Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-06-08 13:53:52 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

Fixed decrypted opcodes hookup, makes it to not crash during attract, nw

Browse Source
This commit is contained in:
angelosa 2016-05-17 23:39:26 +02:00
parent 29d11280a1
commit ebdf217d1b
1 changed files with 20 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/mame/drivers/metlfrzr.cpp
View File

@ -1,9 +1,20 @@
// license:BSD-3-Clause // license:BSD-3-Clause
// copyright-holders:David Haywood // copyright-holders:Angelo Salese
/* /****************************************
Metal Freezer (c) 1989 Seibu
*/ preliminary driver by Angelo Salese
HW seems the natural evolution of Dark Mist type HW.
TODO:
- T5182 hookup, controls sound and coins;
- Sprites, 0xfe00-0xffff? (And why game doesn't actually write at 0xff80-0xffff?)
- Foreground rowscroll / per-tile scroll;
- Writes at 0xb800-0xbfff at attract mode gameplay demo transition?
****************************************/
#include "emu.h" #include "emu.h"
#include "cpu/z80/z80.h" #include "cpu/z80/z80.h"
@ -73,17 +84,18 @@ UINT32 metlfrzr_state::screen_update_metlfrzr(screen_device &screen, bitmap_ind1
WRITE8_MEMBER(metlfrzr_state::output_w) WRITE8_MEMBER(metlfrzr_state::output_w)
{ {
// bit 7: flip screen // bit 7: flip screen
// bit 1-0: unknown purpose, both 1s too generally
m_fg_tilebank = (data & 0x10) >> 4; m_fg_tilebank = (data & 0x10) >> 4;
membank("bank1")->set_entry((data & 0xc) >> 2); membank("bank1")->set_entry((data & 0xc) >> 2);
if(data & 0x7f) if(data & 0x63)
printf("%02x\n",data); printf("%02x\n",data);
} }
static ADDRESS_MAP_START( metlfrzr_map, AS_PROGRAM, 8, metlfrzr_state ) static ADDRESS_MAP_START( metlfrzr_map, AS_PROGRAM, 8, metlfrzr_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM AM_RANGE(0x0000, 0x7fff) AM_ROM
AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1") AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1")
AM_RANGE(0xc000, 0xc7ff) AM_RAM AM_SHARE("vram") AM_RANGE(0xc000, 0xcfff) AM_RAM AM_SHARE("vram")
AM_RANGE(0xd000, 0xd1ff) AM_RAM_DEVWRITE("palette", palette_device, write_indirect) AM_SHARE("palette") AM_RANGE(0xd000, 0xd1ff) AM_RAM_DEVWRITE("palette", palette_device, write_indirect) AM_SHARE("palette")
AM_RANGE(0xd200, 0xd3ff) AM_RAM_DEVWRITE("palette", palette_device, write_indirect_ext) AM_SHARE("palette_ext") AM_RANGE(0xd200, 0xd3ff) AM_RAM_DEVWRITE("palette", palette_device, write_indirect_ext) AM_SHARE("palette_ext")
@ -96,11 +108,13 @@ static ADDRESS_MAP_START( metlfrzr_map, AS_PROGRAM, 8, metlfrzr_state )
AM_RANGE(0xd700, 0xd700) AM_WRITE(output_w) AM_RANGE(0xd700, 0xd700) AM_WRITE(output_w)
AM_RANGE(0xd800, 0xdfff) AM_RAM AM_RANGE(0xd800, 0xdfff) AM_RAM
AM_RANGE(0xe000, 0xefff) AM_RAM AM_RANGE(0xe000, 0xefff) AM_RAM
AM_RANGE(0xf000, 0xffff) AM_RAM AM_RANGE(0xf000, 0xffff) AM_RAM AM_SHARE("wram")
ADDRESS_MAP_END ADDRESS_MAP_END
static ADDRESS_MAP_START( decrypted_opcodes_map, AS_DECRYPTED_OPCODES, 8, metlfrzr_state ) static ADDRESS_MAP_START( decrypted_opcodes_map, AS_DECRYPTED_OPCODES, 8, metlfrzr_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM AM_SHARE("decrypted_opcodes") AM_RANGE(0x0000, 0x7fff) AM_ROM AM_SHARE("decrypted_opcodes")
AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1")
AM_RANGE(0xf000, 0xffff) AM_RAM AM_SHARE("wram") // executes code at 0xf5d5
ADDRESS_MAP_END ADDRESS_MAP_END