43 lines
1.3 KiB
C
43 lines
1.3 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 distribution.
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*
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* Prefetch queue implementation header.
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*
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* Authors: gloriouscow, <https://github.com/dbalsom>
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* Miran Grca, <mgrca8@gmail.com>
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*
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* Copyright 2023 gloriouscow.
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* Copyright 2023 Miran Grca.
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*/
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#ifndef EMU_QUEUE_H
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#define EMU_QUEUE_H
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typedef enum queue_delay_t {
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DELAY_READ,
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DELAY_WRITE,
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DELAY_NONE
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} queue_delay_t;
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#define FLAG_PRELOADED 0x8000
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extern void queue_set_size(uintptr_t size);
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extern uintptr_t queue_get_len(void);
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extern int queue_is_full(void);
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extern uint16_t queue_get_preload(void);
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extern int queue_has_preload(void);
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extern void queue_set_preload(void);
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extern void queue_push8(uint8_t byte);
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extern void queue_push16(uint16_t word);
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extern uint8_t queue_pop(void);
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extern queue_delay_t queue_get_delay(void);
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extern void queue_flush(void);
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extern void queue_init(void);
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#endif /*EMU_QUEUE_H*/
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