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astrcorp.cpp: two more address bits are involved in the magibomb descrambling

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This commit is contained in:
Ivan Vangelista 2020-12-30 18:04:33 +01:00
parent d95b885da9
commit 61533f0521
1 changed files with 22 additions and 14 deletions
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36
src/mame/drivers/astrcorp.cpp
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@ -48,6 +48,8 @@ To do:
#include "speaker.h"
namespace {
class astrocorp_state : public driver_device
{
public:
@ -179,9 +181,6 @@ void astrocorp_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clipre
for ( ; source < finish; source += 8 / 2 )
{
int x, y;
int xwrap, ywrap;
int sx = source[ 0x0/2 ];
int code = source[ 0x2/2 ];
int sy = source[ 0x4/2 ];
@ -199,13 +198,13 @@ void astrocorp_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clipre
sx &= 0x01ff;
sy &= 0x00ff;
for (y = 0 ; y < dimy ; y++)
for (int y = 0 ; y < dimy ; y++)
{
for (x = 0 ; x < dimx ; x++)
for (int x = 0 ; x < dimx ; x++)
{
for (ywrap = 0 ; ywrap <= 0x100 ; ywrap += 0x100)
for (int ywrap = 0 ; ywrap <= 0x100 ; ywrap += 0x100)
{
for (xwrap = 0 ; xwrap <= 0x200 ; xwrap += 0x200)
for (int xwrap = 0 ; xwrap <= 0x200 ; xwrap += 0x200)
{
m_gfxdecode->gfx(0)->transpen(bitmap,cliprect,
code, 0,
@ -424,9 +423,9 @@ void astrocorp_state::magibomb_map(address_map &map) // TODO: check everything,
map(0x0b0000, 0x0b01ff).ram().w(m_palette, FUNC(palette_device::write16)).share("palette");
// tbd
map(0xe00000, 0xe00001).w(FUNC(astrocorp_state::astrocorp_screen_enable_w));
map(0xe80000, 0xe80001).w(FUNC(astrocorp_state::skilldrp_sound_bank_w));
map(0xf00001, 0xf00001).rw(m_oki, FUNC(okim6295_device::read), FUNC(okim6295_device::write));
//map(0xX00000, 0xX00001).w(FUNC(astrocorp_state::astrocorp_screen_enable_w));
//map(0xX80000, 0xX80001).w(FUNC(astrocorp_state::skilldrp_sound_bank_w));
//map(0xX00001, 0xX00001).rw(m_oki, FUNC(okim6295_device::read), FUNC(okim6295_device::write));
}
/***************************************************************************
@ -1467,7 +1466,9 @@ void astrocorp_state::init_magibomb() // to be checked, game still doesn't work.
for(u32 i = 0; i < 0x20000; i++)
{
u32 dest =
(i & 0xffffe0ff) |
(i & 0xffff20ff) |
(BIT(i, 14) << 15) |
(BIT(i, 15) << 14) |
(BIT(i, 8) << 12) |
(BIT(i, 12) << 11) |
(BIT(i, 9) << 10) |
@ -1477,17 +1478,24 @@ void astrocorp_state::init_magibomb() // to be checked, game still doesn't work.
}
}
} // Anonymous namespace
GAME( 2000, showhand, 0, showhand, showhand, astrocorp_state, init_showhand, ROT0, "Astro Corp.", "Show Hand (Italy)", MACHINE_SUPPORTS_SAVE )
GAME( 2000, showhanc, showhand, showhanc, showhanc, astrocorp_state, init_showhanc, ROT0, "Astro Corp.", "Wang Pai Dui Jue (China)", MACHINE_SUPPORTS_SAVE )
GAME( 2002, skilldrp, 0, skilldrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Skill Drop Georgia (Ver. G1.0S)", MACHINE_SUPPORTS_SAVE )
GAME( 2003, speeddrp, 0, speeddrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Speed Drop (Ver. 1.06)", MACHINE_SUPPORTS_SAVE )
// Encrypted games (not working):
// Simpler encryption
GAME( 2001?, magibomb, 0, magibomb, skilldrp, astrocorp_state, init_magibomb, ROT0, "Astro Corp.", "Magic Bomb (Ver. L3.5S)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )// no gfx dumps, less complex encryption
GAME( 2002, magibomba, magibomb, magibomb, skilldrp, astrocorp_state, init_magibomb, ROT0, "Astro Corp.", "Magic Bomb (Ver. BR4.4, 04/19/02)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )// one bad program ROM, no gfx dumps, less complex encryption
GAME( 2002, magibombb, magibomb, magibomb, skilldrp, astrocorp_state, init_magibomb, ROT0, "Astro Corp.", "Magic Bomb (Ver. AB4.5A, 07/10/02)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )// no gfx dumps, less complex encryption
GAME( 2001, magibombc, magibomb, magibomb, skilldrp, astrocorp_state, init_magibomb, ROT0, "Astro Corp.", "Magic Bomb (Ver. AB4.2, 11/10/01)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )// no gfx dumps, less complex encryption
GAME( 2001?, magibombe, magibomb, magibomb, skilldrp, astrocorp_state, init_magibomb, ROT0, "Astro Corp.", "Magic Bomb (Ver. A3.1A)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )// no gfx dumps, less complex encryption
GAME( 2002, skilldrp, 0, skilldrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Skill Drop Georgia (Ver. G1.0S)", MACHINE_SUPPORTS_SAVE )
GAME( 2003, speeddrp, 0, speeddrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Speed Drop (Ver. 1.06)", MACHINE_SUPPORTS_SAVE )
// Encrypted games (not working):
// Heavier encryption
GAME( 2003?, dinodino, 0, skilldrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Dino Dino", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
GAME( 2004?, astoneag, 0, skilldrp, skilldrp, astrocorp_state, init_astoneag, ROT0, "Astro Corp.", "Stone Age (Astro, Ver. ENG.03.A)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
GAME( 2005, magibombd, magibomb, magibomb, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Magic Bomb (Ver. AA.72D, 14/11/05)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) // and no gfx dump