156 lines
3.9 KiB
C
156 lines
3.9 KiB
C
/*
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* UAE - The Un*x Amiga Emulator
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*
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* custom chip support
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*
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* (c) 1995 Bernd Schmidt
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*/
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#include "md-pandora/rpt.h"
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/* These are the masks that are ORed together in the chipset_mask option.
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* If CSMASK_AGA is set, the ECS bits are guaranteed to be set as well. */
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#ifndef UAE_CUSTOM_H
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#define UAE_CUSTOM_H
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#define CSMASK_ECS_AGNUS 1
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#define CSMASK_ECS_DENISE 2
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#define CSMASK_AGA 4
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#define CSMASK_MASK (CSMASK_ECS_AGNUS | CSMASK_ECS_DENISE | CSMASK_AGA)
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extern int custom_init (void);
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extern void custom_prepare (void);
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extern void custom_reset (int hardreset);
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extern int intlev (void);
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extern void notice_new_xcolors (void);
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extern void init_row_map (void);
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extern void init_hz_full (void);
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extern void init_custom (void);
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extern bool picasso_requested_on;
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extern bool picasso_on;
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extern void set_picasso_hack_rate (int hz);
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extern unsigned long int hsync_counter;
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extern uae_u16 dmacon;
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extern uae_u16 intreq;
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extern int vpos;
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extern void update_copper (int until_hpos);
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STATIC_INLINE void do_copper (void)
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{
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int hpos = current_hpos ();
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update_copper (hpos);
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}
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#define dmaen(DMAMASK) (int)((DMAMASK & dmacon) && (dmacon & 0x200))
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#define SPCFLAG_STOP 2
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#define SPCFLAG_COPPER 4
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#define SPCFLAG_INT 8
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#define SPCFLAG_BRK 16
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#define SPCFLAG_EXTRA_CYCLES 32
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#define SPCFLAG_TRACE 64
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#define SPCFLAG_DOTRACE 128
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#define SPCFLAG_DOINT 256 /* arg, JIT fails without this.. */
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#define SPCFLAG_BLTNASTY 512
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#define SPCFLAG_EXEC 1024
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#define SPCFLAG_ACTION_REPLAY 2048
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#define SPCFLAG_TRAP 4096 /* enforcer-hack */
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#define SPCFLAG_MODE_CHANGE 8192
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#define SPCFLAG_END_COMPILE 16384
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extern uae_u16 adkcon;
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extern void INTREQ (uae_u16);
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extern void INTREQ_0 (uae_u16);
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extern void INTREQ_f (uae_u16);
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#define send_interrupt(num) (INTREQ_0(0x8000 | (1 << num)))
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STATIC_INLINE uae_u16 INTREQR (void)
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{
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return intreq;
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}
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/* maximums for statically allocated tables */
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#define MAXHPOS 227
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#define MAXVPOS 314
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/* PAL/NTSC values */
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#define MAXHPOS_PAL 227
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#define MAXHPOS_NTSC 227
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#define MAXVPOS_PAL 312
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#define MAXVPOS_NTSC 262
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#define VBLANK_ENDLINE_PAL 26
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#define VBLANK_ENDLINE_NTSC 21
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#define VBLANK_SPRITE_PAL 25
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#define VBLANK_SPRITE_NTSC 20
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#define VBLANK_HZ_PAL 50
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#define VBLANK_HZ_NTSC 60
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#define EQU_ENDLINE_PAL 8
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#define EQU_ENDLINE_NTSC 10
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extern int maxhpos;
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extern int maxvpos, maxvpos_nom;
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extern int minfirstline;
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extern int vblank_hz;
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#define DMA_AUD0 0x0001
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#define DMA_AUD1 0x0002
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#define DMA_AUD2 0x0004
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#define DMA_AUD3 0x0008
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#define DMA_DISK 0x0010
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#define DMA_SPRITE 0x0020
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#define DMA_BLITTER 0x0040
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#define DMA_COPPER 0x0080
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#define DMA_BITPLANE 0x0100
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#define DMA_MASTER 0x0200
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#define DMA_BLITPRI 0x0400
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/* 100 words give you 1600 horizontal pixels. Should be more than enough for
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* superhires. Don't forget to update the definition in genp2c.c as well.
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* needs to be larger for superhires support */
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#define MAX_WORDS_PER_LINE 100
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/* AGA mode color lookup tables */
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extern unsigned int xredcolors[256], xgreencolors[256], xbluecolors[256];
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#define RES_LORES 0
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#define RES_HIRES 1
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#define RES_SUPERHIRES 2
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#define RES_MAX 2
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/* get resolution from bplcon0 */
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STATIC_INLINE int GET_RES_DENISE (uae_u16 con0)
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{
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return ((con0) & 0x8000) ? RES_HIRES : RES_LORES;
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}
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STATIC_INLINE int GET_RES_AGNUS (uae_u16 con0)
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{
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if (!(currprefs.chipset_mask & CSMASK_ECS_AGNUS))
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con0 &= ~0x40; // no SUPERHIRES
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return ((con0) & 0x8000) ? RES_HIRES : ((con0) & 0x40) ? RES_SUPERHIRES : RES_LORES;
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}
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/* get sprite width from FMODE */
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#define GET_SPRITEWIDTH(FMODE) ((((FMODE) >> 2) & 3) == 3 ? 64 : (((FMODE) >> 2) & 3) == 0 ? 16 : 32)
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/* Compute the number of bitplanes from a value written to BPLCON0 */
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STATIC_INLINE int GET_PLANES(uae_u16 bplcon0)
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{
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if ((bplcon0 & 0x0010) && (bplcon0 & 0x7000))
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return 0; // >8 planes = 0 planes
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if (bplcon0 & 0x0010)
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return 8; // AGA 8-planes bit
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return (bplcon0 >> 12) & 7; // normal planes bits
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}
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extern void fpscounter_reset (void);
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extern int current_maxvpos (void);
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#endif
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