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skeleton/cle68k.cpp: notes

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angelosa 2025-04-07 15:36:28 +02:00
parent 35b49fd3f2
commit 486479c815
1 changed files with 8 additions and 4 deletions
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12
src/mame/skeleton/cle68k.cpp
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@ -23,10 +23,11 @@ U6295 sound chip
TODO:
* correct GFX decode;
* correct GFX decode (address/data encrypted?);
* colors / attribute RAM;
* complete inputs;
* what role does the AT90S4414 play?
* $1e002x accesses during transitions (MCU flushes attribute/graphic RAM data?)
*/
@ -83,8 +84,10 @@ private:
template <uint8_t Which>
TILE_GET_INFO_MEMBER(cle68k_state::get_tile_info)
{
// TODO: out-of-range bit 15 used for gameplay reels (different tile layout?)
int const tile = m_videoram[Which][tile_index];
int const color = m_attrram[Which][tile_index] & 0xff;
// TODO: 4 bits for tile entry then rowscroll?
int const color = 0; //(m_attrram[Which][tile_index] >> 0) & 0xf;
tileinfo.set(Which, tile, color, 0);
}
@ -135,6 +138,7 @@ void cle68k_state::program_map(address_map &map)
map(0x1e0013, 0x1e0013).w(m_ramdac[1], FUNC(ramdac_device::pal_w));
map(0x1e0014, 0x1e0014).w(m_ramdac[0], FUNC(ramdac_device::mask_w));
map(0x1e0015, 0x1e0015).w(m_ramdac[1], FUNC(ramdac_device::mask_w));
// map(0x1e0020, 0x1e0023) 8-bit address/data pair for a device (MCU or RAMDAC)
map(0x1e0030, 0x1e0031).portr("IN1").nopw(); // TODO: video reg? outputs?
map(0x1e0032, 0x1e0033).portr("DSW1");
map(0x1e0034, 0x1e0035).portr("DSW2");
@ -547,8 +551,8 @@ INPUT_PORTS_END
static GFXDECODE_START( gfx_cle68k ) // TODO: correct decoding
GFXDECODE_ENTRY( "tiles", 0, gfx_8x8x4_packed_msb, 0x000, 1 )
GFXDECODE_ENTRY( "tiles", 0, gfx_8x8x4_packed_msb, 0x100, 1 )
GFXDECODE_ENTRY( "tiles", 0, gfx_8x8x4_packed_msb, 0x000, 16 )
GFXDECODE_ENTRY( "tiles", 0, gfx_8x8x4_packed_msb, 0x100, 16 )
GFXDECODE_END