/*
** bootstrap.h -- This file is a part of the Amiga bootloader.
**
** Copyright 1993, 1994 by Hamish Macdonald
**
** Some minor additions by Michael Rausch 1-11-94
** Modified 11-May-94 by Geert Uytterhoeven
** (Geert.Uytterhoeven@cs.kuleuven.ac.be)
** - inline Supervisor() call
**
** This file is subject to the terms and conditions of the GNU General Public
** License. See the file COPYING in the main directory of this archive
** for more details.
**
*/
#ifndef BOOTSTRAP_H
#define BOOTSTRAP_H
#include <asm/amigatypes.h>
#include <asm/amigahw.h>
struct List {
struct Node *l_head;
struct Node *l_tail;
struct Node *l_tailpred;
u_char l_type;
u_char l_pad;
};
struct MemChunk {
struct MemChunk *mc_Next; /* pointer to next chunk */
u_long mc_Bytes; /* chunk byte size */
};
#define MEMF_CHIP (1<<1)
#define MEMF_FAST (1<<2)
#define MEMF_LOCAL (1<<8)
#define MEMF_CLEAR (1<<16)
struct MemHeader {
struct Node mh_Node;
u_short mh_Attributes; /* characteristics of this region */
struct MemChunk *mh_First; /* first free region */
void *mh_Lower; /* lower memory bound */
void *mh_Upper; /* upper memory bound+1 */
u_long mh_Free; /* total number of free bytes */
};
struct ExecBase {
u_char fill1[296];
u_short AttnFlags;
u_char fill2[24];
struct List MemList;
u_char fill3[194];
u_char VBlankFrequency;
u_char PowerSupplyFrequency;
u_char fill4[36];
u_long EClockFrequency;
};
#ifndef AFF_68020
#define AFB_68020 1
#define AFF_68020 (1<<AFB_68020)
#endif
#ifndef AFF_68030
#define AFB_68030 2
#define AFF_68030 (1<<AFB_68030)
#endif
#ifndef AFF_68040
#define AFB_68040 3
#define AFF_68040 (1<<AFB_68040)
#endif
#ifndef AFF_68881
#define AFB_68881 4
#define AFF_68881 (1<<AFB_68881)
#endif
#ifndef AFF_68882
#define AFB_68882 5
#define AFF_68882 (1<<AFB_68882)
#endif
#ifndef AFF_FPU40
#define AFB_FPU40 6
#define AFF_FPU40 (1<<AFB_FPU40)
#endif
/*
* GfxBase is now used to determine if AGA or ECS is present
*/
struct GfxBase {
u_char unused1[0xec];
u_char ChipRevBits0;
u_char unused2[5];
u_short monitor_id;
};
#ifndef GFXB_HR_AGNUS
#define GFXB_HR_AGNUS 0
#define GFXF_HR_AGNUS (1<<GFXB_HR_AGNUS)
#endif
#ifndef GFXB_HR_DENISE
#define GFXB_HR_DENISE 1
#define GFXF_HR_DENISE (1<<GFXB_HR_DENISE)
#endif
#ifndef GFXB_AA_ALICE
#define GFXB_AA_ALICE 2
#define GFXF_AA_ALICE (1<<GFXB_AA_ALICE)
#endif
#ifndef GFXB_AA_LISA
#define GFXB_AA_LISA 3
#define GFXF_AA_LISA (1<<GFXB_AA_LISA)
#endif
/*
* HiRes(=Big) Agnus present; i.e.
* 1MB chipmem, big blits (none of interest so far) and programmable sync
*/
#define GFXG_OCS (GFXF_HR_AGNUS)
/*
* HiRes Agnus/Denise present; we are running on ECS
*/
#define GFXG_ECS (GFXF_HR_AGNUS|GFXF_HR_DENISE)
/*
* Alice and Lisa present; we are running on AGA
*/
#define GFXG_AGA (GFXF_AA_ALICE|GFXF_AA_LISA)
struct Library;
extern struct ExecBase *SysBase;
static __inline void *
AllocMem (unsigned long byteSize,unsigned long requirements)
{
register void *_res __asm("d0");
register struct ExecBase *a6 __asm("a6") = SysBase;
register unsigned long d0 __asm("d0") = byteSize;
register unsigned long d1 __asm("d1") = requirements;
__asm __volatile ("jsr a6@(-0xc6)"
: "=r" (_res)
: "r" (a6), "r" (d0), "r" (d1)
: "a0","a1","d0","d1", "memory");
return _res;
}
static __inline void
CloseLibrary (struct Library *library)
{
register struct ExecBase *a6 __asm("a6") = SysBase;
register struct Library *a1 __asm("a1") = library;
__asm __volatile ("jsr a6@(-0x19e)"
: /* no output */
: "r" (a6), "r" (a1)
: "a0","a1","d0","d1", "memory");
}
static __inline void
Disable (void)
{
extern struct ExecBase *SysBase;
register struct ExecBase *a6 __asm("a6") = SysBase;
__asm __volatile ("jsr a6@(-0x78)"
: /* no output */
: "r" (a6)
: "a0","a1","d0","d1", "memory");
}
static __inline void
Enable (void)
{
register struct ExecBase *a6 __asm("a6") = SysBase;
__asm __volatile ("jsr a6@(-0x7e)"
: /* no output */
: "r" (a6)
: "a0","a1","d0","d1", "memory");
}
static __inline void
FreeMem (void * memoryBlock,unsigned long byteSize)
{
register struct ExecBase *a6 __asm("a6") = SysBase;
register void *a1 __asm("a1") = memoryBlock;
register unsigned long d0 __asm("d0") = byteSize;
__asm __volatile ("jsr a6@(-0xd2)"
: /* no output */
: "r" (a6), "r" (a1), "r" (d0)
: "a0","a1","d0","d1", "memory");
}
static __inline struct Library *
OpenLibrary (char *libName,unsigned long version)
{
register struct Library * _res __asm("d0");
register struct ExecBase *a6 __asm("a6") = SysBase;
register u_char *a1 __asm("a1") = libName;
register unsigned long d0 __asm("d0") = version;
__asm __volatile ("jsr a6@(-0x228)"
: "=r" (_res)
: "r" (a6), "r" (a1), "r" (d0)
: "a0","a1","d0","d1", "memory");
return _res;
}
static __inline void *
SuperState (void)
{
register void *_res __asm("d0");
register struct ExecBase *a6 __asm("a6") = SysBase;
__asm __volatile ("jsr a6@(-0x96)"
: "=r" (_res)
: "r" (a6)
: "a0","a1","d0","d1", "memory");
return _res;
}
static __inline void
CacheClearU (void)
{
register struct ExecBase *a6 __asm("a6") = SysBase;
__asm __volatile ("jsr a6@(-0x27c)"
: /* no output */
: "r" (a6)
: "a0","a1","d0","d1", "memory");
}
static __inline unsigned long
CacheControl (unsigned long cacheBits,unsigned long cacheMask)
{
register unsigned long _res __asm("d0");
register struct ExecBase *a6 __asm("a6") = SysBase;
register unsigned long d0 __asm("d0") = cacheBits;
register unsigned long d1 __asm("d1") = cacheMask;
__asm __volatile ("jsr a6@(-0x288)"
: "=r" (_res)
: "r" (a6), "r" (d0), "r" (d1)
: "a0","a1","d0","d1", "memory");
return _res;
}
static __inline unsigned long
Supervisor (unsigned long (*userfunc)())
{
register unsigned long _res __asm("d0");
register struct ExecBase *a6 __asm("a6") = SysBase;
register unsigned long (*a0)() __asm("a0") = userfunc;
/* gcc doesn't seem to like asm parameters in a5 */
__asm __volatile ("movel a5,sp@-;movel a0,a5;jsr a6@(-0x1e);movel sp@+,a5"
: "=r" (_res)
: "r" (a6), "r" (a0)
: "a0","a1","d0","d1","memory");
return _res;
}
struct ExpansionBase;
extern struct ExpansionBase *ExpansionBase;
static __inline struct ConfigDev *
FindConfigDev (struct ConfigDev *oldConfigDev,long manufacturer,long product)
{
register struct ConfigDev * _res __asm("d0");
register struct ExpansionBase* a6 __asm("a6") = ExpansionBase;
register struct ConfigDev *a0 __asm("a0") = oldConfigDev;
register long d0 __asm("d0") = manufacturer;
register long d1 __asm("d1") = product;
__asm __volatile ("jsr a6@(-0x48)"
: "=r" (_res)
: "r" (a6), "r" (a0), "r" (d0), "r" (d1)
: "a0","a1","d0","d1", "memory");
return _res;
}
struct GfxBase;
extern struct GfxBase *GfxBase;
struct View;
static __inline void
LoadView (struct View *view)
{
register struct GfxBase* a6 __asm("a6") = GfxBase;
register struct View *a1 __asm("a1") = view;
__asm __volatile ("jsr a6@(-0xde)"
: /* no output */
: "r" (a6), "r" (a1)
: "a0","a1","d0","d1", "memory");
}
static __inline void change_stack (char *stackp)
{
__asm__ volatile ("movel %0,sp\n\t" :: "g" (stackp) : "sp");
}
static __inline void disable_cache (void)
{
__asm__ volatile ("movec %0,cacr" :: "d" (0));
}
static __inline void disable_mmu (void)
{
if (SysBase->AttnFlags & AFF_68040)
__asm__ volatile ("moveq #0,d0;"
".long 0x4e7b0003;" /* movec d0,tc */
".long 0x4e7b0004;" /* movec d0,itt0 */
".long 0x4e7b0005;" /* movec d0,itt1 */
".long 0x4e7b0006;" /* movec d0,dtt0 */
".long 0x4e7b0007" /* movec d0,dtt1 */
: /* no outputs */
: /* no inputs */
: "d0");
else {
__asm__ volatile ("subl #4,sp;"
"pmove tc,sp@;"
"bclr #7,sp@;"
"pmove sp@,tc;"
"addl #4,sp");
if (SysBase->AttnFlags & AFF_68030)
__asm__ volatile ("clrl sp@-;"
".long 0xf0170800;" /* pmove sp@,tt0 */
".long 0xf0170c00;" /* pmove sp@,tt1 */
"addql #4,sp");
}
}
static __inline void jump_to (unsigned long addr)
{
__asm__ volatile ("jmp %0@" :: "a" (addr));
/* NOTREACHED */
}
#endif /* BOOTSTRAP_H */
