From 3e2915660f606e64d03921d7aad3bcb9de1dd55b Mon Sep 17 00:00:00 2001 From: cracyc Date: Fri, 23 Jul 2021 22:00:52 -0500 Subject: sslam: try to fix graphics --- src/mame/drivers/sslam.cpp | 5 +++++ src/mame/includes/sslam.h | 2 ++ 2 files changed, 7 insertions(+) diff --git a/src/mame/drivers/sslam.cpp b/src/mame/drivers/sslam.cpp index 3b067bf0f97..e984cd3c363 100644 --- a/src/mame/drivers/sslam.cpp +++ b/src/mame/drivers/sslam.cpp @@ -379,6 +379,9 @@ void sslam_state::sslam_program_map(address_map &map) map(0x000000, 0xffffff).rom(); /* I don't honestly know where the rom is mirrored .. so all unmapped reads / writes go to rom */ map(0x000400, 0x07ffff).ram(); + // maybe video register, protection in fpga, rand? Nothing about this is hardware correct. + map(0x000458, 0x00045b).lrw16([this](offs_t offset) { return offset ? m_unk_458 : m_unk_458 >> 16; }, "unk_458_r", + [this](offs_t offset, uint16_t data) { if(offset) m_unk_458 = (data & 0xfff) * 0xb1; }, "unk_458_w"); map(0x100000, 0x103fff).ram().w(FUNC(sslam_state::sslam_bg_tileram_w)).share("bg_tileram"); map(0x104000, 0x107fff).ram().w(FUNC(sslam_state::sslam_md_tileram_w)).share("md_tileram"); map(0x108000, 0x10ffff).ram().w(FUNC(sslam_state::sslam_tx_tileram_w)).share("tx_tileram"); @@ -693,11 +696,13 @@ void sslam_state::machine_start() m_track = 0; m_melody = 0; m_bar = 0; + m_unk_458 = 0; save_item(NAME(m_track)); save_item(NAME(m_melody)); save_item(NAME(m_bar)); save_item(NAME(m_snd_bank)); + save_item(NAME(m_unk_458)); m_music_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(sslam_state::music_playback),this)); } diff --git a/src/mame/includes/sslam.h b/src/mame/includes/sslam.h index a3f5c5230be..76b306115c1 100644 --- a/src/mame/includes/sslam.h +++ b/src/mame/includes/sslam.h @@ -62,6 +62,8 @@ protected: uint8_t m_oki_command; uint8_t m_oki_bank; + uint32_t m_unk_458; + tilemap_t *m_bg_tilemap; tilemap_t *m_tx_tilemap; tilemap_t *m_md_tilemap; -- cgit v1.2.3