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-rw-r--r--src/mame/dataeast/deco156_m.cpp70
1 files changed, 35 insertions, 35 deletions
diff --git a/src/mame/dataeast/deco156_m.cpp b/src/mame/dataeast/deco156_m.cpp
index d1dae4948cb..5de666c9ee3 100644
--- a/src/mame/dataeast/deco156_m.cpp
+++ b/src/mame/dataeast/deco156_m.cpp
@@ -6,29 +6,33 @@
The 156 Chip is used on the following games:
- deco_mlc.c
+ dataeast/deco_mlc.cpp
- Stadium Hero 96 (stadhr96, stadh96a)
- Skull Fang (skullfng)
- Dunk Dream '95 / Hoops '96 (ddream95, hoops96)
+ Stadium Hero 96 (stadhr96*)
+ Skull Fang (skullfng*)
+ Dunk Dream '95 / Hoops / Hoops '96 (ddream95, hoops95, hoops96)
+ Janken Game Acchi Muite Hoi! (acchi)
- deco32.c
+ dataeast/deco32.cpp
- Night Slashers (nslasher, nslashej)
+ Night Slashers (nslasher*)
- simpl156
+ dataeast/simpl156.cpp
Charlie Ninja (charlien)
- Magical Drop / Magical Drop Plus / Chain Reaction (magdrop, magdropp, chainrec)
- Joe & Mac Returns (joemacr, joemacra)
+ Magical Drop / Magical Drop Plus 1 / Chain Reaction (magdrop, magdropp, chainrec)
+ Joe & Mac Returns (joemacr*)
Party Time / Ganbare! Gonta!! 2 (prtytime, gangonta)
+ Osman / Cannon Dancer (osman, candance)
- deco156.c
+ dataeast/deco156.cpp
- Osman (osman)
- Heavy Smash (hvysmsh)
- World Cup Volly '95 (wcvol95)
- Backfire!! (backfire, backfira)
+ Heavy Smash (hvysmsh*)
+ World Cup Volley '95 (wcvol95*)
+
+ dataeast/backfire.cpp
+
+ Backfire! (backfire*)
*/
@@ -38,13 +42,9 @@
static void decrypt(uint32_t *src, uint32_t *dst, int length)
{
- int a;
-
- for (a = 0; a < length/4; a++)
+ for (int a = 0; a < length / 4; a++)
{
- int addr, dword;
-
- addr = (a & 0xff0000) | 0x92c6;
+ int addr = (a & 0xff0000) | 0x92c6;
if (a & 0x0001) addr ^= 0xce4a;
if (a & 0x0002) addr ^= 0x4db2;
@@ -63,7 +63,7 @@ static void decrypt(uint32_t *src, uint32_t *dst, int length)
if (a & 0x4000) addr ^= 0x1eef;
if (a & 0x8000) addr ^= 0xf5a5;
- dword = src[addr];
+ uint32_t dword = src[addr];
// note that each of the following lines affects exactly two bits
@@ -87,35 +87,35 @@ static void decrypt(uint32_t *src, uint32_t *dst, int length)
switch (a & 3)
{
case 0:
- dword = bitswap<32>( dword ^ 0xec63197a,
- 1, 4, 7, 28, 22, 18, 20, 9,
+ dword = bitswap<32>(dword ^ 0xec63197a,
+ 1, 4, 7, 28, 22, 18, 20, 9,
16, 10, 30, 2, 31, 24, 19, 29,
- 6, 21, 23, 11, 12, 13, 5, 0,
- 8, 26, 27, 15, 14, 17, 25, 3 );
+ 6, 21, 23, 11, 12, 13, 5, 0,
+ 8, 26, 27, 15, 14, 17, 25, 3);
break;
case 1:
- dword = bitswap<32>( dword ^ 0x58a5a55f,
+ dword = bitswap<32>(dword ^ 0x58a5a55f,
14, 23, 28, 29, 6, 24, 10, 1,
- 5, 16, 7, 2, 30, 8, 18, 3,
+ 5, 16, 7, 2, 30, 8, 18, 3,
31, 22, 25, 20, 17, 0, 19, 27,
- 9, 12, 21, 15, 26, 13, 4, 11 );
+ 9, 12, 21, 15, 26, 13, 4, 11);
break;
case 2:
- dword = bitswap<32>( dword ^ 0xe3a65f16,
+ dword = bitswap<32>(dword ^ 0xe3a65f16,
19, 30, 21, 4, 2, 18, 15, 1,
12, 25, 8, 0, 24, 20, 17, 23,
22, 26, 28, 16, 9, 27, 6, 11,
- 31, 10, 3, 13, 14, 7, 29, 5 );
+ 31, 10, 3, 13, 14, 7, 29, 5);
break;
case 3:
- dword = bitswap<32>( dword ^ 0x28d93783,
+ dword = bitswap<32>(dword ^ 0x28d93783,
30, 6, 15, 0, 31, 18, 26, 22,
14, 23, 19, 17, 10, 8, 11, 20,
- 1, 28, 2, 4, 9, 24, 25, 27,
- 7, 21, 13, 29, 5, 3, 16, 12 );
+ 1, 28, 2, 4, 9, 24, 25, 27,
+ 7, 21, 13, 29, 5, 3, 16, 12);
break;
}
@@ -127,8 +127,8 @@ static void decrypt(uint32_t *src, uint32_t *dst, int length)
void deco156_decrypt(running_machine &machine)
{
uint32_t *rom = (uint32_t *)machine.root_device().memregion("maincpu")->base();
- int length = machine.root_device().memregion("maincpu")->bytes();
- std::vector<uint32_t> buf(length/4);
+ int const length = machine.root_device().memregion("maincpu")->bytes();
+ std::vector<uint32_t> buf(length / 4);
memcpy(&buf[0], rom, length);
decrypt(&buf[0], rom, length);