--- uae/src/memory.c 2018/04/24 16:38:39 1.1.1.1 +++ uae/src/memory.c 2018/04/24 17:18:31 1.1.1.17 @@ -9,544 +9,1748 @@ #include "sysconfig.h" #include "sysdeps.h" -#include "config.h" #include "options.h" +#include "uae.h" #include "memory.h" -#include "custom.h" -#include "cia.h" +#include "romlist.h" #include "ersatz.h" #include "zfile.h" +#include "custom.h" #include "events.h" #include "newcpu.h" -#include "compiler.h" +#include "autoconf.h" +#include "savestate.h" +#include "crc32.h" +#include "gui.h" -#ifdef USE_COMPILER +#ifdef USE_MAPPED_MEMORY #include #endif int ersatzkickfile = 0; -int buserr; -addrbank membanks[65536]; +uae_u32 allocated_chipmem; +uae_u32 allocated_fastmem; +uae_u32 allocated_bogomem; +uae_u32 allocated_gfxmem; +uae_u32 allocated_z3fastmem; +uae_u32 allocated_a3000lmem; +uae_u32 allocated_a3000hmem; -/* Default memory access functions */ +static long chip_filepos, bogo_filepos, a3000lmem_filepos, a3000hmem_filepos; + +/* Set if we notice during initialization that settings changed, + and we must clear all memory to prevent bogus contents from confusing + the Kickstart. */ +static int need_hardreset; + +/* The address space setting used during the last reset. */ +static int last_address_space_24; + +addrbank *mem_banks[65536]; -int default_check(CPTR a, ULONG b) +/* This has two functions. It either holds a host address that, when added + to the 68k address, gives the host address corresponding to that 68k + address (in which case the value in this array is even), OR it holds the + same value as mem_banks, for those banks that have baseaddr==0. In that + case, bit 0 is set (the memory access routines will take care of it). */ + +uae_u8 *baseaddr[65536]; + +#ifdef NO_INLINE_MEMORY_ACCESS +__inline__ uae_u32 longget (uaecptr addr) { - return 0; + return call_mem_get_func (get_mem_bank (addr).lget, addr); } - -UBYTE *default_xlate(CPTR a) +__inline__ uae_u32 wordget (uaecptr addr) { - fprintf(stderr, "Your Amiga program just did something terribly stupid\n"); - return 0; + return call_mem_get_func (get_mem_bank (addr).wget, addr); } - -UWORD default_awget(CPTR addr) +__inline__ uae_u32 byteget (uaecptr addr) { - default_xlate(addr); - return 0; + return call_mem_get_func (get_mem_bank (addr).bget, addr); } - -ULONG default_alget(CPTR addr) +__inline__ void longput (uaecptr addr, uae_u32 l) { - default_xlate(addr); - return 0; + call_mem_put_func (get_mem_bank (addr).lput, addr, l); +} +__inline__ void wordput (uaecptr addr, uae_u32 w) +{ + call_mem_put_func (get_mem_bank (addr).wput, addr, w); +} +__inline__ void byteput (uaecptr addr, uae_u32 b) +{ + call_mem_put_func (get_mem_bank (addr).bput, addr, b); } +#endif + +static uae_u32 chipmem_mask, chipmem_full_mask; +static uae_u32 kickmem_mask, extendedkickmem_mask, bogomem_mask; +static uae_u32 a3000lmem_mask, a3000hmem_mask; +static int illegal_count; /* A dummy bank that only contains zeros */ -static ULONG dummy_lget(CPTR) REGPARAM; -static UWORD dummy_wget(CPTR) REGPARAM; -static UBYTE dummy_bget(CPTR) REGPARAM; -static void dummy_lput(CPTR, ULONG) REGPARAM; -static void dummy_wput(CPTR, UWORD) REGPARAM; -static void dummy_bput(CPTR, UBYTE) REGPARAM; -static int dummy_check(CPTR addr, ULONG size) REGPARAM; +static uae_u32 dummy_lget (uaecptr) REGPARAM; +static uae_u32 dummy_wget (uaecptr) REGPARAM; +static uae_u32 dummy_bget (uaecptr) REGPARAM; +static void dummy_lput (uaecptr, uae_u32) REGPARAM; +static void dummy_wput (uaecptr, uae_u32) REGPARAM; +static void dummy_bput (uaecptr, uae_u32) REGPARAM; +static int dummy_check (uaecptr addr, uae_u32 size) REGPARAM; + +uae_u32 REGPARAM2 dummy_lget (uaecptr addr) +{ + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal lget at %08lx\n", addr); + } + } -ULONG dummy_lget(CPTR addr) -{ - if (illegal_mem) printf("Illegal lget at %08lx pc=%08lx\n",addr,m68k_getpc()); - return 0; + return 0xFFFFFFFF; } -UWORD dummy_wget(CPTR addr) +uae_u32 REGPARAM2 dummy_wget (uaecptr addr) { - if (illegal_mem) printf("Illegal wget at %08lx pc=%08lx\n",addr,m68k_getpc()); - return 0; + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal wget at %08lx\n", addr); + } + } + + return 0xFFFF; } -UBYTE dummy_bget(CPTR addr) +uae_u32 REGPARAM2 dummy_bget (uaecptr addr) { - if (illegal_mem) printf("Illegal bget at %08lx pc=%08lx\n",addr,m68k_getpc()); - return 0; + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal bget at %08lx\n", addr); + } + } + + return 0xFF; } -void dummy_lput(CPTR addr, ULONG l) +void REGPARAM2 dummy_lput (uaecptr addr, uae_u32 l) { - if (illegal_mem) printf("Illegal lput at %08lx pc=%08lx\n",addr,m68k_getpc()); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal lput at %08lx\n", addr); + } + } } -void dummy_wput(CPTR addr, UWORD w) + +void REGPARAM2 dummy_wput (uaecptr addr, uae_u32 w) { - if (illegal_mem) printf("Illegal wput at %08lx pc=%08lx\n",addr,m68k_getpc()); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal wput at %08lx\n", addr); + } + } } -void dummy_bput(CPTR addr, UBYTE b) + +void REGPARAM2 dummy_bput (uaecptr addr, uae_u32 b) { - if (illegal_mem) printf("Illegal bput at %08lx pc=%08lx\n",addr,m68k_getpc()); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal bput at %08lx\n", addr); + } + } } -int dummy_check(CPTR addr, ULONG size) +int REGPARAM2 dummy_check (uaecptr addr, uae_u32 size) { - if (illegal_mem) printf("Illegal check at %08lx pc=%08lx\n",addr,m68k_getpc()); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal check at %08lx\n", addr); + } + } + return 0; } /* Chip memory */ -ULONG chipmem_mask,kickmem_mask,bogomem_mask; - -UBYTE *chipmemory; - -static ULONG chipmem_alget(CPTR) REGPARAM; -static UWORD chipmem_awget(CPTR) REGPARAM; +uae_u8 *chipmemory; -static ULONG chipmem_lget(CPTR) REGPARAM; -static UWORD chipmem_wget(CPTR) REGPARAM; -static UBYTE chipmem_bget(CPTR) REGPARAM; -static void chipmem_lput(CPTR, ULONG) REGPARAM; -static void chipmem_wput(CPTR, UWORD) REGPARAM; -static void chipmem_bput(CPTR, UBYTE) REGPARAM; +static int chipmem_check (uaecptr addr, uae_u32 size) REGPARAM; +static uae_u8 *chipmem_xlate (uaecptr addr) REGPARAM; -static int chipmem_check(CPTR addr, ULONG size) REGPARAM; -static UBYTE *chipmem_xlate(CPTR addr) REGPARAM; - -ULONG chipmem_alget(CPTR addr) +uae_u32 REGPARAM2 chipmem_lget (uaecptr addr) { - UBYTE *m; + uae_u32 *m; + addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - m = chipmemory + addr; - return (((ULONG)m[0] << 24) + ((ULONG)m[1] << 16) - + ((ULONG)m[2] << 8) + ((ULONG)m[3])); + addr &= chipmem_mask; + m = (uae_u32 *)(chipmemory + addr); + return do_get_mem_long (m); } -UWORD chipmem_awget(CPTR addr) +uae_u32 REGPARAM2 chipmem_wget (uaecptr addr) { - UBYTE *m; + uae_u16 *m; + addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - m = chipmemory + addr; - return ((UWORD)m[0] << 8) + m[1]; + addr &= chipmem_mask; + m = (uae_u16 *)(chipmemory + addr); + return do_get_mem_word (m); } -ULONG chipmem_lget(CPTR addr) +uae_u32 REGPARAM2 chipmem_bget (uaecptr addr) { - UBYTE *m; addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - m = chipmemory + addr; - return (((ULONG)m[0] << 24) + ((ULONG)m[1] << 16) - + ((ULONG)m[2] << 8) + ((ULONG)m[3])); + addr &= chipmem_mask; + return chipmemory[addr]; } -UWORD chipmem_wget(CPTR addr) +void REGPARAM2 chipmem_lput (uaecptr addr, uae_u32 l) { - UBYTE *m; + uae_u32 *m; + addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - m = chipmemory + addr; - return ((UWORD)m[0] << 8) + m[1]; + addr &= chipmem_mask; + m = (uae_u32 *)(chipmemory + addr); + do_put_mem_long (m, l); } -UBYTE chipmem_bget(CPTR addr) +void REGPARAM2 chipmem_wput (uaecptr addr, uae_u32 w) { + uae_u16 *m; + addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - return chipmemory[addr]; + addr &= chipmem_mask; + m = (uae_u16 *)(chipmemory + addr); + do_put_mem_word (m, w); } -void chipmem_lput(CPTR addr, ULONG l) +void REGPARAM2 chipmem_bput (uaecptr addr, uae_u32 b) { - UBYTE *m; addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - m = chipmemory + addr; - m[0] = l >> 24; - m[1] = l >> 16; - m[2] = l >> 8; - m[3] = l; + addr &= chipmem_mask; + chipmemory[addr] = b; } -void chipmem_wput(CPTR addr, UWORD w) +uae_u32 REGPARAM2 chipmem_agnus_wget (uaecptr addr) { - UBYTE *m; - addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - m = chipmemory + addr; - m[0] = w >> 8; - m[1] = w; + uae_u16 *m; + + addr &= chipmem_full_mask; + m = (uae_u16 *)(chipmemory + addr); + return do_get_mem_word (m); } -void chipmem_bput(CPTR addr, UBYTE b) +void REGPARAM2 chipmem_agnus_wput (uaecptr addr, uae_u32 w) { - addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - chipmemory[addr] = b; + uae_u16 *m; + + addr &= chipmem_full_mask; + if (addr >= allocated_chipmem) + return; + m = (uae_u16 *)(chipmemory + addr); + do_put_mem_word (m, w); } -int chipmem_check(CPTR addr, ULONG size) +int REGPARAM2 chipmem_check (uaecptr addr, uae_u32 size) { addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; - return (addr + size) < chipmem_size; + addr &= chipmem_mask; + return (addr + size) <= allocated_chipmem; } -UBYTE *chipmem_xlate(CPTR addr) +uae_u8 REGPARAM2 *chipmem_xlate (uaecptr addr) { addr -= chipmem_start & chipmem_mask; - addr &= chipmem_size-1; + addr &= chipmem_mask; return chipmemory + addr; } /* Slow memory */ -static UBYTE *bogomemory; +static uae_u8 *bogomemory; -static ULONG bogomem_alget(CPTR) REGPARAM; -static UWORD bogomem_awget(CPTR) REGPARAM; -static ULONG bogomem_lget(CPTR) REGPARAM; -static UWORD bogomem_wget(CPTR) REGPARAM; -static UBYTE bogomem_bget(CPTR) REGPARAM; -static void bogomem_lput(CPTR, ULONG) REGPARAM; -static void bogomem_wput(CPTR, UWORD) REGPARAM; -static void bogomem_bput(CPTR, UBYTE) REGPARAM; -static int bogomem_check(CPTR addr, ULONG size) REGPARAM; -static UBYTE *bogomem_xlate(CPTR addr) REGPARAM; +static uae_u32 bogomem_lget (uaecptr) REGPARAM; +static uae_u32 bogomem_wget (uaecptr) REGPARAM; +static uae_u32 bogomem_bget (uaecptr) REGPARAM; +static void bogomem_lput (uaecptr, uae_u32) REGPARAM; +static void bogomem_wput (uaecptr, uae_u32) REGPARAM; +static void bogomem_bput (uaecptr, uae_u32) REGPARAM; +static int bogomem_check (uaecptr addr, uae_u32 size) REGPARAM; +static uae_u8 *bogomem_xlate (uaecptr addr) REGPARAM; -ULONG bogomem_alget(CPTR addr) +uae_u32 REGPARAM2 bogomem_lget (uaecptr addr) { - UBYTE *m; + uae_u32 *m; addr -= bogomem_start & bogomem_mask; - addr &= bogomem_size-1; - m = bogomemory + addr; - return (((ULONG)m[0] << 24) + ((ULONG)m[1] << 16) - + ((ULONG)m[2] << 8) + ((ULONG)m[3])); + addr &= bogomem_mask; + m = (uae_u32 *)(bogomemory + addr); + return do_get_mem_long (m); } -UWORD bogomem_awget(CPTR addr) +uae_u32 REGPARAM2 bogomem_wget (uaecptr addr) { - UBYTE *m; + uae_u16 *m; addr -= bogomem_start & bogomem_mask; - addr &= bogomem_size-1; - m = bogomemory + addr; - return ((UWORD)m[0] << 8) + m[1]; + addr &= bogomem_mask; + m = (uae_u16 *)(bogomemory + addr); + return do_get_mem_word (m); } -ULONG bogomem_lget(CPTR addr) +uae_u32 REGPARAM2 bogomem_bget (uaecptr addr) { - UBYTE *m; addr -= bogomem_start & bogomem_mask; - addr &= bogomem_size-1; - m = bogomemory + addr; - return (((ULONG)m[0] << 24) + ((ULONG)m[1] << 16) - + ((ULONG)m[2] << 8) + ((ULONG)m[3])); + addr &= bogomem_mask; + return bogomemory[addr]; } -UWORD bogomem_wget(CPTR addr) +void REGPARAM2 bogomem_lput (uaecptr addr, uae_u32 l) { - UBYTE *m; + uae_u32 *m; addr -= bogomem_start & bogomem_mask; - addr &= bogomem_size-1; - m = bogomemory + addr; - return ((UWORD)m[0] << 8) + m[1]; + addr &= bogomem_mask; + m = (uae_u32 *)(bogomemory + addr); + do_put_mem_long (m, l); } -UBYTE bogomem_bget(CPTR addr) +void REGPARAM2 bogomem_wput (uaecptr addr, uae_u32 w) { + uae_u16 *m; addr -= bogomem_start & bogomem_mask; - addr &= bogomem_size-1; - return bogomemory[addr]; + addr &= bogomem_mask; + m = (uae_u16 *)(bogomemory + addr); + do_put_mem_word (m, w); } -void bogomem_lput(CPTR addr, ULONG l) +void REGPARAM2 bogomem_bput (uaecptr addr, uae_u32 b) { - UBYTE *m; addr -= bogomem_start & bogomem_mask; - addr &= bogomem_size-1; - m = bogomemory + addr; - m[0] = l >> 24; - m[1] = l >> 16; - m[2] = l >> 8; - m[3] = l; + addr &= bogomem_mask; + bogomemory[addr] = b; } -void bogomem_wput(CPTR addr, UWORD w) +int REGPARAM2 bogomem_check (uaecptr addr, uae_u32 size) { - UBYTE *m; addr -= bogomem_start & bogomem_mask; - addr &= bogomem_size-1; - m = bogomemory + addr; - m[0] = w >> 8; - m[1] = w; + addr &= bogomem_mask; + return (addr + size) <= allocated_bogomem; } -void bogomem_bput(CPTR addr, UBYTE b) +uae_u8 REGPARAM2 *bogomem_xlate (uaecptr addr) { addr -= bogomem_start & bogomem_mask; - addr &= bogomem_size-1; - bogomemory[addr] = b; + addr &= bogomem_mask; + return bogomemory + addr; } -int bogomem_check(CPTR addr, ULONG size) +/* A3000 motherboard fastmemory. */ +static uae_u8 *a3000lmemory, *a3000hmemory; +uae_u32 a3000lmem_start, a3000hmem_start; + +static uae_u32 a3000lmem_lget (uaecptr) REGPARAM; +static uae_u32 a3000lmem_wget (uaecptr) REGPARAM; +static uae_u32 a3000lmem_bget (uaecptr) REGPARAM; +static void a3000lmem_lput (uaecptr, uae_u32) REGPARAM; +static void a3000lmem_wput (uaecptr, uae_u32) REGPARAM; +static void a3000lmem_bput (uaecptr, uae_u32) REGPARAM; +static int a3000lmem_check (uaecptr addr, uae_u32 size) REGPARAM; + +static uae_u32 REGPARAM2 a3000lmem_lget (uaecptr addr) { - addr -= bogomem_start & (bogomem_size-1); - addr &= bogomem_size-1; - return (addr + size) < bogomem_size; + uae_u32 *m; + addr &= a3000lmem_mask; + m = (uae_u32 *)(a3000lmemory + addr); + return do_get_mem_long (m); } -UBYTE *bogomem_xlate(CPTR addr) +static uae_u32 REGPARAM2 a3000lmem_wget (uaecptr addr) { - addr -= bogomem_start & (bogomem_size-1); - addr &= bogomem_size-1; - return bogomemory + addr; + uae_u16 *m; + addr &= a3000lmem_mask; + m = (uae_u16 *)(a3000lmemory + addr); + return do_get_mem_word (m); +} + +static uae_u32 REGPARAM2 a3000lmem_bget (uaecptr addr) +{ + addr &= a3000lmem_mask; + return a3000lmemory[addr]; +} + +static void REGPARAM2 a3000lmem_lput (uaecptr addr, uae_u32 l) +{ + uae_u32 *m; + addr &= a3000lmem_mask; + m = (uae_u32 *)(a3000lmemory + addr); + do_put_mem_long (m, l); +} + +static void REGPARAM2 a3000lmem_wput (uaecptr addr, uae_u32 w) +{ + uae_u16 *m; + addr &= a3000lmem_mask; + m = (uae_u16 *)(a3000lmemory + addr); + do_put_mem_word (m, w); +} + +static void REGPARAM2 a3000lmem_bput (uaecptr addr, uae_u32 b) +{ + addr &= a3000lmem_mask; + a3000lmemory[addr] = b; +} + +static int REGPARAM2 a3000lmem_check (uaecptr addr, uae_u32 size) +{ + addr &= a3000lmem_mask; + return (addr + size) <= allocated_a3000lmem; +} + +static uae_u8 *REGPARAM2 a3000lmem_xlate (uaecptr addr) +{ + addr &= a3000lmem_mask; + return a3000lmemory + addr; +} + +static uae_u32 a3000hmem_lget (uaecptr) REGPARAM; +static uae_u32 a3000hmem_wget (uaecptr) REGPARAM; +static uae_u32 a3000hmem_bget (uaecptr) REGPARAM; +static void a3000hmem_lput (uaecptr, uae_u32) REGPARAM; +static void a3000hmem_wput (uaecptr, uae_u32) REGPARAM; +static void a3000hmem_bput (uaecptr, uae_u32) REGPARAM; +static int a3000hmem_check (uaecptr addr, uae_u32 size) REGPARAM; +static uae_u8 *a3000hmem_xlate (uaecptr addr) REGPARAM; + +static uae_u32 REGPARAM2 a3000hmem_lget (uaecptr addr) +{ + uae_u32 *m; + addr &= a3000hmem_mask; + m = (uae_u32 *)(a3000hmemory + addr); + return do_get_mem_long (m); +} + +static uae_u32 REGPARAM2 a3000hmem_wget (uaecptr addr) +{ + uae_u16 *m; + addr &= a3000hmem_mask; + m = (uae_u16 *)(a3000hmemory + addr); + return do_get_mem_word (m); +} + +static uae_u32 REGPARAM2 a3000hmem_bget (uaecptr addr) +{ + addr &= a3000hmem_mask; + return a3000hmemory[addr]; +} + +static void REGPARAM2 a3000hmem_lput (uaecptr addr, uae_u32 l) +{ + uae_u32 *m; + addr &= a3000hmem_mask; + m = (uae_u32 *)(a3000hmemory + addr); + do_put_mem_long (m, l); +} + +static void REGPARAM2 a3000hmem_wput (uaecptr addr, uae_u32 w) +{ + uae_u16 *m; + addr &= a3000hmem_mask; + m = (uae_u16 *)(a3000hmemory + addr); + do_put_mem_word (m, w); +} + +static void REGPARAM2 a3000hmem_bput (uaecptr addr, uae_u32 b) +{ + addr &= a3000hmem_mask; + a3000hmemory[addr] = b; +} + +static int REGPARAM2 a3000hmem_check (uaecptr addr, uae_u32 size) +{ + addr &= a3000hmem_mask; + return (addr + size) <= allocated_a3000hmem; +} + +static uae_u8 *REGPARAM2 a3000hmem_xlate (uaecptr addr) +{ + addr &= a3000hmem_mask; + return a3000hmemory + addr; } /* Kick memory */ -static int zkickfile = 0; -UBYTE *kickmemory; +uae_u8 *kickmemory; +uae_u16 kickstart_version; + +/* + * A1000 kickstart RAM handling + * + * RESET instruction unhides boot ROM and disables write protection + * write access to boot ROM hides boot ROM and enables write protection + * + */ +static int a1000_kickstart_mode; +static uae_u8 *a1000_bootrom; +static void a1000_handle_kickstart (int mode) +{ + if (!a1000_bootrom) + return; + if (mode == 0) { + a1000_kickstart_mode = 0; + memcpy (kickmemory, kickmemory + 262144, 262144); + kickstart_version = (kickmemory[262144 + 12] << 8) | kickmemory[262144 + 13]; + } else { + a1000_kickstart_mode = 1; + memcpy (kickmemory, a1000_bootrom, 262144); + kickstart_version = 0; + } +} + +void a1000_reset (void) +{ + a1000_handle_kickstart (1); +} -static ULONG kickmem_alget(CPTR) REGPARAM; -static UWORD kickmem_awget(CPTR) REGPARAM; -static ULONG kickmem_lget(CPTR) REGPARAM; -static UWORD kickmem_wget(CPTR) REGPARAM; -static UBYTE kickmem_bget(CPTR) REGPARAM; -static void kickmem_lput(CPTR, ULONG) REGPARAM; -static void kickmem_wput(CPTR, UWORD) REGPARAM; -static void kickmem_bput(CPTR, UBYTE) REGPARAM; -static int kickmem_check(CPTR addr, ULONG size) REGPARAM; -static UBYTE *kickmem_xlate(CPTR addr) REGPARAM; +static uae_u32 kickmem_lget (uaecptr) REGPARAM; +static uae_u32 kickmem_wget (uaecptr) REGPARAM; +static uae_u32 kickmem_bget (uaecptr) REGPARAM; +static void kickmem_lput (uaecptr, uae_u32) REGPARAM; +static void kickmem_wput (uaecptr, uae_u32) REGPARAM; +static void kickmem_bput (uaecptr, uae_u32) REGPARAM; +static int kickmem_check (uaecptr addr, uae_u32 size) REGPARAM; +static uae_u8 *kickmem_xlate (uaecptr addr) REGPARAM; -ULONG kickmem_alget(CPTR addr) +uae_u32 REGPARAM2 kickmem_lget (uaecptr addr) { - UBYTE *m; + uae_u32 *m; addr -= kickmem_start & kickmem_mask; - addr &= kickmem_size-1; - m = kickmemory + addr; - return (((ULONG)m[0] << 24) + ((ULONG)m[1] << 16) - + ((ULONG)m[2] << 8) + ((ULONG)m[3])); + addr &= kickmem_mask; + m = (uae_u32 *)(kickmemory + addr); + return do_get_mem_long (m); } -UWORD kickmem_awget(CPTR addr) +uae_u32 REGPARAM2 kickmem_wget (uaecptr addr) { - UBYTE *m; + uae_u16 *m; addr -= kickmem_start & kickmem_mask; - addr &= kickmem_size-1; - m = kickmemory + addr; - return ((UWORD)m[0] << 8) + m[1]; + addr &= kickmem_mask; + m = (uae_u16 *)(kickmemory + addr); + return do_get_mem_word (m); } -ULONG kickmem_lget(CPTR addr) +uae_u32 REGPARAM2 kickmem_bget (uaecptr addr) { - UBYTE *m; addr -= kickmem_start & kickmem_mask; - addr &= kickmem_size-1; - m = kickmemory + addr; - return (((ULONG)m[0] << 24) + ((ULONG)m[1] << 16) - + ((ULONG)m[2] << 8) + ((ULONG)m[3])); + addr &= kickmem_mask; + return kickmemory[addr]; +} + +void REGPARAM2 kickmem_lput (uaecptr addr, uae_u32 b) +{ + uae_u32 *m; + if (a1000_kickstart_mode) { + if (addr >= 0xfc0000) { + addr -= kickmem_start & kickmem_mask; + addr &= kickmem_mask; + m = (uae_u32 *)(kickmemory + addr); + do_put_mem_long (m, b); + return; + } else + a1000_handle_kickstart (0); + } else if (currprefs.illegal_mem) + write_log ("Illegal kickmem lput at %08lx\n", addr); +} + +void REGPARAM2 kickmem_wput (uaecptr addr, uae_u32 b) +{ + uae_u16 *m; + if (a1000_kickstart_mode) { + if (addr >= 0xfc0000) { + addr -= kickmem_start & kickmem_mask; + addr &= kickmem_mask; + m = (uae_u16 *)(kickmemory + addr); + do_put_mem_word (m, b); + return; + } else + a1000_handle_kickstart (0); + } else if (currprefs.illegal_mem) + write_log ("Illegal kickmem wput at %08lx\n", addr); +} + +void REGPARAM2 kickmem_bput (uaecptr addr, uae_u32 b) +{ + if (a1000_kickstart_mode) { + if (addr >= 0xfc0000) { + addr -= kickmem_start & kickmem_mask; + addr &= kickmem_mask; + kickmemory[addr] = b; + return; + } else + a1000_handle_kickstart (0); + } else if (currprefs.illegal_mem) + write_log ("Illegal kickmem lput at %08lx\n", addr); } -UWORD kickmem_wget(CPTR addr) +int REGPARAM2 kickmem_check (uaecptr addr, uae_u32 size) { - UBYTE *m; addr -= kickmem_start & kickmem_mask; - addr &= kickmem_size-1; - m = kickmemory + addr; - return ((UWORD)m[0] << 8) + m[1]; + addr &= kickmem_mask; + return (addr + size) <= kickmem_size; } -UBYTE kickmem_bget(CPTR addr) +uae_u8 REGPARAM2 *kickmem_xlate (uaecptr addr) { addr -= kickmem_start & kickmem_mask; - addr &= kickmem_size-1; - return kickmemory[addr]; + addr &= kickmem_mask; + return kickmemory + addr; } -void kickmem_lput(CPTR addr, ULONG b) +/* CD32/CDTV extended kick memory */ + +uae_u8 *extendedkickmemory; +static int extendedkickmem_size; +static uae_u32 extendedkickmem_start; + +#define EXTENDED_ROM_CD32 1 +#define EXTENDED_ROM_CDTV 2 + +static int extromtype (void) +{ + switch (extendedkickmem_size) { + case 524288: + return EXTENDED_ROM_CD32; + case 262144: + return EXTENDED_ROM_CDTV; + } + return 0; +} + +static uae_u32 extendedkickmem_lget (uaecptr) REGPARAM; +static uae_u32 extendedkickmem_wget (uaecptr) REGPARAM; +static uae_u32 extendedkickmem_bget (uaecptr) REGPARAM; +static void extendedkickmem_lput (uaecptr, uae_u32) REGPARAM; +static void extendedkickmem_wput (uaecptr, uae_u32) REGPARAM; +static void extendedkickmem_bput (uaecptr, uae_u32) REGPARAM; +static int extendedkickmem_check (uaecptr addr, uae_u32 size) REGPARAM; +static uae_u8 *extendedkickmem_xlate (uaecptr addr) REGPARAM; + +static uae_u32 REGPARAM2 extendedkickmem_lget (uaecptr addr) { - if (illegal_mem) printf("Illegal kickmem lput at %08lx pc=%08lx\n",addr,m68k_getpc()); + uae_u32 *m; + addr -= extendedkickmem_start & extendedkickmem_mask; + addr &= extendedkickmem_mask; + m = (uae_u32 *)(extendedkickmemory + addr); + return do_get_mem_long (m); } -void kickmem_wput(CPTR addr, UWORD b) +static uae_u32 REGPARAM2 extendedkickmem_wget (uaecptr addr) { - if (illegal_mem) printf("Illegal kickmem wput at %08lx pc=%08lx\n",addr,m68k_getpc()); + uae_u16 *m; + addr -= extendedkickmem_start & extendedkickmem_mask; + addr &= extendedkickmem_mask; + m = (uae_u16 *)(extendedkickmemory + addr); + return do_get_mem_word (m); } -void kickmem_bput(CPTR addr, UBYTE b) +static uae_u32 REGPARAM2 extendedkickmem_bget (uaecptr addr) { - if (illegal_mem) printf("Illegal kickmem lput at %08lx pc=%08lx\n",addr,m68k_getpc()); + addr -= extendedkickmem_start & extendedkickmem_mask; + addr &= extendedkickmem_mask; + return extendedkickmemory[addr]; } -int kickmem_check(CPTR addr, ULONG size) +static void REGPARAM2 extendedkickmem_lput (uaecptr addr, uae_u32 b) { - addr -= kickmem_start & (kickmem_size-1); - addr &= kickmem_size-1; - return (addr + size) < kickmem_size; + if (currprefs.illegal_mem) + write_log ("Illegal extendedkickmem lput at %08lx\n", addr); } -UBYTE *kickmem_xlate(CPTR addr) +static void REGPARAM2 extendedkickmem_wput (uaecptr addr, uae_u32 b) { - addr -= kickmem_start & (kickmem_size-1); - addr &= kickmem_size-1; - return kickmemory + addr; + if (currprefs.illegal_mem) + write_log ("Illegal extendedkickmem wput at %08lx\n", addr); } -static int load_kickstart(void) +static void REGPARAM2 extendedkickmem_bput (uaecptr addr, uae_u32 b) { - int i; - ULONG cksum = 0, prevck = 0; - unsigned char buffer[8]; - - FILE *f = zfile_open(romfile, "rb"); - - if (f == NULL) { - fprintf(stderr, "No Kickstart ROM found.\n"); - return 0; - } - - fread(buffer, 1, 8, f); - if (buffer[4] == 0 && buffer[5] == 8 && buffer[6] == 0 && buffer[7] == 0) { - fprintf(stderr, "You seem to have a ZKick file there... You probably lose.\n"); - zkickfile = 1; - } else - fseek(f, 0, SEEK_SET); - - i = fread(kickmemory, 1, kickmem_size, f); - if (i == kickmem_size/2) { - fprintf(stderr, "Warning: Kickstart is only 256K.\n"); - memcpy (kickmemory + kickmem_size/2, kickmemory, kickmem_size/2); - } else if (i != kickmem_size) { - fprintf(stderr, "Error while reading Kickstart.\n"); - return 0; - } - zfile_close (f); - - for (i = 0; i < kickmem_size; i+=4) { - ULONG data = kickmemory[i]*65536*256 + kickmemory[i+1]*65536 + kickmemory[i+2]*256 + kickmemory[i+3]; - cksum += data; - if (cksum < prevck) - cksum++; - prevck = cksum; - } - if (cksum != 0xFFFFFFFF) { - fprintf(stderr, "Warning: Kickstart checksum incorrect. You probably have a corrupted ROM image.\n"); - } - return 1; + if (currprefs.illegal_mem) + write_log ("Illegal extendedkickmem lput at %08lx\n", addr); +} + +static int REGPARAM2 extendedkickmem_check (uaecptr addr, uae_u32 size) +{ + addr -= extendedkickmem_start & extendedkickmem_mask; + addr &= extendedkickmem_mask; + return (addr + size) <= extendedkickmem_size; +} + +static uae_u8 REGPARAM2 *extendedkickmem_xlate (uaecptr addr) +{ + addr -= extendedkickmem_start & extendedkickmem_mask; + addr &= extendedkickmem_mask; + return extendedkickmemory + addr; +} + +/* Default memory access functions */ + +int REGPARAM2 default_check (uaecptr a, uae_u32 b) +{ + return 0; +} + +uae_u8 REGPARAM2 *default_xlate (uaecptr a) +{ + write_log ("Your Amiga program just did something terribly stupid\n"); + uae_reset (1); + + set_special (SPCFLAG_RESTORE_SANITY); + /* rtarea_bank has an infinite loop in m68k space, which we use to avoid a + * crash. */ + return rtarea_bank.xlateaddr (0xF0FFC0); } /* Address banks */ addrbank dummy_bank = { - default_alget, default_awget, dummy_lget, dummy_wget, dummy_bget, dummy_lput, dummy_wput, dummy_bput, - default_xlate, dummy_check + default_xlate, dummy_check, NULL, NULL }; addrbank chipmem_bank = { - chipmem_alget, chipmem_awget, chipmem_lget, chipmem_wget, chipmem_bget, chipmem_lput, chipmem_wput, chipmem_bput, - chipmem_xlate, chipmem_check + chipmem_xlate, chipmem_check, NULL, "Chip memory" }; addrbank bogomem_bank = { - bogomem_alget, bogomem_awget, bogomem_lget, bogomem_wget, bogomem_bget, bogomem_lput, bogomem_wput, bogomem_bput, - bogomem_xlate, bogomem_check + bogomem_xlate, bogomem_check, NULL, "Slow memory" +}; + +addrbank a3000lmem_bank = { + a3000lmem_lget, a3000lmem_wget, a3000lmem_bget, + a3000lmem_lput, a3000lmem_wput, a3000lmem_bput, + a3000lmem_xlate, a3000lmem_check, NULL, "RAMSEY memory (low)" +}; + +addrbank a3000hmem_bank = { + a3000hmem_lget, a3000hmem_wget, a3000hmem_bget, + a3000hmem_lput, a3000hmem_wput, a3000hmem_bput, + a3000hmem_xlate, a3000hmem_check, NULL, "RAMSEY memory (high)" }; addrbank kickmem_bank = { - kickmem_alget, kickmem_awget, kickmem_lget, kickmem_wget, kickmem_bget, kickmem_lput, kickmem_wput, kickmem_bput, - kickmem_xlate, kickmem_check + kickmem_xlate, kickmem_check, NULL, "Kickstart ROM" }; +addrbank extendedkickmem_bank = { + extendedkickmem_lget, extendedkickmem_wget, extendedkickmem_bget, + extendedkickmem_lput, extendedkickmem_wput, extendedkickmem_bput, + extendedkickmem_xlate, extendedkickmem_check, NULL, "Extended Kickstart ROM" +}; + +static int kickstart_checksum (uae_u8 *mem, int size) +{ + uae_u32 cksum = 0, prevck = 0; + int i; + for (i = 0; i < size; i += 4) { + uae_u32 data = mem[i] * 65536 * 256 + mem[i + 1] * 65536 + mem[i + 2] * 256 + mem[i + 3]; + cksum += data; + if (cksum < prevck) + cksum++; + prevck = cksum; + } + if (cksum != 0xFFFFFFFFul) { + write_log ("Kickstart checksum incorrect. You probably have a corrupted ROM image.\n"); + } + return 0; +} + +static const char kickstring[] = "exec.library"; + +static int read_kickstart (struct zfile *f, uae_u8 *mem, int size, int dochecksum, int *cloanto_rom) +{ + unsigned char buffer[20]; + int i, j, cr = 0; + + if (cloanto_rom) + *cloanto_rom = 0; + i = zfile_fread (buffer, 1, 11, f); + if (strncmp ((char *) buffer, "AMIROMTYPE1", 11) != 0) { + zfile_fseek (f, 0, SEEK_SET); + } else { + cr = 1; + } + + if (cloanto_rom) + *cloanto_rom = cr; + + i = zfile_fread (mem, 1, size, f); + + if (i != 8192 && i != 65536 && i != 131072 && i != 262144 && i != 524288 && i != 524288 * 2 && i != 524288 * 4) { + gui_message ("Error while reading Kickstart ROM file."); + return 0; + } + if (i == size / 2) + memcpy (mem + size / 2, mem, size / 2); + + if (cr) { + if (!decode_cloanto_rom (mem, size, i, 0)) + return 0; + } + if (currprefs.cs_a1000ram) { + int off = 0; + a1000_bootrom = xcalloc (262144, 1); + while (off + i < 262144) { + memcpy (a1000_bootrom + off, kickmemory, i); + off += i; + } + memset (kickmemory, 0, kickmem_size); + a1000_handle_kickstart (1); + dochecksum = 0; + i = 524288; + } + + zfile_fclose (f); + + for (j = 0; j < 256 && i >= 262144; j++) { + if (!memcmp (mem + j, kickstring, strlen (kickstring) + 1)) + break; + } + + if (j == 256 || i < 262144) + dochecksum = 0; + if (dochecksum) + kickstart_checksum (mem, size); + + return 1; +} + +static int load_extendedkickstart (void) +{ + struct zfile *f; + int size; + + if (strlen (currprefs.romextfile) == 0) + return 0; + f = zfile_open (currprefs.romextfile, "rb"); + if (!f) { + write_log ("No extended Kickstart ROM found"); + return 0; + } + + zfile_fseek (f, 0, SEEK_END); + size = zfile_ftell (f); + if (size > 300000) + extendedkickmem_size = 524288; + else + extendedkickmem_size = 262144; + zfile_fseek (f, 0, SEEK_SET); + + switch (extromtype ()) { + case EXTENDED_ROM_CDTV: + extendedkickmemory = (uae_u8 *) mapped_malloc (extendedkickmem_size, "rom_f0"); + extendedkickmem_bank.baseaddr = (uae_u8 *) extendedkickmemory; + break; + case EXTENDED_ROM_CD32: + extendedkickmemory = (uae_u8 *) mapped_malloc (extendedkickmem_size, "rom_e0"); + extendedkickmem_bank.baseaddr = (uae_u8 *) extendedkickmemory; + break; + } + read_kickstart (f, extendedkickmemory, 524288, 0, 0); + return 1; +} + + +static void kickstart_fix_checksum (uae_u8 *mem, int size) +{ + uae_u32 cksum = 0, prevck = 0; + int i, ch = size == 524288 ? 0x7ffe8 : 0x3e; + + mem[ch] = 0; + mem[ch + 1] = 0; + mem[ch + 2] = 0; + mem[ch + 3] = 0; + for (i = 0; i < size; i+=4) { + uae_u32 data = (mem[i] << 24) | (mem[i + 1] << 16) | (mem[i + 2] << 8) | mem[i + 3]; + cksum += data; + if (cksum < prevck) + cksum++; + prevck = cksum; + } + cksum ^= 0xffffffff; + mem[ch++] = cksum >> 24; + mem[ch++] = cksum >> 16; + mem[ch++] = cksum >> 8; + mem[ch++] = cksum >> 0; +} + +static int patch_shapeshifter (uae_u8 *kickmemory) +{ + /* Patch Kickstart ROM for ShapeShifter - from Christian Bauer. + * Changes 'lea $400,a0' and 'lea $1000,a0' to 'lea $3000,a0' for + * ShapeShifter compatability. + */ + int i, patched = 0; + uae_u8 kickshift1[] = { 0x41, 0xf8, 0x04, 0x00 }; + uae_u8 kickshift2[] = { 0x41, 0xf8, 0x10, 0x00 }; + uae_u8 kickshift3[] = { 0x43, 0xf8, 0x04, 0x00 }; + + for (i = 0x200; i < 0x300; i++) { + if (!memcmp (kickmemory + i, kickshift1, sizeof (kickshift1)) || + !memcmp (kickmemory + i, kickshift2, sizeof (kickshift2)) || + !memcmp (kickmemory + i, kickshift3, sizeof (kickshift3))) { + kickmemory[i + 2] = 0x30; + write_log ("Kickstart KickShifted @%04.4X\n", i); + patched++; + } + } + return patched; +} + +/* disable incompatible drivers */ +static int patch_residents (uae_u8 *kickmemory, int size) +{ + int i, j, patched = 0; + char *residents[] = { + "NCR scsi.device", + "scsi.device", "carddisk.device", "card.resource", + NULL + }; + uaecptr base = size == 524288 ? 0xf80000 : 0xfc0000; + + for (i = 0; i < size - 100; i++) { + if (kickmemory[i] == 0x4a && kickmemory[i + 1] == 0xfc) { + uaecptr addr; + addr = (kickmemory[i + 2] << 24) | (kickmemory[i + 3] << 16) | (kickmemory[i + 4] << 8) | (kickmemory[i + 5] << 0); + if (addr != i + base) + continue; + addr = (kickmemory[i + 14] << 24) | (kickmemory[i + 15] << 16) | (kickmemory[i + 16] << 8) | (kickmemory[i + 17] << 0); + if (addr >= base && addr < base + size) { + j = 0; + while (residents[j]) { + if (!memcmp (residents[j], kickmemory + addr - base, strlen (residents[j]) + 1)) { + write_log ("KSPatcher: '%s' at %08.8X disabled\n", residents[j], i + base); + kickmemory[i] = 0x4b; /* destroy RTC_MATCHWORD */ + patched++; + break; + } + j++; + } + } + } + } + return patched; +} + +static void patch_kick(void) +{ + int patched = 0; + if (kickmem_size >= 524288 && currprefs.kickshifter) + patched += patch_shapeshifter (kickmemory); + patched += patch_residents (kickmemory, kickmem_size); + if (extendedkickmemory) { + patched += patch_residents (extendedkickmemory, extendedkickmem_size); + if (patched) + kickstart_fix_checksum (extendedkickmemory, extendedkickmem_size); + } + if (patched) + kickstart_fix_checksum (kickmemory, kickmem_size); +} + +static int load_kickstart (void) +{ + struct zfile *f = NULL; + int i; + + if (currprefs.rom_crc32) { + for (i = 0;; i++) { + struct romlist *rl = romlist_from_idx (i, ROMTYPE_KICK, 1); + if (!rl) + break; + if (rl->rd->crc32 == currprefs.rom_crc32) { + f = zfile_open (rl->path, "rb"); + break; + } + } + } else + f = zfile_open (currprefs.romfile, "rb"); + + if (f == NULL) { +#if defined (AMIGA) +#define USE_UAE_ERSATZ "USE_UAE_ERSATZ" + if (!getenv (USE_UAE_ERSATZ)) { + write_log ("Using current ROM. (create ENV:%s to " "use uae's ROM replacement)\n", USE_UAE_ERSATZ); + memcpy (kickmemory, (char *) 0x1000000 - kickmem_size, kickmem_size); + kickstart_checksum (kickmemory, kickmem_size); + goto chk_sum; + } +#endif + return 0; + } + + if (!read_kickstart (f, kickmemory, kickmem_size, 1, &cloanto_rom)) + return 0; + +#if defined (AMIGA) + chk_sum: +#endif + kickstart_version = (kickmemory[12] << 8) | kickmemory[13]; + + return 1; +} + char *address_space, *good_address_map; int good_address_fd; -void memory_init(void) +#ifndef NATMEM_OFFSET + +uae_u8 *mapped_malloc (size_t s, char *file) { - char buffer[4096]; - char *nam; - int i, fd; - buserr = 0; + return calloc (s, 1); +} - chipmem_mask = chipmem_size - 1; - kickmem_mask = kickmem_size - 1; - bogomem_mask = bogomem_size - 1; - -#ifdef USE_COMPILER - fd = open("/dev/zero", O_RDWR); - good_address_map = mmap(NULL, 1 << 24, PROT_READ, MAP_PRIVATE, fd, 0); - address_space = mmap(NULL, 1 << 24, PROT_READ, MAP_PRIVATE, fd, 0); - chipmemory = mmap(address_space, 0x200000, PROT_READ|PROT_WRITE, MAP_PRIVATE | MAP_FIXED, fd, 0); - kickmemory = mmap(address_space + 0xF80000, 0x80000, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, fd, 0); - - close(fd); - - good_address_fd = open(nam = tmpnam(NULL), O_CREAT|O_RDWR, 0600); - memset(buffer,1,sizeof(buffer)); - write(good_address_fd, buffer,sizeof(buffer)); - unlink(nam); - - for (i = 0; i < chipmem_size; i += 4096) - mmap(good_address_map + i, 4096, PROT_READ, MAP_FIXED | MAP_PRIVATE, - good_address_fd, 0); - for (i = 0; i < kickmem_size; i += 4096) - mmap(good_address_map + i + 0x1000000 - kickmem_size, 4096, PROT_READ, - MAP_FIXED | MAP_PRIVATE, good_address_fd, 0); +void mapped_free (uae_u8 *p) +{ + free (p); +} #else - chipmemory = (UBYTE *)malloc(chipmem_size); - kickmemory = (UBYTE *)malloc(kickmem_size); + +#include +#include +#include +#include + +shmpiece *shm_start = NULL; +int canbang = 1; + +static void dumplist (void) +{ + shmpiece *x = shm_start; + printf ("Start Dump:\n"); + while (x) { + printf (" this=%p, Native %p, id %d, prev=%p, next=%p, size=0x%08x\n", + x, x->native_address, x->id, x->prev, x->next, x->size); + x = x->next; + } + printf ("End Dump:\n"); +} + +static shmpiece *find_shmpiece (uae_u8 *base) +{ + shmpiece *x = shm_start; + + while (x && x->native_address != base) + x = x->next; + if (!x) { + printf ("NATMEM: Failure to find mapping at %p\n", base); + dumplist (); + canbang = 0; + return 0; + } + return x; +} + +static void delete_shmmaps (uae_u32 start, uae_u32 size) +{ + if (!canbang) + return; + + while (size) { + uae_u8 *base = mem_banks[bankindex (start)]->baseaddr; + if (base) { + shmpiece *x; + base = ((uae_u8 *) NATMEM_OFFSET) + start; + + x = find_shmpiece (base); + if (!x) + return; + + if (x->size > size) { + printf ("NATMEM: Failure to delete mapping at %08x (size %08x, delsize %08x)\n", start, x->size, size); + dumplist (); + canbang = 0; + return; + } + shmdt (x->native_address); + size -= x->size; + start += x->size; + if (x->next) + x->next->prev = x->prev; /* remove this one from the list */ + if (x->prev) + x->prev->next = x->next; + else + shm_start = x->next; + free (x); + } else { + size -= 0x10000; + start += 0x10000; + } + } +} + +static void add_shmmaps (uae_u32 start, addrbank *what) +{ + shmpiece *x = shm_start; + shmpiece *y; + uae_u8 *base = what->baseaddr; + + if (!canbang) + return; + if (!base) + return; + + x = find_shmpiece (base); + if (!x) + return; + y = malloc (sizeof (shmpiece)); + *y = *x; + base = ((uae_u8 *) NATMEM_OFFSET) + start; + y->native_address = shmat (y->id, base, 0); + if (y->native_address == (void *) -1) { + printf ("NATMEM: Failure to map existing at %08x (%p)\n", start, base); + perror ("shmat"); + dumplist (); + canbang = 0; + return; + } + y->next = shm_start; + y->prev = NULL; + if (y->next) + y->next->prev = y; + shm_start = y; +} + +uae_u8 *mapped_malloc (size_t s, char *file) +{ + int id; + void *answer; + shmpiece *x; + + if (!canbang) + return malloc (s); + + id = shmget (IPC_PRIVATE, s, 0x1ff, file); + if (id == 1) { + canbang = 0; + return mapped_malloc (s, file); + } + answer = shmat (id, 0, 0); + shmctl (id, IPC_RMID, NULL); + if (answer != (void *) -1) { + x = malloc (sizeof (shmpiece)); + x->native_address = answer; + x->id = id; + x->size = s; + x->next = shm_start; + x->prev = NULL; + if (x->next) + x->next->prev = x; + shm_start = x; + + return answer; + } + canbang = 0; + return mapped_malloc (s, file); +} + +void mapped_free (uae_u8 *base) +{ + shmpiece *x = find_shmpiece (base); + if (!x) + abort (); + shmdt (x->native_address); +} + +#endif + +static void init_mem_banks (void) +{ + int i; + for (i = 0; i < 65536; i++) + put_mem_bank (i << 16, &dummy_bank, 0); +} + +static void allocate_memory (void) +{ + if (allocated_chipmem != currprefs.chipmem_size) { + int memsize; + if (chipmemory) + mapped_free (chipmemory); + chipmemory = 0; + + memsize = allocated_chipmem = currprefs.chipmem_size; + chipmem_mask = allocated_chipmem - 1; + + if (memsize < 0x100000) + memsize = 0x100000; + chipmemory = mapped_malloc (memsize, "chip"); + if (chipmemory == 0) { + write_log ("Fatal error: out of memory for chipmem.\n"); + allocated_chipmem = 0; + } else { + need_hardreset = 1; + if (memsize != allocated_chipmem) + memset (chipmemory + allocated_chipmem, 0xff, memsize - allocated_chipmem); + } + } + + chipmem_full_mask = allocated_chipmem - 1; + if ((currprefs.chipset_mask & CSMASK_ECS_AGNUS) && allocated_chipmem < 0x100000) + chipmem_full_mask = 0x100000 - 1; + + if (allocated_bogomem != currprefs.bogomem_size) { + if (bogomemory) + mapped_free (bogomemory); + bogomemory = 0; + + allocated_bogomem = currprefs.bogomem_size; + bogomem_mask = allocated_bogomem - 1; + + if (allocated_bogomem) { + bogomemory = mapped_malloc (allocated_bogomem, "bogo"); + if (bogomemory == 0) { + write_log ("Out of memory for bogomem.\n"); + allocated_bogomem = 0; + } + } + need_hardreset = 1; + } + + if (allocated_a3000lmem != currprefs.mbresmem_low_size) { + if (a3000lmemory) + mapped_free (a3000lmemory); + a3000lmemory = 0; + + allocated_a3000lmem = currprefs.mbresmem_low_size; + a3000lmem_mask = allocated_a3000lmem - 1; + a3000lmem_start = 0x08000000 - allocated_a3000lmem; + if (allocated_a3000lmem) { + a3000lmemory = mapped_malloc (allocated_a3000lmem, "ramsey_low"); + if (a3000lmemory == 0) { + write_log ("Out of memory for a3000lowmem.\n"); + allocated_a3000lmem = 0; + } + } + need_hardreset = 1; + } + + if (allocated_a3000hmem != currprefs.mbresmem_high_size) { + if (a3000hmemory) + mapped_free (a3000hmemory); + a3000hmemory = 0; + + allocated_a3000hmem = currprefs.mbresmem_high_size; + a3000hmem_mask = allocated_a3000hmem - 1; + a3000hmem_start = 0x08000000; + if (allocated_a3000hmem) { + a3000hmemory = mapped_malloc (allocated_a3000hmem, "ramsey_high"); + if (a3000hmemory == 0) { + write_log ("Out of memory for a3000highmem.\n"); + allocated_a3000hmem = 0; + } + } + need_hardreset = 1; + } + + if (savestate_state == STATE_RESTORE) { + restore_ram (chip_filepos, chipmemory); + if (allocated_bogomem > 0) { + restore_ram (bogo_filepos, bogomemory); + } + if (allocated_a3000lmem > 0) + restore_ram (a3000lmem_filepos, a3000lmemory); + if (allocated_a3000hmem > 0) + restore_ram (a3000hmem_filepos, a3000hmemory); + } + chipmem_bank.baseaddr = chipmemory; + bogomem_bank.baseaddr = bogomemory; + a3000lmem_bank.baseaddr = a3000lmemory; + a3000hmem_bank.baseaddr = a3000hmemory; +} + +void map_overlay (int chip) +{ + int i = allocated_chipmem > 0x200000 ? (allocated_chipmem >> 16) : 32; + addrbank *cb; + + cb = &chipmem_bank; + if (chip) + map_banks (cb, 0, i, allocated_chipmem); + else + map_banks (&kickmem_bank, 0, i, 0x80000); + if (savestate_state != STATE_RESTORE) + m68k_setpc (m68k_getpc ()); +} + +void memory_reset (void) +{ + int bnk, bnk_end; + +#ifdef NATMEM_OFFSET + delete_shmmaps (0, 0xFFFF0000); #endif + init_mem_banks (); + + currprefs.chipmem_size = changed_prefs.chipmem_size; + currprefs.bogomem_size = changed_prefs.bogomem_size; + currprefs.mbresmem_low_size = changed_prefs.mbresmem_low_size; + currprefs.mbresmem_high_size = changed_prefs.mbresmem_high_size; + currprefs.chipset_mask = changed_prefs.chipset_mask; + currprefs.cs_a1000ram = changed_prefs.cs_a1000ram; + currprefs.cs_fatgaryrev = changed_prefs.cs_fatgaryrev; + currprefs.cs_ramseyrev = changed_prefs.cs_ramseyrev; + currprefs.cs_ide = changed_prefs.cs_ide; + currprefs.bootrom = changed_prefs.bootrom; + + need_hardreset = 0; + /* Use changed_prefs, as m68k_reset is called later. */ + if (last_address_space_24 != changed_prefs.address_space_24) + need_hardreset = 1; + + last_address_space_24 = changed_prefs.address_space_24; + allocate_memory (); + + if (currprefs.rom_crc32 != changed_prefs.rom_crc32 + || strcmp (currprefs.romfile, changed_prefs.romfile) != 0 + || strcmp (currprefs.keyfile, changed_prefs.keyfile) != 0) + { + ersatzkickfile = 0; + a1000_handle_kickstart (0); + free (a1000_bootrom); + a1000_bootrom = 0; + a1000_kickstart_mode = 0; + + currprefs.rom_crc32 = changed_prefs.rom_crc32; + memcpy (currprefs.romfile, changed_prefs.romfile, sizeof currprefs.romfile); + memcpy (currprefs.keyfile, changed_prefs.keyfile, sizeof currprefs.keyfile); + need_hardreset = 1; + if (!load_kickstart ()) { + init_ersatz_rom (kickmemory); + ersatzkickfile = 1; + } + patch_kick (); + } + + map_banks (&custom_bank, 0xC0, 0xE0 - 0xC0, 0); + map_banks (&cia_bank, 0xA0, 32, 0); + if (!currprefs.cs_a1000ram) + /* D80000 - DDFFFF not mapped (A1000 = custom chips) */ + map_banks (&dummy_bank, 0xD8, 6, 0); + + /* map "nothing" to 0x200000 - 0x9FFFFF (0xBEFFFF if PCMCIA or AGA) */ + bnk = allocated_chipmem >> 16; + if (bnk < 0x20) + bnk = 0x20; + bnk_end = (currprefs.chipset_mask & CSMASK_AGA) ? 0xBF : 0xA0; + map_banks (&dummy_bank, bnk, bnk_end - bnk, 0); + if (currprefs.chipset_mask & CSMASK_AGA) + map_banks (&dummy_bank, 0xc0, 0xd8 - 0xc0, 0); + + if (bogomemory != 0) { + int t = allocated_bogomem >> 16; + if (t > 0x1C) + t = 0x1C; + if (t > 0x10 && ((currprefs.chipset_mask & CSMASK_AGA) || currprefs.cpu_model >= 68020)) + t = 0x10; + map_banks (&bogomem_bank, 0xC0, t, allocated_bogomem); + } + if (currprefs.cs_ide) { + if (currprefs.cs_ide == 1) { + map_banks (&gayle_bank, 0xD8, 6, 0); + map_banks (&gayle2_bank, 0xDD, 2, 0); + // map_banks (&gayle_attr_bank, 0xA0, 8, 0); only if PCMCIA card inserted */ + } + if (currprefs.cs_ide == 2) { + map_banks (&gayle_bank, 0xDD, 1, 0); + } + if (currprefs.cs_ide < 0) { + map_banks (&gayle_bank, 0xD8, 6, 0); + map_banks (&gayle_bank, 0xDD, 1, 0); + } + } + if (currprefs.cs_rtc) + map_banks (&clock_bank, 0xDC, 1, 0); + if (currprefs.cs_fatgaryrev >= 0 || currprefs.cs_ramseyrev >= 0) + map_banks (&mbres_bank, 0xDE, 1, 0); + + if (a3000lmemory != 0) + map_banks (&a3000lmem_bank, a3000lmem_start >> 16, allocated_a3000lmem >> 16, 0); + if (a3000hmemory != 0) + map_banks (&a3000hmem_bank, a3000hmem_start >> 16, allocated_a3000hmem >> 16, 0); + + if (currprefs.bootrom) { + uae_boot_rom = 1; + map_banks (&rtarea_bank, RTAREA_BASE >> 16, 1, 0); + } else + uae_boot_rom = 0; + + map_banks (&kickmem_bank, 0xF8, 8, 0); + + a1000_reset (); + map_banks (&expamem_bank, 0xE8, 1, 0); + + /* Map the chipmem into all of the lower 8MB */ + map_overlay (1); + + switch (extromtype ()) { + case EXTENDED_ROM_CDTV: + map_banks (&extendedkickmem_bank, 0xF0, 4, 0); + break; + case EXTENDED_ROM_CD32: + map_banks (&extendedkickmem_bank, 0xE0, 8, 0); + break; + default: + if (cloanto_rom) + map_banks (&kickmem_bank, 0xE0, 8, 0); + } + + if (need_hardreset) + memory_hardreset (); +} - for(i = 0; i < 65536; i++) - membanks[i] = dummy_bank; - - /* Map the chipmem into all of the lower 16MB */ - map_banks(&chipmem_bank, 0x00, 256); - map_banks(&custom_bank, 0xC0, 0x20); - map_banks(&cia_bank, 0xA0, 32); - map_banks(&clock_bank, 0xDC, 1); - - if (bogomem_size > 0) { - bogomemory = (UBYTE *)malloc(bogomem_size); - map_banks(&bogomem_bank, 0xC0, bogomem_size >> 16); - } - - map_banks(&rtarea_bank, 0xF0, 1); - if (!load_kickstart()) { - init_ersatz_rom(kickmemory); +void memory_init (void) +{ + allocated_chipmem = 0; + allocated_bogomem = 0; + kickmemory = 0; + extendedkickmemory = 0; + chipmemory = 0; + allocated_a3000lmem = allocated_a3000hmem = 0; + a3000lmemory = a3000hmemory = 0; + bogomemory = 0; + + kickmemory = mapped_malloc (kickmem_size, "kick"); + kickmem_bank.baseaddr = kickmemory; + + load_extendedkickstart (); + if (!load_kickstart ()) { + init_ersatz_rom (kickmemory); ersatzkickfile = 1; } - if (zkickfile) - map_banks(&kickmem_bank, 0x20, 8); - - map_banks(&kickmem_bank, 0xF8, 8); - if (!zkickfile) - map_banks(&expamem_bank, 0xE8, 1); + + init_mem_banks (); + memory_reset (); + + kickmem_mask = kickmem_size - 1; + extendedkickmem_mask = extendedkickmem_size - 1; +} + +void memory_cleanup (void) +{ + if (a3000lmemory) + mapped_free (a3000lmemory); + if (a3000hmemory) + mapped_free (a3000hmemory); + if (bogomemory) + mapped_free (bogomemory); + if (kickmemory) + mapped_free (kickmemory); + if (a1000_bootrom) + free (a1000_bootrom); + if (chipmemory) + mapped_free (chipmemory); + + a3000lmemory = a3000hmemory = 0; + bogomemory = 0; + kickmemory = 0; + a1000_bootrom = 0; + chipmemory = 0; +} + +void memory_hardreset (void) +{ + if (savestate_state == STATE_RESTORE) + return; + if (chipmemory) + memset (chipmemory, 0, allocated_chipmem); + if (bogomemory) + memset (bogomemory, 0, allocated_bogomem); + if (a3000lmemory) + memset (a3000lmemory, 0, allocated_a3000lmem); + if (a3000hmemory) + memset (a3000hmemory, 0, allocated_a3000hmem); + expansion_clear (); } -void map_banks(addrbank *bank, int start, int size) +void map_banks (addrbank *bank, int start, int size, int realsize) { int bnr; - int hioffs = 0; -#if 0 && CPU_LEVEL < 2 - for (hioffs = 0; hioffs < 256; hioffs++) + unsigned long int hioffs = 0, endhioffs = 0x100; + addrbank *orgbank = bank; + uae_u32 realstart = start; + + flush_icache (1); /* Sure don't want to keep any old mappings around! */ +#ifdef NATMEM_OFFSET + delete_shmmaps (start << 16, size << 16); #endif - for (bnr = start; bnr < start+size; bnr++) - membanks[bnr + hioffs * 256] = *bank; + + if (!realsize) + realsize = size << 16; + + if ((size << 16) < realsize) { + write_log ("Please report to bmeyer@cs.monash.edu.au, and mention:\n"); + write_log ("Broken mapping, size=%x, realsize=%x\n", size, realsize); + write_log ("Start is %x\n", start); + write_log ("Reducing memory sizes, especially chipmem, may fix this problem\n"); + abort (); + } + + if (start >= 0x100) { + int real_left = 0; + for (bnr = start; bnr < start + size; bnr++) { + if (!real_left) { + realstart = bnr; + real_left = realsize >> 16; +#ifdef NATMEM_OFFSET + add_shmmaps (realstart << 16, bank); +#endif + } + put_mem_bank (bnr << 16, bank, realstart << 16); + real_left--; + } + return; + } + /* Already in currprefs, since we get called after m68k_reset. */ + if (last_address_space_24) + endhioffs = 0x10000; + for (hioffs = 0; hioffs < endhioffs; hioffs += 0x100) { + int real_left = 0; + for (bnr = start; bnr < start + size; bnr++) { + if (!real_left) { + realstart = bnr + hioffs; + real_left = realsize >> 16; +#ifdef NATMEM_OFFSET + add_shmmaps (realstart << 16, bank); +#endif + } + put_mem_bank ((bnr + hioffs) << 16, bank, realstart << 16); + real_left--; + } + } +} + + +/* memory save/restore code */ + +uae_u8 *save_cram (int *len) +{ + *len = allocated_chipmem; + return chipmemory; +} + +uae_u8 *save_bram (int *len) +{ + *len = allocated_bogomem; + return bogomemory; +} + +uae_u8 *save_a3000lram (int *len) +{ + *len = allocated_a3000lmem; + return a3000lmemory; +} + +uae_u8 *save_a3000hram (int *len) +{ + *len = allocated_a3000hmem; + return a3000hmemory; +} + +void restore_cram (int len, long filepos) +{ + chip_filepos = filepos; + changed_prefs.chipmem_size = len; +} + +void restore_bram (int len, long filepos) +{ + bogo_filepos = filepos; + changed_prefs.bogomem_size = len; +} + +void restore_a3000lram (int len, size_t filepos) +{ + a3000lmem_filepos = filepos; + changed_prefs.mbresmem_low_size = len; +} + +void restore_a3000hram (int len, size_t filepos) +{ + a3000hmem_filepos = filepos; + changed_prefs.mbresmem_high_size = len; +} + +const uae_u8 *restore_rom (const uae_u8 *src) +{ + struct romdata *rom; + uae_u32 crc32; + char *romname; + int i; + + restore_u32 (); + restore_u32 (); + restore_u32 (); + restore_u32 (); + crc32 = restore_u32 (); + + rom = getromdatabycrc (crc32); + if (rom) + changed_prefs.rom_crc32 = crc32; + + return src; +} + +uae_u8 *save_rom (int first, int *len, uae_u8 *dstptr) +{ + static int count; + uae_u8 *dst, *dstbak; + uae_u8 *mem_real_start; + int mem_start, mem_size, mem_type, i, saverom; + + saverom = 0; + if (first) + count = 0; + for (;;) { + mem_type = count; + switch (count) { + case 0: /* Kickstart ROM */ + mem_start = 0xf80000; + mem_real_start = kickmemory; + mem_size = kickmem_size; + /* 256KB or 512KB ROM? */ + for (i = 0; i < mem_size / 2 - 4; i++) { + if (longget (i + mem_start) != longget (i + mem_start + mem_size / 2)) + break; + } + if (i == mem_size / 2 - 4) { + mem_size /= 2; + mem_start += 262144; + } + mem_type = 0; + break; + default: + return 0; + } + count++; + if (mem_size) + break; + } + if (dstptr) + dstbak = dst = dstptr; + else + dstbak = dst = malloc (4 + 4 + 4 + 4 + 4 + mem_size); + save_u32 (mem_start); + save_u32 (mem_size); + save_u32 (mem_type); + save_u32 (longget (mem_start + 12)); /* version+revision */ + save_u32 (get_crc32 (kickmemory, mem_size)); + sprintf (dst, "Kickstart %d.%d", wordget (mem_start + 12), wordget (mem_start + 14)); + dst += strlen (dst) + 1; + if (saverom) { + for (i = 0; i < mem_size; i++) + *dst++ = byteget (mem_start + i); + } + *len = dst - dstbak; + return dstbak; +} + +/* memory helpers */ + +static int addr_valid (char *txt, uaecptr addr, uae_u32 len) +{ + addrbank *ab = &get_mem_bank (addr); + if (ab == 0 || addr < 0x100 + || len < 0 || len > 16777215 || !valid_address (addr, len)) { + write_log ("corrupt %s pointer %x (%d) detected!\n", txt, addr, len); + return 0; + } + return 1; +} + +void memcpyha_safe (uaecptr dst, const uae_u8 *src, int size) +{ + if (!addr_valid ("memcpyha", dst, size)) + return; + while (size--) + put_byte (dst++, *src++); +} + +void memcpyha (uaecptr dst, const uae_u8 *src, int size) +{ + while (size--) + put_byte (dst++, *src++); +} + +void memcpyah_safe (uae_u8 *dst, uaecptr src, int size) +{ + if (!addr_valid ("memcpyah", src, size)) + return; + while (size--) + *dst++ = get_byte (src++); +} + +void memcpyah (uae_u8 *dst, uaecptr src, int size) +{ + while (size--) + *dst++ = get_byte (src++); +} + +char *strcpyah_safe (char *dst, uaecptr src) +{ + char *res = dst; + uae_u8 b; + do { + if (!addr_valid ("strcpyah", src, 1)) + return res; + b = get_byte (src++); + *dst++ = b; + } while (b); + return res; +} + +uaecptr strcpyha_safe (uaecptr dst, const char *src) +{ + uaecptr res = dst; + uae_u8 b; + do { + if (!addr_valid ("strcpyha", dst, 1)) + return res; + b = *src++; + put_byte (dst++, b); + } while (b); + return res; +} + +uae_u32 strncpyha (uae_u32 dst, const char *src, int size) +{ + uae_u32 res = dst; + while (size--) { + put_byte (dst++, *src); + if (!*src++) + return res; + } + return res; +} + +uae_u32 strncpyha_safe (uae_u32 dst, const char *src, int size) +{ + uae_u32 res = dst; + while (size--) { + if (!addr_valid ("strcpyha", dst, 1)) + return res; + put_byte (dst++, *src); + if (!*src++) + return res; + } + return res; }