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/** @file
* Inline routines for Watcom C.
*/
/*
* Copyright (C) 2010-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#ifndef VBOX_INCLUDED_SRC_Graphics_BIOS_inlines_h
#define VBOX_INCLUDED_SRC_Graphics_BIOS_inlines_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
extern unsigned inp(unsigned port);
extern unsigned outp(unsigned port, unsigned value);
extern unsigned inpw(unsigned port);
extern unsigned outpw(unsigned port, unsigned value);
#pragma intrinsic(inp,outp,inpw,outpw)
#define inb(p) inp(p)
#define outb(p, v) outp(p, v)
#define inw(p) inpw(p)
#define outw(p, v) outpw(p, v)
extern uint8_t read_byte(uint16_t seg, uint16_t offset);
extern uint16_t read_word(uint16_t seg, uint16_t offset);
extern uint32_t read_dword(uint16_t seg, uint16_t offset);
extern void write_byte(uint16_t seg, uint16_t offset, uint8_t data);
extern void write_word(uint16_t seg, uint16_t offset, uint16_t data);
extern void write_dword(uint16_t seg, uint16_t offset, uint32_t data);
void int_enable(void);
#pragma aux int_enable = "sti" modify exact [] nomemory;
void int_disable(void);
#pragma aux int_disable = "cli" modify exact [] nomemory;
uint16_t int_query(void);
#pragma aux int_query = \
"pushf" \
"pop ax" \
value [ax] modify exact [ax] nomemory;
void int_restore(uint16_t old_flags);
#pragma aux int_restore = \
"push ax" \
"popf" \
parm [ax] modify exact [] nomemory;
void halt(void);
#pragma aux halt = "hlt" modify exact [] nomemory;
void halt_forever(void);
#pragma aux halt_forever = \
"forever:" \
"hlt" \
"jmp forever" \
modify exact [] nomemory aborts;
void rep_movsw(void __far *d, void __far *s, int nwords);
#pragma aux rep_movsw = \
"push ds" \
"mov ds, dx" \
"rep movsw" \
"pop ds" \
parm [es di] [dx si] [cx];
char __far *rep_insb(char __far *buffer, unsigned nbytes, unsigned port);
#pragma aux rep_insb = ".286" "rep insb" parm [es di] [cx] [dx] value [es di] modify exact [cx di];
char __far *rep_insw(char __far *buffer, unsigned nwords, unsigned port);
#pragma aux rep_insw = ".286" "rep insw" parm [es di] [cx] [dx] value [es di] modify exact [cx di];
#if VBOX_BIOS_CPU >= 80386
char __far *rep_insd(char __far *buffer, unsigned ndwords, unsigned port);
# pragma aux rep_insd = ".386" "rep insd" parm [es di] [cx] [dx] value [es di] modify exact [cx di];
#endif
char __far *rep_outsb(char __far *buffer, unsigned nbytes, unsigned port);
#pragma aux rep_outsb = ".286" "rep outs dx,byte ptr es:[si]" parm [es si] [cx] [dx] value [es si] modify exact [cx si];
char __far *rep_outsw(char __far *buffer, unsigned nwords, unsigned port);
#pragma aux rep_outsw = ".286" "rep outs dx,word ptr es:[si]" parm [es si] [cx] [dx] value [es si] modify exact [cx si];
#if VBOX_BIOS_CPU >= 80386
char __far *rep_outsd(char __far *buffer, unsigned ndwords, unsigned port);
# pragma aux rep_outsd = ".386" "rep outs dx,dword ptr es:[si]" parm [es si] [cx] [dx] value [es si] modify exact [cx si];
#endif
uint16_t __far swap_16(uint16_t val);
#pragma aux swap_16 = "xchg ah,al" parm [ax] value [ax] modify exact [ax] nomemory;
uint32_t __far swap_32(uint32_t val);
#pragma aux swap_32 = \
"xchg ah, al" \
"xchg dh, dl" \
"xchg ax, dx" \
parm [dx ax] value [dx ax] modify exact [dx ax] nomemory;
//@todo: Do CLD elsewhere!
extern void memsetb(uint16_t seg, uint16_t offset, uint16_t value, uint16_t count);
#pragma aux memsetb = \
"cld" \
"jcxz no_copy" \
"rep stosb" \
"no_copy:" \
parm [es] [di] [ax] [cx];
//@todo: Do CLD elsewhere!
extern void memsetw(uint16_t seg, uint16_t offset, uint16_t value, uint16_t count);
#pragma aux memsetw = \
"cld" \
"jcxz no_copy" \
"rep stosw" \
"no_copy:" \
parm [es] [di] [ax] [cx];
//@todo: Do CLD elsewhere!
extern void memcpyb(uint16_t dseg, uint16_t doffset, uint16_t sseg, uint16_t soffset, uint16_t count);
#pragma aux memcpyb = \
"cld" \
"jcxz no_copy" \
"push ds" \
"mov ds, dx" \
"rep movsb" \
"pop ds" \
"no_copy:" \
parm [es] [di] [dx] [si] [cx];
//@todo: Do CLD elsewhere!
extern void memcpyw(uint16_t dseg, uint16_t doffset, uint16_t sseg, uint16_t soffset, uint16_t count);
#pragma aux memcpyw = \
"cld" \
"jcxz no_copy" \
"push ds" \
"mov ds, dx" \
"rep movsw" \
"pop ds" \
"no_copy:" \
parm [es] [di] [dx] [si] [cx];
#endif /* !VBOX_INCLUDED_SRC_Graphics_BIOS_inlines_h */
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