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61 lines
1.6 KiB
C
61 lines
1.6 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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* Riva TNT hardware defines
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*
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* Authors: Connor Hyde <mario64crashed@gmail.com>
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*
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* Copyright 2024-2025 Connor Hyde
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*/
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <86Box/nv/vid_nv4_defines.h>
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// Structures
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typedef struct nv4_s
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{
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nv_base_t nvbase; // Base Nvidia structure
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} nv4_t;
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//
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// PTIMER
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//
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typedef struct nv4_ptimer_s
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{
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uint32_t interrupt_status; // PTIMER Interrupt status
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uint32_t interrupt_enable; // PTIMER Interrupt enable
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uint32_t clock_numerator; // PTIMER (tick?) numerator
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uint32_t clock_denominator; // PTIMER (tick?) denominator
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uint64_t time; // time
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uint32_t alarm; // The value of time when there should be an alarm
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} nv4_ptimer_t;
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//
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// Globals
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//
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extern const device_config_t nv4_config[];
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extern nv4_t* nv4; // Allocated at device startup
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//
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// Functions
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//
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// Device Core
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void nv4_init();
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void nv4_close(void* priv);
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void nv4_speed_changed(void *priv);
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void nv4_draw_cursor(svga_t* svga, int32_t drawline);
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void nv4_recalc_timings(svga_t* svga);
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void nv4_force_redraw(void* priv); |