mirror of
https://github.com/86Box/probing-tools.git
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97 lines
3.4 KiB
C
97 lines
3.4 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box Probing Tools distribution.
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*
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* Definitions for the common library for C-based tools.
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*
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*
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*
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* Authors: RichardG, <richardg867@gmail.com>
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*
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* Copyright 2021 RichardG.
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*
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*/
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#ifndef CLIB_SYS_H
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#define CLIB_SYS_H
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#include "clib.h"
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/* Interrupt functions. */
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#ifdef __WATCOMC__
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void cli();
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# pragma aux cli = "cli";
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void sti();
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# pragma aux sti = "sti";
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#else
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extern void cli();
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extern void sti();
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#endif
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/* Time functions. */
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#ifndef __WATCOMC__
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extern void delay(unsigned int ms);
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#endif
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/* Port I/O functions. */
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#ifdef __WATCOMC__
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uint8_t inb(uint16_t port);
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# pragma aux inb = "in al, dx" parm[dx] value[al];
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void outb(uint16_t port, uint8_t data);
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# pragma aux outb = "out dx, al" parm[dx][al];
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uint16_t inw(uint16_t port);
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# pragma aux inw = "in ax, dx" parm[dx] value[ax];
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void outw(uint16_t port, uint16_t data);
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# pragma aux outw = "out dx, ax" parm[dx][ax];
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# ifdef M_I386
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uint32_t inl(uint16_t port);
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# pragma aux inl = "in eax, dx" parm[dx] value[eax];
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void outl(uint16_t port, uint32_t data);
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# pragma aux outl = "out dx, eax" parm[dx][eax];
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# else
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/* Some manual prefixing trickery to perform 32-bit I/O and access
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the extended part of EAX in real mode. Exchanging is necessary
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due to Watcom ignoring the order registers are specified in... */
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uint32_t inl(uint16_t port);
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# pragma aux inl = "db 0x66" \
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"in ax, dx" /* in eax, dx */ \
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"mov cx, ax" \
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"db 0x66, 0xc1, 0xe8, 0x10" /* shr eax, 16 */ \
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"xchg ax, cx" parm[dx] value[ax cx];
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void outl(uint16_t port, uint32_t data);
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# pragma aux outl = "xchg ax, cx" \
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"db 0x66, 0xc1, 0xe0, 0x10" /* shl eax, 16 */ \
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"mov ax, cx" \
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"db 0x66" \
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"out dx, ax" /* out dx, eax */ \
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parm[dx][ax cx] modify[ax cx];
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# endif
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#else
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# if defined(__GNUC__) && !defined(__POSIX_UEFI__) && !defined(_WIN32)
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# define inb sys_inb
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# define outb sys_outb
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# define inw sys_inw
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# define outw sys_outw
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# define inl sys_inl
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# define outl sys_outl
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# include <sys/io.h>
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# undef inb
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# undef outb
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# undef inw
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# undef outw
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# undef inl
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# undef outl
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# endif
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extern uint8_t inb(uint16_t port);
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extern void outb(uint16_t port, uint8_t data);
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extern uint16_t inw(uint16_t port);
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extern void outw(uint16_t port, uint16_t data);
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extern uint32_t inl(uint16_t port);
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extern void outl(uint16_t port, uint32_t data);
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#endif
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extern uint16_t io_find_range(uint16_t size);
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#endif
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