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misc/jackpot.cpp: set with unmap_value_high, makes it to initialize EEPROM to a sane default

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This commit is contained in:
angelosa 2023-07-01 22:45:20 +02:00
parent 2cdb53e220
commit 1df28a1aa4
1 changed files with 3 additions and 2 deletions
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5
src/mame/misc/jackpot.cpp
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@ -142,6 +142,7 @@ uint32_t jackpot_state::screen_update(screen_device &screen, bitmap_ind16 &bitma
void jackpot_state::prg_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x7fff).rom(); // after this, ROM is 0xff filled but in the range 0x1e000 - 0x1efff. Where does it get mapped?
// 0xd514, 0xd516 triplets for a 1bpp RAMDAC (???)
map(0xd518, 0xd51f).lr8(
@ -160,9 +161,9 @@ void jackpot_state::prg_map(address_map &map)
map(0xd800, 0xdfff).ram().share("nvram"); // MK48Z02B?
// 384x256 needs 0x600 bytes, assume the rest unmapped
map(0xe000, 0xe5ff).ram().share(m_vram).w(FUNC(jackpot_state::vram_w));
map(0xe600, 0xefff).ram();
map(0xe600, 0xefff).noprw();
map(0xf000, 0xf5ff).ram().share(m_attr).w(FUNC(jackpot_state::attr_w));
map(0xf600, 0xf7ff).ram();
map(0xf600, 0xf7ff).noprw();
}
void jackpot_state::sound_prg_map(address_map &map)