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sinclair/tsconf.cpp: Changed default ram data to 0x00; cram full init #13823

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Merged
merged 2 commits into from
Jun 16, 2025
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sinclair/tsconf.cpp: Changed default ram data to 0x00; cram full init #13823

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6080c0f
sinclair/tsconf.cpp: Changed default ram data to 0x00; cram full init
holub Jun 13, 2025
aab542d
init from region
holub Jun 14, 2025
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9 changes: 8 additions & 1 deletion src/mame/sinclair/tsconf.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -231,6 +231,10 @@ void tsconf_state::machine_reset()

m_keyboard->write(0xff);
while (m_keyboard->read() != 0) { /* invalidate buffer */ }

u16 const *const cram_init = &memregion("cram_init")->as_u16();
for (auto i = 0; i < 0x100; i++)
cram_write16(i << 1, cram_init[i]); // init color RAM
}

void tsconf_state::device_post_load()
Expand Down Expand Up @@ -286,7 +290,7 @@ void tsconf_state::tsconf(machine_config &config)
ZXBUS_SLOT(config, "zxbus1", 0, "zxbus", zxbus_cards, nullptr);
//ZXBUS_SLOT(config, "zxbus2", 0, "zxbus", zxbus_cards, nullptr);

m_ram->set_default_size("4096K");
m_ram->set_default_size("4096K").set_default_value(0x00); // must be random but 0x00 behaves better than 0xff in tested software

GLUKRS(config, m_glukrs);

Expand Down Expand Up @@ -339,6 +343,9 @@ ROM_START(tsconf)

ROM_SYSTEM_BIOS(1, "v2407", "Update 24.07.28")
ROMX_LOAD("ts-bios.240728.rom", 0, 0x10000, CRC(19f8ad7b) SHA1(9cee82d4a6212686358a50b0fd5a2981b3323ab6), ROM_BIOS(1))

ROM_REGION(0x200, "cram_init", ROMREGION_ERASEFF)
ROM_LOAD( "cram-init.bin", 0, 0x200, CRC(8b96ffb7) SHA1(4dbd22f4312251e922911a01526cbfba77a122fc))
ROM_END

// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
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