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Notes for ESC protection, nw

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This commit is contained in:
angelosa 2015-12-08 00:22:07 +01:00
parent 8f07bc7977
commit a58f5e3a47
2 changed files with 17 additions and 4 deletions
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20
src/mame/drivers/konamigx.cpp
View File

@ -166,12 +166,23 @@
// Say hello to gokuparo at 0x2a285c
/*!
@todo
- Daisu Kiss: sets up 0x00257e28 as set variable in a 2p game after beating specific stages, and causes a game breaking sticky sprite.
It actually also sets up something that looks like non-sprite sub-commands in the same area (example is for character select), I'm inclined to think upper bits are actually used for something else:
00010005
00000006
000e0002
002e0080
- Sexy Parodius: sets up p1 as 2 at start of stage 1. Related to missing snow?
*/
static struct sprite_entry {
int pri;
UINT32 adr;
} sprites[0x100];
static void generate_sprites(address_space &space, UINT32 src, UINT32 spr, int count)
void konamigx_state::generate_sprites(address_space &space, UINT32 src, UINT32 spr, int count)
{
int scount = 0;
int ecount = 0;
@ -207,7 +218,7 @@ static void generate_sprites(address_space &space, UINT32 src, UINT32 spr, int c
UINT16 color_set = 0x0000;
UINT16 color_rotate = 0x0000;
UINT16 v;
v = space.read_word(adr+24);
if(v & 0x8000) {
color_mask = 0xf3ff;
@ -236,10 +247,11 @@ static void generate_sprites(address_space &space, UINT32 src, UINT32 spr, int c
zoom_x = 0x40;
if(!zoom_y)
zoom_y = 0x40;
if(set >= 0x200000 && set < 0xd00000)
{
UINT16 count2 = space.read_word(set);
set += 2;
while(count2) {
UINT16 idx = space.read_word(set);
@ -247,7 +259,7 @@ static void generate_sprites(address_space &space, UINT32 src, UINT32 spr, int c
UINT16 col = space.read_word(set+4);
short y = space.read_word(set+6);
short x = space.read_word(set+8);
if(idx == 0xffff) {
set = (flip<<16) | col;
if(set >= 0x200000 && set < 0xd00000)

1
src/mame/includes/konamigx.h
View File

@ -164,6 +164,7 @@ public:
void konamigx_mixer_init(screen_device &screen, int objdma);
void konamigx_objdma(void);
void generate_sprites(address_space &space, UINT32 src, UINT32 spr, int count);
void fantjour_dma_install();