--- uae/src/memory.c 2018/04/24 16:53:03 1.1.1.7 +++ uae/src/memory.c 2018/04/24 17:22:01 1.1.1.18 @@ -9,12 +9,19 @@ #include "sysconfig.h" #include "sysdeps.h" -#include "config.h" #include "options.h" #include "uae.h" #include "memory.h" +#include "romlist.h" #include "ersatz.h" #include "zfile.h" +#include "custom.h" +#include "events.h" +#include "newcpu.h" +#include "autoconf.h" +#include "savestate.h" +#include "crc32.h" +#include "gui.h" #ifdef USE_MAPPED_MEMORY #include @@ -27,13 +34,28 @@ uae_u32 allocated_fastmem; uae_u32 allocated_bogomem; uae_u32 allocated_gfxmem; uae_u32 allocated_z3fastmem; -uae_u32 allocated_a3000mem; +uae_u32 allocated_a3000lmem; +uae_u32 allocated_a3000hmem; + +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; -#ifdef SAVE_MEMORY_BANKS addrbank *mem_banks[65536]; -#else -addrbank mem_banks[65536]; -#endif + +/* 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) @@ -62,8 +84,11 @@ __inline__ void byteput (uaecptr addr, u } #endif -uae_u32 chipmem_mask, kickmem_mask, bogomem_mask, a3000mem_mask; +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 uae_u32 dummy_lget (uaecptr) REGPARAM; @@ -76,110 +101,78 @@ static int dummy_check (uaecptr addr, ua uae_u32 REGPARAM2 dummy_lget (uaecptr addr) { - if (currprefs.illegal_mem) - write_log ("Illegal lget at %08lx\n", addr); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal lget at %08lx\n", addr); + } + } - return 0; + return 0xFFFFFFFF; } uae_u32 REGPARAM2 dummy_wget (uaecptr addr) { - if (currprefs.illegal_mem) - write_log ("Illegal wget at %08lx\n", addr); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal wget at %08lx\n", addr); + } + } - return 0; + return 0xFFFF; } uae_u32 REGPARAM2 dummy_bget (uaecptr addr) { - if (currprefs.illegal_mem) - write_log ("Illegal bget at %08lx\n", addr); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal bget at %08lx\n", addr); + } + } - return 0; + return 0xFF; } void REGPARAM2 dummy_lput (uaecptr addr, uae_u32 l) { - if (currprefs.illegal_mem) - write_log ("Illegal lput at %08lx\n", addr); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal lput at %08lx\n", addr); + } + } } + void REGPARAM2 dummy_wput (uaecptr addr, uae_u32 w) { - if (currprefs.illegal_mem) - write_log ("Illegal wput at %08lx\n", addr); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal wput at %08lx\n", addr); + } + } } + void REGPARAM2 dummy_bput (uaecptr addr, uae_u32 b) { - if (currprefs.illegal_mem) - write_log ("Illegal bput at %08lx\n", addr); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal bput at %08lx\n", addr); + } + } } int REGPARAM2 dummy_check (uaecptr addr, uae_u32 size) { - if (currprefs.illegal_mem) - write_log ("Illegal check at %08lx\n", addr); - - return 0; -} - -/* A3000 "motherboard resources" bank. */ -static uae_u32 mbres_lget (uaecptr) REGPARAM; -static uae_u32 mbres_wget (uaecptr) REGPARAM; -static uae_u32 mbres_bget (uaecptr) REGPARAM; -static void mbres_lput (uaecptr, uae_u32) REGPARAM; -static void mbres_wput (uaecptr, uae_u32) REGPARAM; -static void mbres_bput (uaecptr, uae_u32) REGPARAM; -static int mbres_check (uaecptr addr, uae_u32 size) REGPARAM; - -static int mbres_val = 0; - -uae_u32 REGPARAM2 mbres_lget (uaecptr addr) -{ - if (currprefs.illegal_mem) - write_log ("Illegal lget at %08lx\n", addr); - - return 0; -} - -uae_u32 REGPARAM2 mbres_wget (uaecptr addr) -{ - if (currprefs.illegal_mem) - write_log ("Illegal wget at %08lx\n", addr); - - return 0; -} - -uae_u32 REGPARAM2 mbres_bget (uaecptr addr) -{ - if (currprefs.illegal_mem) - write_log ("Illegal bget at %08lx\n", addr); - - return (addr & 0xFFFF) == 3 ? mbres_val : 0; -} - -void REGPARAM2 mbres_lput (uaecptr addr, uae_u32 l) -{ - if (currprefs.illegal_mem) - write_log ("Illegal lput at %08lx\n", addr); -} -void REGPARAM2 mbres_wput (uaecptr addr, uae_u32 w) -{ - if (currprefs.illegal_mem) - write_log ("Illegal wput at %08lx\n", addr); -} -void REGPARAM2 mbres_bput (uaecptr addr, uae_u32 b) -{ - if (currprefs.illegal_mem) - write_log ("Illegal bput at %08lx\n", addr); - - if ((addr & 0xFFFF) == 3) - mbres_val = b; -} - -int REGPARAM2 mbres_check (uaecptr addr, uae_u32 size) -{ - if (currprefs.illegal_mem) - write_log ("Illegal check at %08lx\n", addr); + if (currprefs.illegal_mem) { + if (illegal_count < 20) { + illegal_count++; + write_log ("Illegal check at %08lx\n", addr); + } + } return 0; } @@ -194,6 +187,7 @@ static uae_u8 *chipmem_xlate (uaecptr ad uae_u32 REGPARAM2 chipmem_lget (uaecptr addr) { uae_u32 *m; + addr -= chipmem_start & chipmem_mask; addr &= chipmem_mask; m = (uae_u32 *)(chipmemory + addr); @@ -203,6 +197,7 @@ uae_u32 REGPARAM2 chipmem_lget (uaecptr uae_u32 REGPARAM2 chipmem_wget (uaecptr addr) { uae_u16 *m; + addr -= chipmem_start & chipmem_mask; addr &= chipmem_mask; m = (uae_u16 *)(chipmemory + addr); @@ -219,6 +214,7 @@ uae_u32 REGPARAM2 chipmem_bget (uaecptr void REGPARAM2 chipmem_lput (uaecptr addr, uae_u32 l) { uae_u32 *m; + addr -= chipmem_start & chipmem_mask; addr &= chipmem_mask; m = (uae_u32 *)(chipmemory + addr); @@ -228,6 +224,7 @@ void REGPARAM2 chipmem_lput (uaecptr add void REGPARAM2 chipmem_wput (uaecptr addr, uae_u32 w) { uae_u16 *m; + addr -= chipmem_start & chipmem_mask; addr &= chipmem_mask; m = (uae_u16 *)(chipmemory + addr); @@ -241,6 +238,26 @@ void REGPARAM2 chipmem_bput (uaecptr add chipmemory[addr] = b; } +uae_u32 REGPARAM2 chipmem_agnus_wget (uaecptr addr) +{ + uae_u16 *m; + + addr &= chipmem_full_mask; + m = (uae_u16 *)(chipmemory + addr); + return do_get_mem_word (m); +} + +void REGPARAM2 chipmem_agnus_wput (uaecptr addr, uae_u32 w) +{ + uae_u16 *m; + + addr &= chipmem_full_mask; + if (addr >= allocated_chipmem) + return; + m = (uae_u16 *)(chipmemory + addr); + do_put_mem_word (m, w); +} + int REGPARAM2 chipmem_check (uaecptr addr, uae_u32 size) { addr -= chipmem_start & chipmem_mask; @@ -332,94 +349,180 @@ uae_u8 REGPARAM2 *bogomem_xlate (uaecptr return bogomemory + addr; } -/* A3000 motherboard fast memory */ +/* 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) +{ + uae_u32 *m; + addr &= a3000lmem_mask; + m = (uae_u32 *)(a3000lmemory + addr); + return do_get_mem_long (m); +} + +static uae_u32 REGPARAM2 a3000lmem_wget (uaecptr 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 uae_u8 *a3000memory; +static void REGPARAM2 a3000lmem_bput (uaecptr addr, uae_u32 b) +{ + addr &= a3000lmem_mask; + a3000lmemory[addr] = b; +} -static uae_u32 a3000mem_lget (uaecptr) REGPARAM; -static uae_u32 a3000mem_wget (uaecptr) REGPARAM; -static uae_u32 a3000mem_bget (uaecptr) REGPARAM; -static void a3000mem_lput (uaecptr, uae_u32) REGPARAM; -static void a3000mem_wput (uaecptr, uae_u32) REGPARAM; -static void a3000mem_bput (uaecptr, uae_u32) REGPARAM; -static int a3000mem_check (uaecptr addr, uae_u32 size) REGPARAM; -static uae_u8 *a3000mem_xlate (uaecptr addr) REGPARAM; +static int REGPARAM2 a3000lmem_check (uaecptr addr, uae_u32 size) +{ + addr &= a3000lmem_mask; + return (addr + size) <= allocated_a3000lmem; +} -uae_u32 REGPARAM2 a3000mem_lget (uaecptr addr) +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 -= a3000mem_start & a3000mem_mask; - addr &= a3000mem_mask; - m = (uae_u32 *)(a3000memory + addr); + addr &= a3000hmem_mask; + m = (uae_u32 *)(a3000hmemory + addr); return do_get_mem_long (m); } -uae_u32 REGPARAM2 a3000mem_wget (uaecptr addr) +static uae_u32 REGPARAM2 a3000hmem_wget (uaecptr addr) { uae_u16 *m; - addr -= a3000mem_start & a3000mem_mask; - addr &= a3000mem_mask; - m = (uae_u16 *)(a3000memory + addr); + addr &= a3000hmem_mask; + m = (uae_u16 *)(a3000hmemory + addr); return do_get_mem_word (m); } -uae_u32 REGPARAM2 a3000mem_bget (uaecptr addr) +static uae_u32 REGPARAM2 a3000hmem_bget (uaecptr addr) { - addr -= a3000mem_start & a3000mem_mask; - addr &= a3000mem_mask; - return a3000memory[addr]; + addr &= a3000hmem_mask; + return a3000hmemory[addr]; } -void REGPARAM2 a3000mem_lput (uaecptr addr, uae_u32 l) +static void REGPARAM2 a3000hmem_lput (uaecptr addr, uae_u32 l) { uae_u32 *m; - addr -= a3000mem_start & a3000mem_mask; - addr &= a3000mem_mask; - m = (uae_u32 *)(a3000memory + addr); + addr &= a3000hmem_mask; + m = (uae_u32 *)(a3000hmemory + addr); do_put_mem_long (m, l); } -void REGPARAM2 a3000mem_wput (uaecptr addr, uae_u32 w) +static void REGPARAM2 a3000hmem_wput (uaecptr addr, uae_u32 w) { uae_u16 *m; - addr -= a3000mem_start & a3000mem_mask; - addr &= a3000mem_mask; - m = (uae_u16 *)(a3000memory + addr); + addr &= a3000hmem_mask; + m = (uae_u16 *)(a3000hmemory + addr); do_put_mem_word (m, w); } -void REGPARAM2 a3000mem_bput (uaecptr addr, uae_u32 b) +static void REGPARAM2 a3000hmem_bput (uaecptr addr, uae_u32 b) { - addr -= a3000mem_start & a3000mem_mask; - addr &= a3000mem_mask; - a3000memory[addr] = b; + addr &= a3000hmem_mask; + a3000hmemory[addr] = b; } -int REGPARAM2 a3000mem_check (uaecptr addr, uae_u32 size) +static int REGPARAM2 a3000hmem_check (uaecptr addr, uae_u32 size) { - addr -= a3000mem_start & a3000mem_mask; - addr &= a3000mem_mask; - return (addr + size) <= allocated_a3000mem; + addr &= a3000hmem_mask; + return (addr + size) <= allocated_a3000hmem; } -uae_u8 REGPARAM2 *a3000mem_xlate(uaecptr addr) +static uae_u8 *REGPARAM2 a3000hmem_xlate (uaecptr addr) { - addr -= a3000mem_start & a3000mem_mask; - addr &= a3000mem_mask; - return a3000memory + addr; + addr &= a3000hmem_mask; + return a3000hmemory + addr; } /* Kick memory */ 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 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 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; uae_u32 REGPARAM2 kickmem_lget (uaecptr addr) @@ -449,19 +552,47 @@ uae_u32 REGPARAM2 kickmem_bget (uaecptr void REGPARAM2 kickmem_lput (uaecptr addr, uae_u32 b) { - if (currprefs.illegal_mem) + 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) { - if (currprefs.illegal_mem) + 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 (currprefs.illegal_mem) + 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); } @@ -479,6 +610,92 @@ uae_u8 REGPARAM2 *kickmem_xlate (uaecptr return kickmemory + addr; } +/* CD32/CDTV extended kick memory */ + +uae_u8 *extendedkickmemory; +static uae_u32 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) +{ + uae_u32 *m; + addr -= extendedkickmem_start & extendedkickmem_mask; + addr &= extendedkickmem_mask; + m = (uae_u32 *)(extendedkickmemory + addr); + return do_get_mem_long (m); +} + +static uae_u32 REGPARAM2 extendedkickmem_wget (uaecptr addr) +{ + uae_u16 *m; + addr -= extendedkickmem_start & extendedkickmem_mask; + addr &= extendedkickmem_mask; + m = (uae_u16 *)(extendedkickmemory + addr); + return do_get_mem_word (m); +} + +static uae_u32 REGPARAM2 extendedkickmem_bget (uaecptr addr) +{ + addr -= extendedkickmem_start & extendedkickmem_mask; + addr &= extendedkickmem_mask; + return extendedkickmemory[addr]; +} + +static void REGPARAM2 extendedkickmem_lput (uaecptr addr, uae_u32 b) +{ + if (currprefs.illegal_mem) + write_log ("Illegal extendedkickmem lput at %08lx\n", addr); +} + +static void REGPARAM2 extendedkickmem_wput (uaecptr addr, uae_u32 b) +{ + if (currprefs.illegal_mem) + write_log ("Illegal extendedkickmem wput at %08lx\n", addr); +} + +static void REGPARAM2 extendedkickmem_bput (uaecptr addr, uae_u32 b) +{ + 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) @@ -489,264 +706,1053 @@ int REGPARAM2 default_check (uaecptr a, uae_u8 REGPARAM2 *default_xlate (uaecptr a) { write_log ("Your Amiga program just did something terribly stupid\n"); - uae_reset(); - return kickmem_xlate (get_long (0xF80000)); /* So we don't crash. */ + 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); } -static int load_kickstart (void) +/* Address banks */ + +addrbank dummy_bank = { + dummy_lget, dummy_wget, dummy_bget, + dummy_lput, dummy_wput, dummy_bput, + default_xlate, dummy_check, NULL, NULL +}; + +addrbank chipmem_bank = { + chipmem_lget, chipmem_wget, chipmem_bget, + chipmem_lput, chipmem_wput, chipmem_bput, + chipmem_xlate, chipmem_check, NULL, "Chip memory" +}; + +addrbank bogomem_bank = { + bogomem_lget, bogomem_wget, bogomem_bget, + bogomem_lput, bogomem_wput, bogomem_bput, + 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_lget, kickmem_wget, kickmem_bget, + kickmem_lput, kickmem_wput, kickmem_bput, + 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) { - int i; uae_u32 cksum = 0, prevck = 0; - unsigned char buffer[20]; + 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; +} - FILE *f = zfile_open (currprefs.romfile, "rb"); +static const char kickstring[] = "exec.library"; - if (f == NULL) { - write_log ("No Kickstart ROM found.\n"); -#if defined AMIGA || defined __POS__ -#define USE_UAE_ERSATZ "USE_UAE_ERSATZ" - if (!getenv (USE_UAE_ERSATZ)) { - fprintf (stderr, "Using current ROM. (create ENV:%s to " - "use uae's ROM replacement)\n", USE_UAE_ERSATZ); - memcpy (kickmemory, (char*)0x1000000 - kickmem_size, kickmem_size); - goto chk_sum; - } -#endif - return 0; +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; } - i = fread (buffer, 1, 11, f); - if (strncmp ((char *)buffer, "AMIROMTYPE1", 11) != 0) - fseek (f, 0, SEEK_SET); - - i = fread (kickmemory, 1, kickmem_size, f); - if (i == kickmem_size/2) { - memcpy (kickmemory + kickmem_size/2, kickmemory, kickmem_size/2); - } else if (i != kickmem_size) { - write_log ("Error while reading Kickstart.\n"); + 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; } - zfile_close (f); + if (i == size / 2) + memcpy (mem + size / 2, mem, size / 2); - cloanto_rom = 0; - if (strncmp ((char *)buffer, "AMIROMTYPE1", 11) == 0) { - FILE *keyf; - uae_u8 *p; - long size, cnt, t; - - cloanto_rom = 1; - write_log ("ROM image is an encrypted \"Amiga Forever\" ROM file.\n"); - if (strlen (currprefs.keyfile) == 0) { - write_log ("No filename given for ROM key file.\n"); - return 0; - } - keyf = zfile_open (currprefs.keyfile, "rb"); - if (keyf == 0) { - write_log ("Could not find ROM key file.\n"); + 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; } - p = (uae_u8 *)xmalloc (524288); - size = fread (p, 1, 524288, keyf); + memset (kickmemory, 0, kickmem_size); + a1000_handle_kickstart (1); + dochecksum = 0; + i = 524288; + } - for (t = cnt = 0; cnt < kickmem_size; cnt++, t = (t + 1) % size) { - kickmemory[cnt] ^= p[t]; - if (i == cnt+1) - t = size-1; - } - fclose (keyf); - free (p); + zfile_fclose (f); + + for (j = 0; j < 256 && i >= 262144; j++) { + if (!memcmp (mem + j, kickstring, strlen (kickstring) + 1)) + break; } -#if defined(AMIGA) - chk_sum: -#endif - for (i = 0; i < kickmem_size; i+=4) { - uae_u32 data = kickmemory[i]*65536*256 + kickmemory[i+1]*65536 + kickmemory[i+2]*256 + kickmemory[i+3]; + 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; } - if (cksum != 0xFFFFFFFFul) { - write_log ("Kickstart checksum incorrect. You probably have a corrupted ROM image.\n"); + 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 1; + return patched; } -/* Address banks */ +/* 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; +} -addrbank dummy_bank = { - dummy_lget, dummy_wget, dummy_bget, - dummy_lput, dummy_wput, dummy_bput, - default_xlate, dummy_check -}; +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); +} -addrbank mbres_bank = { - mbres_lget, mbres_wget, mbres_bget, - mbres_lput, mbres_wput, mbres_bput, - default_xlate, mbres_check -}; +static int load_kickstart (void) +{ + struct zfile *f = NULL; + int i; -addrbank chipmem_bank = { - chipmem_lget, chipmem_wget, chipmem_bget, - chipmem_lput, chipmem_wput, chipmem_bput, - chipmem_xlate, chipmem_check -}; + 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"); -addrbank bogomem_bank = { - bogomem_lget, bogomem_wget, bogomem_bget, - bogomem_lput, bogomem_wput, bogomem_bput, - bogomem_xlate, bogomem_check -}; + 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; + } -addrbank a3000mem_bank = { - a3000mem_lget, a3000mem_wget, a3000mem_bget, - a3000mem_lput, a3000mem_wput, a3000mem_bput, - a3000mem_xlate, a3000mem_check -}; + if (!read_kickstart (f, kickmemory, kickmem_size, 1, &cloanto_rom)) + return 0; -addrbank kickmem_bank = { - kickmem_lget, kickmem_wget, kickmem_bget, - kickmem_lput, kickmem_wput, kickmem_bput, - kickmem_xlate, kickmem_check -}; +#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; +#ifndef NATMEM_OFFSET + +uae_u8 *mapped_malloc (size_t s, char *file) +{ + return calloc (s, 1); +} + +void mapped_free (uae_u8 *p) +{ + free (p); +} +#else + +#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); + put_mem_bank (i << 16, &dummy_bank, 0); } -#define MAKE_USER_PROGRAMS_BEHAVE 1 -void memory_init (void) +static void allocate_memory (void) { - char buffer[4096]; - char *nam; - int i, fd; - int custom_start; - - allocated_chipmem = currprefs.chipmem_size; - allocated_bogomem = currprefs.bogomem_size; - allocated_a3000mem = currprefs.a3000mem_size; + if (allocated_chipmem != currprefs.chipmem_size) { + uae_u32 memsize; + if (chipmemory) + mapped_free (chipmemory); + chipmemory = 0; -#ifdef USE_MAPPED_MEMORY - fd = open ("/dev/zero", O_RDWR); - good_address_map = mmap (NULL, 1 << 24, PROT_READ, MAP_PRIVATE, fd, 0); - /* Don't believe USER_PROGRAMS_BEHAVE. Otherwise, we'd segfault as soon - * as a decrunch routine tries to do color register hacks. */ - address_space = mmap (NULL, 1 << 24, PROT_READ | (USER_PROGRAMS_BEHAVE || MAKE_USER_PROGRAMS_BEHAVE? PROT_WRITE : 0), MAP_PRIVATE, fd, 0); - if ((int)address_space < 0 || (int)good_address_map < 0) { - write_log ("Your system does not have enough virtual memory - increase swap.\n"); - abort (); + 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); + } } -#ifdef MAKE_USER_PROGRAMS_BEHAVE - memset (address_space + 0xDFF180, 0xFF, 32*2); -#else - /* Likewise. This is mostly for mouse button checks. */ - if (USER_PROGRAMS_BEHAVE) - memset (address_space + 0xA00000, 0xFF, 0xF00000 - 0xA00000); -#endif - 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); + 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; + } - 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 < allocated_chipmem; 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); -#else - kickmemory = (uae_u8 *)xmalloc (kickmem_size); - chipmemory = (uae_u8 *)malloc (allocated_chipmem); + 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; + } - while (! chipmemory && allocated_chipmem > 512*1024) { - allocated_chipmem >>= 1; - chipmemory = (uae_u8 *)malloc (allocated_chipmem); - if (chipmemory) - fprintf (stderr, "Reducing chipmem size to %dkb\n", allocated_chipmem >> 10); + 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 (! chipmemory) { - write_log ("virtual memory exhausted (chipmemory)!\n"); - abort (); + + 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); } -#endif + chipmem_bank.baseaddr = chipmemory; + bogomem_bank.baseaddr = bogomemory; + a3000lmem_bank.baseaddr = a3000lmemory; + a3000hmem_bank.baseaddr = a3000hmemory; +} - do_put_mem_long ((uae_u32 *)(chipmemory + 4), 0); - init_mem_banks (); +void map_overlay (int chip) +{ + int i = allocated_chipmem > 0x200000 ? (allocated_chipmem >> 16) : 32; + addrbank *cb; - /* Map the chipmem into all of the lower 16MB */ - map_banks (&chipmem_bank, 0x00, 256); - custom_start = 0xC0; - - map_banks (&custom_bank, custom_start, 0xE0-custom_start); - map_banks (&cia_bank, 0xA0, 32); - map_banks (&clock_bank, 0xDC, 1); - - /* @@@ Does anyone have a clue what should be in the 0x200000 - 0xA00000 - * range on an Amiga without expansion memory? */ - custom_start = allocated_chipmem >> 16; - if (custom_start < 0x20) - custom_start = 0x20; - map_banks (&dummy_bank, custom_start, 0xA0 - custom_start); - /*map_banks (&mbres_bank, 0xDE, 1);*/ - - if (allocated_bogomem > 0) - bogomemory = (uae_u8 *)xmalloc (allocated_bogomem); - if (bogomemory != 0) - map_banks (&bogomem_bank, 0xC0, allocated_bogomem >> 16); + cb = &chipmem_bank; + if (chip) + map_banks (cb, 0, i, allocated_chipmem); else - allocated_bogomem = 0; + map_banks (&kickmem_bank, 0, i, 0x80000); + if (savestate_state != STATE_RESTORE) + m68k_setpc (m68k_getpc ()); +} - if (allocated_a3000mem > 0) - a3000memory = (uae_u8 *)xmalloc (allocated_a3000mem); - if (a3000memory != 0) - map_banks (&a3000mem_bank, a3000mem_start >> 16, allocated_a3000mem >> 16); - else - allocated_a3000mem = 0; +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); + } - map_banks (&rtarea_bank, 0xF0, 1); - if (! load_kickstart ()) { + if (need_hardreset) + memory_hardreset (); +} + +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; } - map_banks (&kickmem_bank, 0xF8, 8); - map_banks (&expamem_bank, 0xE8, 1); - if (cloanto_rom) - map_banks (&kickmem_bank, 0xE0, 8); + init_mem_banks (); + memory_reset (); - chipmem_mask = allocated_chipmem- 1; kickmem_mask = kickmem_size - 1; - bogomem_mask = allocated_bogomem - 1; - a3000mem_mask = allocated_a3000mem - 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; 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 + + 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) { - for (bnr = start; bnr < start + size; bnr++) - put_mem_bank (bnr << 16, bank); + 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; } - /* Some '020 Kickstarts apparently require a 24 bit address space... */ - if (currprefs.address_space_24) + /* Already in currprefs, since we get called after m68k_reset. */ + if (last_address_space_24) endhioffs = 0x10000; - for (hioffs = 0; hioffs < endhioffs; hioffs += 0x100) - for (bnr = start; bnr < start+size; bnr++) - put_mem_bank ((bnr + hioffs) << 16, bank); + 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; +} + +#if 0 +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; +} +#endif + +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; }