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https://github.com/holub/mame
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Fix MT #00101
This commit is contained in:
angelosa
parent
2acac39d91
commit
0c9e11b5ae
@ -2518,11 +2518,83 @@ DRIVER_INIT_MEMBER( kaneko16_state, kaneko16 )
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kaneko16_unscramble_tiles("gfx3");
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}
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DRIVER_INIT_MEMBER( kaneko16_berlwall_state, berlwall )
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/*
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berlwallt original bug ?
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info from SebV:
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After about level 5 or so, if you insert a coin when the continue screen
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pops up, an error message "Copy Board" pops up.
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----------------------------------------
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Happened to me when player dies, at level 4.
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The message is not written in ROM, its sprite ram address is (always?)
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$30fd40
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Routine $337d2 writes it (and routine $5c8c erases it)
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The 'COPY BOARD!' message in stored in ROM directly as sprite number
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($1cfa8)
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$20288a : seems to contain the level number (initialized to 2 (?) when a
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game is started, and is incremented by 1 once a level is finished)
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01CF3E: move.b $20288a.l, D0
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01CF44: cmpi.b #$d, D0
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01CF48: bcs 1cf76 ; branch not taken -=> 'COPY BOARD!'
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01CF4A: movem.l D0/A0-A2, -(A7)
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01CF4E: movea.l A0, A1
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01CF50: lea ($4c,PC), A0; ($1cf9e)
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01CF54: nop
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01CF56: lea ($a,A0), A0 ; A0 = $1cfa8 = 'COPY BOARD!'
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01CF5A: lea $30e064.l, A1
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01CF60: lea (-$64,A1), A1
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01CF64: lea ($1d40,A1), A1
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01CF68: move.b #$80, D1
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01CF6C: jsr $33776.l ; display routine
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01CF72: movem.l (A7)+, D0/A0-A2
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01CF76:
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berlwall levels: 1-1,2,3(anim),...
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berlwallt levels: 1-1(anim)2-1/2/3/4/5(anim)3-1/2/3/4/5(anim)4-1(*)
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note: berlwall may be genuine while berlwallt may be bootleg! because
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stage 1-1 of berlwallt is stage 1-3 of berlwall, and berlwall has
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explanation ingame.
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(TAFA flyers exist for both berlwall and berlwallt player graphics)
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--------------------------------------------------------------------------------
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*/
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// TODO: this is certainly a protection issue, the level number variable can go up to 0x2f, which is way bigger than 0xd.
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// Sprite DMA decryption? @see berlwall_spriteram_r
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void kaneko16_berlwall_state::patch_protection(uint32_t bra_offset,uint16_t bra_value,uint16_t checksum)
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{
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uint16_t *ROM = (uint16_t *)memregion("maincpu")->base();
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ROM[bra_offset/2] = bra_value;
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ROM[0x3fffe/2] = checksum;
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}
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DRIVER_INIT_MEMBER(kaneko16_berlwall_state, berlwall_common)
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{
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kaneko16_unscramble_tiles("gfx2");
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}
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DRIVER_INIT_MEMBER( kaneko16_berlwall_state, berlwall )
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{
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DRIVER_INIT_CALL(berlwall_common);
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patch_protection(0x1a3ea,0x602c,0xc40d);
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}
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DRIVER_INIT_MEMBER( kaneko16_berlwall_state, berlwallt )
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{
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DRIVER_INIT_CALL(berlwall_common);
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patch_protection(0x1cf48,0x602c,0xaed4);
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}
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DRIVER_INIT_MEMBER( kaneko16_berlwall_state, berlwallk )
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{
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DRIVER_INIT_CALL(berlwall_common);
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patch_protection(0x1ceb0,0x602c,0x8364);
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}
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DRIVER_INIT_MEMBER( kaneko16_state, samplebank )
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{
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kaneko16_unscramble_tiles("gfx2");
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@ -2738,51 +2810,6 @@ ROM_START( berlwall )
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ROM_LOAD( "bw_u54.u54", 0x400, 0x0117, NO_DUMP)
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ROM_END
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/*
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berlwallt original bug ?
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info from SebV:
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After about level 5 or so, if you insert a coin when the continue screen
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pops up, an error message "Copy Board" pops up.
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----------------------------------------
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Happened to me when player dies, at level 4.
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The message is not written in ROM, its sprite ram address is (always?)
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$30fd40
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Routine $337d2 writes it (and routine $5c8c erases it)
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The 'COPY BOARD!' message in stored in ROM directly as sprite number
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($1cfa8)
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$20288a : seems to contain the level number (initialized to 2 (?) when a
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game is started, and is incremented by 1 once a level is finished)
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01CF3E: move.b $20288a.l, D0
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01CF44: cmpi.b #$d, D0
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01CF48: bcs 1cf76 ; branch not taken -=> 'COPY BOARD!'
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01CF4A: movem.l D0/A0-A2, -(A7)
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01CF4E: movea.l A0, A1
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01CF50: lea ($4c,PC), A0; ($1cf9e)
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01CF54: nop
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01CF56: lea ($a,A0), A0 ; A0 = $1cfa8 = 'COPY BOARD!'
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01CF5A: lea $30e064.l, A1
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01CF60: lea (-$64,A1), A1
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01CF64: lea ($1d40,A1), A1
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01CF68: move.b #$80, D1
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01CF6C: jsr $33776.l ; display routine
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01CF72: movem.l (A7)+, D0/A0-A2
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01CF76:
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berlwall levels: 1-1,2,3(anim),...
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berlwallt levels: 1-1(anim)2-1/2/3/4/5(anim)3-1/2/3/4/5(anim)4-1(*)
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note: berlwall may be genuine while berlwallt may be bootleg! because
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stage 1-1 of berlwallt is stage 1-3 of berlwall, and berlwall has
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explanation ingame.
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(TAFA flyers exist for both berlwall and berlwallt player graphics)
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--------------------------------------------------------------------------------
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*/
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ROM_START( berlwallt )
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ROM_REGION( 0x040000, "maincpu", 0 ) /* 68000 Code */
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ROM_LOAD16_BYTE( "bw100a.u23", 0x000000, 0x020000, CRC(e6bcb4eb) SHA1(220b8fddc79230b4f6a8cf33e1035355c485e8d1) )
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@ -4441,9 +4468,9 @@ DRIVER_INIT_MEMBER( kaneko16_shogwarr_state, brapboys )
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***************************************************************************/
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GAME( 1991, berlwall, 0, berlwall, berlwall, kaneko16_berlwall_state, berlwall, ROT0, "Kaneko", "The Berlin Wall", MACHINE_SUPPORTS_SAVE )
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GAME( 1991, berlwallt,berlwall, berlwall, berlwallt,kaneko16_berlwall_state, berlwall, ROT0, "Kaneko", "The Berlin Wall (bootleg?)", MACHINE_SUPPORTS_SAVE )
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GAME( 1991, berlwallk,berlwall, berlwall, berlwallk,kaneko16_berlwall_state, berlwall, ROT0, "Kaneko (Inter license)", "The Berlin Wall (Korea)", MACHINE_SUPPORTS_SAVE )
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GAME( 1994, packbang, 0, berlwall, packbang, kaneko16_berlwall_state, berlwall, ROT90, "Kaneko", "Pack'n Bang Bang (prototype)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS ) // priorities between stages?
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GAME( 1991, berlwallt,berlwall, berlwall, berlwallt,kaneko16_berlwall_state, berlwallt, ROT0, "Kaneko", "The Berlin Wall (bootleg?)", MACHINE_SUPPORTS_SAVE )
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GAME( 1991, berlwallk,berlwall, berlwall, berlwallk,kaneko16_berlwall_state, berlwallk, ROT0, "Kaneko (Inter license)", "The Berlin Wall (Korea)", MACHINE_SUPPORTS_SAVE )
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GAME( 1994, packbang, 0, berlwall, packbang, kaneko16_berlwall_state, berlwall_common, ROT90, "Kaneko", "Pack'n Bang Bang (prototype)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS ) // priorities between stages?
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GAME( 1991, mgcrystl, 0, mgcrystl, mgcrystl, kaneko16_state, kaneko16, ROT0, "Kaneko", "Magical Crystals (World, 92/01/10)", MACHINE_SUPPORTS_SAVE )
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GAME( 1991, mgcrystlo,mgcrystl, mgcrystl, mgcrystl, kaneko16_state, kaneko16, ROT0, "Kaneko", "Magical Crystals (World, 91/12/10)", MACHINE_SUPPORTS_SAVE )
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@ -164,10 +164,15 @@ public:
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DECLARE_WRITE16_MEMBER(berlwall_spriteregs_w);
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DECLARE_DRIVER_INIT(berlwall);
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DECLARE_DRIVER_INIT(berlwallk);
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DECLARE_DRIVER_INIT(berlwallt);
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DECLARE_DRIVER_INIT(berlwall_common);
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DECLARE_PALETTE_INIT(berlwall);
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DECLARE_VIDEO_START(berlwall);
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uint32_t screen_update_berlwall(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
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void kaneko16_render_15bpp_bitmap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
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void patch_protection(uint32_t bra_offset,uint16_t bra_value,uint16_t checksum);
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};
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class kaneko16_shogwarr_state : public kaneko16_state
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