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[1] | 372 | in al, dx
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| 373 | test al, 20h
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| 374 | jz short %%status2
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| 375 |
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| 376 | mov al, 10
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[6525] | 377 | mov dx, VBOX_UART_BASE
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[1] | 378 | out dx, al
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| 379 |
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| 380 | %%status3:
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[6525] | 381 | mov dx, VBOX_UART_BASE + 5
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[1] | 382 | in al, dx
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| 383 | test al, 20h
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| 384 | jz short %%status3
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| 385 |
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| 386 | pop rax
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| 387 | pop rdx
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| 388 | %endmacro
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| 389 |
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| 390 | %macro COM_S_NEWLINE 0
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[3641] | 391 | %ifdef RT_ARCH_AMD64
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[1] | 392 | COM64_S_NEWLINE
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| 393 | %else
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| 394 | COM32_S_NEWLINE
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| 395 | %endif
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| 396 | %endmacro
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| 397 |
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| 398 |
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| 399 | ;; Writes a dword from register to com port.
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| 400 | ; trashes esi, edi
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| 401 | ; edi cannot be used as input register
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| 402 | %macro COM_DWORD_REG 1
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| 403 | mov edi, ebx ; save ebx
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| 404 | mov ebx, %1 ; get value we're supposed to print
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| 405 | mov esi, eax ; save ax
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| 406 | shl esi, 16 ; save dx
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| 407 | mov si, dx
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| 408 |
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| 409 | mov ah, 8 ; loop counter.
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| 410 | %%daloop:
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| 411 | rol ebx, 4 ; shift next digit to the front
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| 412 |
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| 413 | %%status0:
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[6525] | 414 | mov dx, VBOX_UART_BASE + 5
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[1] | 415 | in al, dx
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| 416 | test al, 20h
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| 417 | jz short %%status0
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| 418 |
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| 419 | mov al, bl ; get next char
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| 420 | and al, 0fh
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| 421 | cmp al, 10
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| 422 | jae short %%hex ; yasm BUG! It sometimes generate a near jump here. YASMCHECK!
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| 423 | add al, '0'
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| 424 | jmp short %%print
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| 425 | %%hex:
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| 426 | add al, 'a' - 10
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| 427 | %%print:
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[6525] | 428 | mov dx, VBOX_UART_BASE
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[1] | 429 | out dx, al
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| 430 |
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| 431 | dec ah
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| 432 | jnz short %%daloop ; loop
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| 433 |
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| 434 | mov dx, si ; restore dx
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| 435 | shr esi, 16
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| 436 | mov ax, si ; restore ax
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| 437 | mov ebx, edi ; restore ebx
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| 438 | %endmacro
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| 439 |
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| 440 |
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| 441 | ;; Writes a dword from register to com port.
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| 442 | ; trashes nothing (uses stack though)
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| 443 |
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| 444 | %macro COM32_S_DWORD_REG 1
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| 445 | push edx
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| 446 | push eax
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| 447 | push ebx
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| 448 |
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| 449 | mov ebx, %1 ; get value we're supposed to print
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| 450 |
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| 451 | mov ah, 8 ; loop counter.
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| 452 | %%daloop:
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| 453 | rol ebx, 4 ; shift next digit to the front
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| 454 |
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| 455 | %%status0:
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[6525] | 456 | mov dx, VBOX_UART_BASE + 5
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[1] | 457 | in al, dx
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| 458 | test al, 20h
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| 459 | jz short %%status0
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| 460 |
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| 461 | mov al, bl ; get next char
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| 462 | and al, 0fh
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| 463 | cmp al, 10
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| 464 | jae short %%hex ; yasm BUG! It sometimes generate a near jump here. YASMCHECK!
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| 465 | add al, '0'
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| 466 | jmp short %%print
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| 467 | %%hex:
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| 468 | add al, 'a' - 10
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| 469 | %%print:
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[6525] | 470 | mov dx, VBOX_UART_BASE
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[1] | 471 | out dx, al
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| 472 |
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| 473 | dec ah
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| 474 | jnz short %%daloop ; loop
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| 475 |
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| 476 | pop ebx
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| 477 | pop eax
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| 478 | pop edx
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| 479 | %endmacro
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| 480 |
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| 481 | %macro COM64_S_DWORD_REG 1
|
---|
| 482 | push rdx
|
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| 483 | push rax
|
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| 484 | push rbx
|
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| 485 |
|
---|
| 486 | mov ebx, %1 ; get value we're supposed to print
|
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| 487 |
|
---|
| 488 | mov ah, 8 ; loop counter.
|
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| 489 | %%daloop:
|
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| 490 | rol ebx, 4 ; shift next digit to the front
|
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| 491 |
|
---|
| 492 | %%status0:
|
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[6525] | 493 | mov dx, VBOX_UART_BASE + 5
|
---|
[1] | 494 | in al, dx
|
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| 495 | test al, 20h
|
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| 496 | jz short %%status0
|
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| 497 |
|
---|
| 498 | mov al, bl ; get next char
|
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| 499 | and al, 0fh
|
---|
| 500 | cmp al, 10
|
---|
| 501 | jae short %%hex ; yasm BUG! It sometimes generate a near jump here. YASMCHECK!
|
---|
| 502 | add al, '0'
|
---|
| 503 | jmp short %%print
|
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| 504 | %%hex:
|
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| 505 | add al, 'a' - 10
|
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| 506 | %%print:
|
---|
[6525] | 507 | mov dx, VBOX_UART_BASE
|
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[1] | 508 | out dx, al
|
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| 509 |
|
---|
| 510 | dec ah
|
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| 511 | jnz short %%daloop ; loop
|
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| 512 |
|
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| 513 | pop rbx
|
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| 514 | pop rax
|
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| 515 | pop rdx
|
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| 516 | %endmacro
|
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| 517 |
|
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| 518 | %macro COM_S_DWORD_REG 1
|
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[3641] | 519 | %ifdef RT_ARCH_AMD64
|
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[1] | 520 | COM64_S_DWORD_REG %1
|
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| 521 | %else
|
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| 522 | COM32_S_DWORD_REG %1
|
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| 523 | %endif
|
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| 524 | %endmacro
|
---|
| 525 |
|
---|
| 526 |
|
---|
| 527 | ;; Writes a qword from register to com port.
|
---|
| 528 | ; trashes nothing (uses stack though)
|
---|
| 529 | %macro COM64_S_QWORD_REG 1
|
---|
| 530 | push rdx
|
---|
| 531 | push rax
|
---|
| 532 | push rbx
|
---|
| 533 |
|
---|
| 534 | mov rbx, %1 ; get value we're supposed to print
|
---|
| 535 |
|
---|
| 536 | mov ah, 16 ; loop counter.
|
---|
| 537 | %%daloop:
|
---|
| 538 | rol rbx, 4 ; shift next digit to the front
|
---|
| 539 |
|
---|
| 540 | %%status0:
|
---|
[6525] | 541 | mov dx, VBOX_UART_BASE + 5
|
---|
[1] | 542 | in al, dx
|
---|
| 543 | test al, 20h
|
---|
| 544 | jz short %%status0
|
---|
| 545 |
|
---|
| 546 | mov al, bl ; get next char
|
---|
| 547 | and al, 0fh
|
---|
| 548 | cmp al, 10
|
---|
| 549 | jae short %%hex ; yasm BUG! It sometimes generate a near jump here. YASMCHECK!
|
---|
| 550 | add al, '0'
|
---|
| 551 | jmp short %%print
|
---|
| 552 | %%hex:
|
---|
| 553 | add al, 'a' - 10
|
---|
| 554 | %%print:
|
---|
[6525] | 555 | mov dx, VBOX_UART_BASE
|
---|
[1] | 556 | out dx, al
|
---|
| 557 |
|
---|
| 558 | dec ah
|
---|
| 559 | jnz short %%daloop ; loop
|
---|
| 560 |
|
---|
| 561 | pop rbx
|
---|
| 562 | pop rax
|
---|
| 563 | pop rdx
|
---|
| 564 | %endmacro
|
---|
| 565 |
|
---|
| 566 |
|
---|
| 567 | ;; Writes a byte from register to com port.
|
---|
| 568 | ; trashes nothing (uses stack though)
|
---|
| 569 |
|
---|
| 570 | %macro COM32_S_BYTE_REG 1
|
---|
| 571 | push edx
|
---|
| 572 | push eax
|
---|
| 573 | push ebx
|
---|
| 574 |
|
---|
| 575 | mov ebx, %1 ; get value we're supposed to print
|
---|
| 576 |
|
---|
| 577 | mov ah, 2 ; loop counter.
|
---|
| 578 | ror ebx, 8 ; shift next digit to the front
|
---|
| 579 | %%daloop:
|
---|
| 580 | rol ebx, 4 ; shift next digit to the front
|
---|
| 581 |
|
---|
| 582 | %%status0:
|
---|
[6525] | 583 | mov dx, VBOX_UART_BASE + 5
|
---|
[1] | 584 | in al, dx
|
---|
| 585 | test al, 20h
|
---|
| 586 | jz short %%status0
|
---|
| 587 |
|
---|
| 588 | mov al, bl ; get next char
|
---|
| 589 | and al, 0fh
|
---|
| 590 | cmp al, 10
|
---|
| 591 | jae short %%hex ; yasm BUG! It sometimes generate a near jump here. YASMCHECK!
|
---|
| 592 | add al, '0'
|
---|
| 593 | jmp short %%print
|
---|
| 594 | %%hex:
|
---|
| 595 | add al, 'a' - 10
|
---|
| 596 | %%print:
|
---|
[6525] | 597 | mov dx, VBOX_UART_BASE
|
---|
[1] | 598 | out dx, al
|
---|
| 599 |
|
---|
| 600 | dec ah
|
---|
| 601 | jnz short %%daloop ; loop
|
---|
| 602 |
|
---|
| 603 | pop ebx
|
---|
| 604 | pop eax
|
---|
| 605 | pop edx
|
---|
| 606 | %endmacro
|
---|
| 607 |
|
---|
| 608 | %macro COM64_S_BYTE_REG 1
|
---|
| 609 | push rdx
|
---|
| 610 | push rax
|
---|
| 611 | push rbx
|
---|
| 612 |
|
---|
| 613 | mov ebx, %1 ; get value we're supposed to print
|
---|
| 614 |
|
---|
| 615 | mov ah, 2 ; loop counter.
|
---|
| 616 | ror ebx, 8 ; shift next digit to the front
|
---|
| 617 | %%daloop:
|
---|
| 618 | rol ebx, 4 ; shift next digit to the front
|
---|
| 619 |
|
---|
| 620 | %%status0:
|
---|
[6525] | 621 | mov dx, VBOX_UART_BASE + 5
|
---|
[1] | 622 | in al, dx
|
---|
| 623 | test al, 20h
|
---|
| 624 | jz short %%status0
|
---|
| 625 |
|
---|
| 626 | mov al, bl ; get next char
|
---|
| 627 | and al, 0fh
|
---|
| 628 | cmp al, 10
|
---|
| 629 | jae short %%hex ; yasm BUG! It sometimes generate a near jump here. YASMCHECK!
|
---|
| 630 | add al, '0'
|
---|
| 631 | jmp short %%print
|
---|
| 632 | %%hex:
|
---|
| 633 | add al, 'a' - 10
|
---|
| 634 | %%print:
|
---|
[6525] | 635 | mov dx, VBOX_UART_BASE
|
---|
[1] | 636 | out dx, al
|
---|
| 637 |
|
---|
| 638 | dec ah
|
---|
| 639 | jnz short %%daloop ; loop
|
---|
| 640 |
|
---|
| 641 | pop rbx
|
---|
| 642 | pop rax
|
---|
| 643 | pop rdx
|
---|
| 644 | %endmacro
|
---|
| 645 |
|
---|
| 646 | %macro COM_S_BYTE_REG 1
|
---|
[3641] | 647 | %ifdef RT_ARCH_AMD64
|
---|
[1] | 648 | COM64_S_BYTE_REG %1
|
---|
| 649 | %else
|
---|
| 650 | COM32_S_BYTE_REG %1
|
---|
| 651 | %endif
|
---|
| 652 | %endmacro
|
---|
| 653 |
|
---|
| 654 |
|
---|
| 655 |
|
---|
| 656 | ;; Writes a single hex digit from register to com port.
|
---|
| 657 | ; trashes nothing (uses stack though)
|
---|
| 658 |
|
---|
| 659 | %macro COM32_S_DIGIT_REG 1
|
---|
| 660 | push edx
|
---|
| 661 | push eax
|
---|
| 662 | push ebx
|
---|
| 663 |
|
---|
| 664 | mov ebx, %1 ; get value we're supposed to print
|
---|
| 665 | %%status0:
|
---|
[6525] | 666 | mov dx, VBOX_UART_BASE + 5
|
---|
[1] | 667 | in al, dx
|
---|
| 668 | test al, 20h
|
---|
| 669 | jz short %%status0
|
---|
| 670 |
|
---|
| 671 | mov al, bl ; get next char
|
---|
| 672 | and al, 0fh
|
---|
| 673 | cmp al, 10
|
---|
| 674 | jae short %%hex ; yasm BUG! It sometimes generate a near jump here. YASMCHECK!
|
---|
| 675 | add al, '0'
|
---|
| 676 | jmp short %%print
|
---|
| 677 | %%hex:
|
---|
| 678 | add al, 'a' - 10
|
---|
| 679 | %%print:
|
---|
[6525] | 680 | mov dx, VBOX_UART_BASE
|
---|
[1] | 681 | out dx, al
|
---|
| 682 |
|
---|
| 683 | pop ebx
|
---|
| 684 | pop eax
|
---|
| 685 | pop edx
|
---|
| 686 | %endmacro
|
---|
| 687 |
|
---|
| 688 | %macro COM64_S_DIGIT_REG 1
|
---|
| 689 | push rdx
|
---|
| 690 | push rax
|
---|
| 691 | push rbx
|
---|
| 692 |
|
---|
| 693 | mov ebx, %1 ; get value we're supposed to print
|
---|
| 694 | %%status0:
|
---|
[6525] | 695 | mov dx, VBOX_UART_BASE + 5
|
---|
[1] | 696 | in al, dx
|
---|
| 697 | test al, 20h
|
---|
| 698 | jz short %%status0
|
---|
| 699 |
|
---|
| 700 | mov al, bl ; get next char
|
---|
| 701 | and al, 0fh
|
---|
| 702 | cmp al, 10
|
---|
| 703 | jae short %%hex ; yasm BUG! It sometimes generate a near jump here. YASMCHECK!
|
---|
| 704 | add al, '0'
|
---|
| 705 | jmp short %%print
|
---|
| 706 | %%hex:
|
---|
| 707 | add al, 'a' - 10
|
---|
| 708 | %%print:
|
---|
[6525] | 709 | mov dx, VBOX_UART_BASE
|
---|
[1] | 710 | out dx, al
|
---|
| 711 |
|
---|
| 712 | pop rbx
|
---|
| 713 | pop rax
|
---|
| 714 | pop rdx
|
---|
| 715 | %endmacro
|
---|
| 716 |
|
---|
| 717 | %macro COM_S_DIGIT_REG 1
|
---|
[3641] | 718 | %ifdef RT_ARCH_AMD64
|
---|
[1] | 719 | COM64_S_DIGIT_REG %1
|
---|
| 720 | %else
|
---|
| 721 | COM32_S_DIGIT_REG %1
|
---|
| 722 | %endif
|
---|
| 723 | %endmacro
|
---|
| 724 |
|
---|
| 725 |
|
---|
| 726 | ;;
|
---|
| 727 | ; Loops for a while.
|
---|
| 728 | ; ecx is trashed.
|
---|
| 729 | %macro LOOP_A_WHILE 0
|
---|
| 730 |
|
---|
| 731 | xor ecx, ecx
|
---|
| 732 | dec ecx
|
---|
| 733 | shr ecx, 1
|
---|
| 734 | %%looplabel:
|
---|
| 735 | nop
|
---|
| 736 | nop
|
---|
| 737 | nop
|
---|
| 738 | dec ecx
|
---|
| 739 | jnz short %%looplabel
|
---|
| 740 |
|
---|
| 741 | %endmacro
|
---|
| 742 |
|
---|
| 743 |
|
---|
| 744 | ;;
|
---|
| 745 | ; Loops for a short while.
|
---|
| 746 | ; ecx is trashed.
|
---|
| 747 | %macro LOOP_SHORT_WHILE 0
|
---|
| 748 |
|
---|
| 749 | xor ecx, ecx
|
---|
| 750 | dec ecx
|
---|
| 751 | shr ecx, 4
|
---|
| 752 | %%looplabel:
|
---|
| 753 | nop
|
---|
| 754 | nop
|
---|
| 755 | dec ecx
|
---|
| 756 | jnz short %%looplabel
|
---|
| 757 |
|
---|
| 758 | %endmacro
|
---|
| 759 |
|
---|
| 760 | %endif
|
---|
| 761 |
|
---|