| 1 | /** @file
|
|---|
| 2 | * Inline routines for Watcom C.
|
|---|
| 3 | */
|
|---|
| 4 |
|
|---|
| 5 | /*
|
|---|
| 6 | * Copyright (C) 2010-2023 Oracle and/or its affiliates.
|
|---|
| 7 | *
|
|---|
| 8 | * This file is part of VirtualBox base platform packages, as
|
|---|
| 9 | * available from https://www.virtualbox.org.
|
|---|
| 10 | *
|
|---|
| 11 | * This program is free software; you can redistribute it and/or
|
|---|
| 12 | * modify it under the terms of the GNU General Public License
|
|---|
| 13 | * as published by the Free Software Foundation, in version 3 of the
|
|---|
| 14 | * License.
|
|---|
| 15 | *
|
|---|
| 16 | * This program is distributed in the hope that it will be useful, but
|
|---|
| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 19 | * General Public License for more details.
|
|---|
| 20 | *
|
|---|
| 21 | * You should have received a copy of the GNU General Public License
|
|---|
| 22 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
|---|
| 23 | *
|
|---|
| 24 | * SPDX-License-Identifier: GPL-3.0-only
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 | #ifndef VBOX_INCLUDED_SRC_Graphics_BIOS_inlines_h
|
|---|
| 28 | #define VBOX_INCLUDED_SRC_Graphics_BIOS_inlines_h
|
|---|
| 29 | #ifndef RT_WITHOUT_PRAGMA_ONCE
|
|---|
| 30 | # pragma once
|
|---|
| 31 | #endif
|
|---|
| 32 |
|
|---|
| 33 | extern unsigned inp(unsigned port);
|
|---|
| 34 | extern unsigned outp(unsigned port, unsigned value);
|
|---|
| 35 | extern unsigned inpw(unsigned port);
|
|---|
| 36 | extern unsigned outpw(unsigned port, unsigned value);
|
|---|
| 37 | #pragma intrinsic(inp,outp,inpw,outpw)
|
|---|
| 38 | #define inb(p) inp(p)
|
|---|
| 39 | #define outb(p, v) outp(p, v)
|
|---|
| 40 | #define inw(p) inpw(p)
|
|---|
| 41 | #define outw(p, v) outpw(p, v)
|
|---|
| 42 |
|
|---|
| 43 | /* Far byte/word/dword access routines. */
|
|---|
| 44 |
|
|---|
| 45 | inline uint8_t read_byte(uint16_t seg, uint16_t offset)
|
|---|
| 46 | {
|
|---|
| 47 | return( *(seg:>(uint8_t *)offset) );
|
|---|
| 48 | }
|
|---|
| 49 |
|
|---|
| 50 | inline void write_byte(uint16_t seg, uint16_t offset, uint8_t data)
|
|---|
| 51 | {
|
|---|
| 52 | *(seg:>(uint8_t *)offset) = data;
|
|---|
| 53 | }
|
|---|
| 54 |
|
|---|
| 55 | inline uint16_t read_word(uint16_t seg, uint16_t offset)
|
|---|
| 56 | {
|
|---|
| 57 | return( *(seg:>(uint16_t *)offset) );
|
|---|
| 58 | }
|
|---|
| 59 |
|
|---|
| 60 | inline void write_word(uint16_t seg, uint16_t offset, uint16_t data)
|
|---|
| 61 | {
|
|---|
| 62 | *(seg:>(uint16_t *)offset) = data;
|
|---|
| 63 | }
|
|---|
| 64 |
|
|---|
| 65 | inline uint32_t read_dword(uint16_t seg, uint16_t offset)
|
|---|
| 66 | {
|
|---|
| 67 | return( *(seg:>(uint32_t *)offset) );
|
|---|
| 68 | }
|
|---|
| 69 |
|
|---|
| 70 | inline void write_dword(uint16_t seg, uint16_t offset, uint32_t data)
|
|---|
| 71 | {
|
|---|
| 72 | *(seg:>(uint32_t *)offset) = data;
|
|---|
| 73 | }
|
|---|
| 74 |
|
|---|
| 75 | void int_enable(void);
|
|---|
| 76 | #pragma aux int_enable = "sti" modify exact [] nomemory;
|
|---|
| 77 |
|
|---|
| 78 | void int_disable(void);
|
|---|
| 79 | #pragma aux int_disable = "cli" modify exact [] nomemory;
|
|---|
| 80 |
|
|---|
| 81 | uint16_t int_query(void);
|
|---|
| 82 | #pragma aux int_query = \
|
|---|
| 83 | "pushf" \
|
|---|
| 84 | "pop ax" \
|
|---|
| 85 | value [ax] modify exact [ax] nomemory;
|
|---|
| 86 |
|
|---|
| 87 | void int_restore(uint16_t old_flags);
|
|---|
| 88 | #pragma aux int_restore = \
|
|---|
| 89 | "push ax" \
|
|---|
| 90 | "popf" \
|
|---|
| 91 | parm [ax] modify exact [] nomemory;
|
|---|
| 92 |
|
|---|
| 93 | void halt(void);
|
|---|
| 94 | #pragma aux halt = "hlt" modify exact [] nomemory;
|
|---|
| 95 |
|
|---|
| 96 | void halt_forever(void);
|
|---|
| 97 | #pragma aux halt_forever = \
|
|---|
| 98 | "forever:" \
|
|---|
| 99 | "hlt" \
|
|---|
| 100 | "jmp forever" \
|
|---|
| 101 | modify exact [] nomemory aborts;
|
|---|
| 102 |
|
|---|
| 103 | void rep_movsw(void __far *d, void __far *s, int nwords);
|
|---|
| 104 | #pragma aux rep_movsw = \
|
|---|
| 105 | "push ds" \
|
|---|
| 106 | "mov ds, dx" \
|
|---|
| 107 | "rep movsw" \
|
|---|
| 108 | "pop ds" \
|
|---|
| 109 | parm [es di] [dx si] [cx];
|
|---|
| 110 |
|
|---|
| 111 | int repe_cmpsb(void __far *d, void __far *s, int nbytes);
|
|---|
| 112 | #pragma aux repe_cmpsb = \
|
|---|
| 113 | "push ds" \
|
|---|
| 114 | "mov ds, dx" \
|
|---|
| 115 | "repe cmpsb" \
|
|---|
| 116 | "pop ds" \
|
|---|
| 117 | "mov ax, 0" \
|
|---|
| 118 | "jz match" \
|
|---|
| 119 | "inc al" \
|
|---|
| 120 | "match:" \
|
|---|
| 121 | parm [es di] [dx si] [cx] value [ax] modify nomemory;
|
|---|
| 122 |
|
|---|
| 123 | char __far *rep_insb(char __far *buffer, unsigned nbytes, unsigned port);
|
|---|
| 124 | #pragma aux rep_insb = ".286" "rep insb" parm [es di] [cx] [dx] value [es di] modify exact [cx di];
|
|---|
| 125 |
|
|---|
| 126 | char __far *rep_insw(char __far *buffer, unsigned nwords, unsigned port);
|
|---|
| 127 | #pragma aux rep_insw = ".286" "rep insw" parm [es di] [cx] [dx] value [es di] modify exact [cx di];
|
|---|
| 128 |
|
|---|
| 129 | char __far *rep_outsb(char __far *buffer, unsigned nbytes, unsigned port);
|
|---|
| 130 | #pragma aux rep_outsb = ".286" "rep outs dx,byte ptr es:[si]" parm [es si] [cx] [dx] value [es si] modify exact [cx si];
|
|---|
| 131 |
|
|---|
| 132 | char __far *rep_outsw(char __far *buffer, unsigned nwords, unsigned port);
|
|---|
| 133 | #pragma aux rep_outsw = ".286" "rep outs dx,word ptr es:[si]" parm [es si] [cx] [dx] value [es si] modify exact [cx si];
|
|---|
| 134 |
|
|---|
| 135 | uint16_t __far swap_16(uint16_t val);
|
|---|
| 136 | #pragma aux swap_16 = "xchg ah,al" parm [ax] value [ax] modify exact [ax] nomemory;
|
|---|
| 137 |
|
|---|
| 138 | uint32_t __far swap_32(uint32_t val);
|
|---|
| 139 | #pragma aux swap_32 = \
|
|---|
| 140 | "xchg ah, al" \
|
|---|
| 141 | "xchg dh, dl" \
|
|---|
| 142 | "xchg ax, dx" \
|
|---|
| 143 | parm [dx ax] value [dx ax] modify exact [dx ax] nomemory;
|
|---|
| 144 |
|
|---|
| 145 | extern void memsetb(uint16_t seg, uint16_t offset, uint16_t value, uint16_t count);
|
|---|
| 146 | #pragma aux memsetb = \
|
|---|
| 147 | "jcxz no_copy" \
|
|---|
| 148 | "rep stosb" \
|
|---|
| 149 | "no_copy:" \
|
|---|
| 150 | parm [es] [di] [ax] [cx];
|
|---|
| 151 |
|
|---|
| 152 | extern void memsetw(uint16_t seg, uint16_t offset, uint16_t value, uint16_t count);
|
|---|
| 153 | #pragma aux memsetw = \
|
|---|
| 154 | "jcxz no_copy" \
|
|---|
| 155 | "rep stosw" \
|
|---|
| 156 | "no_copy:" \
|
|---|
| 157 | parm [es] [di] [ax] [cx];
|
|---|
| 158 |
|
|---|
| 159 | extern void memcpyb(uint16_t dseg, uint16_t doffset, uint16_t sseg, uint16_t soffset, uint16_t count);
|
|---|
| 160 | #pragma aux memcpyb = \
|
|---|
| 161 | "jcxz no_copy" \
|
|---|
| 162 | "push ds" \
|
|---|
| 163 | "mov ds, dx" \
|
|---|
| 164 | "rep movsb" \
|
|---|
| 165 | "pop ds" \
|
|---|
| 166 | "no_copy:" \
|
|---|
| 167 | parm [es] [di] [dx] [si] [cx];
|
|---|
| 168 |
|
|---|
| 169 | extern void memcpyw(uint16_t dseg, uint16_t doffset, uint16_t sseg, uint16_t soffset, uint16_t count);
|
|---|
| 170 | #pragma aux memcpyw = \
|
|---|
| 171 | "jcxz no_copy" \
|
|---|
| 172 | "push ds" \
|
|---|
| 173 | "mov ds, dx" \
|
|---|
| 174 | "rep movsw" \
|
|---|
| 175 | "pop ds" \
|
|---|
| 176 | "no_copy:" \
|
|---|
| 177 | parm [es] [di] [dx] [si] [cx];
|
|---|
| 178 |
|
|---|
| 179 | #endif /* !VBOX_INCLUDED_SRC_Graphics_BIOS_inlines_h */
|
|---|
| 180 |
|
|---|
