sun4.cpp: Added preliminary Sun4/25 support. (#8691)

New clones marked as not working ----------------------------- Sun Microsystems SPARCstation ELC (Sun 4/25) [Yvan Janssens]
mamedev · Oct 17, 2021 · 7ed0317 · 7ed0317
1 parent a7b07ba
commit 7ed0317
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diff --git a/src/mame/drivers/sun4.cpp b/src/mame/drivers/sun4.cpp
@@ -662,6 +662,7 @@ class sun4c_state : public sun4_base_state
 
 	void sun4c(machine_config &config);
 	void sun4_20(machine_config &config);
+	void sun4_25(machine_config &config);
 	void sun4_40(machine_config &config);
 	void sun4_50(machine_config &config);
 	void sun4_60(machine_config &config);
@@ -1513,6 +1514,31 @@ void sun4c_state::sun4_20(machine_config &config)
 	m_sbus_slot[2]->set_fixed(true);
 }
 
+void sun4c_state::sun4_25(machine_config& config)
+{
+	sun4c(config);
+
+	m_ram->set_extra_options("16M,32M,48M,64M");
+
+	//m_mmu->set_ctx_mask(0xf);
+	m_mmu->set_pmeg_mask(0xff);
+	m_mmu->set_cache_line_size(32);
+	m_mmu->set_clock(33'000'000);
+	m_maincpu->set_clock(33'000'000);
+
+	m_ram->set_default_size("64M");
+
+	m_sbus->set_clock(25'000'000);
+	m_sbus_slot[0]->set_clock(25'000'000);
+	m_sbus_slot[1]->set_clock(25'000'000);
+	m_sbus_slot[2]->set_clock(25'000'000);
+
+	m_sbus_slot[0]->set_fixed(true);
+	m_sbus_slot[1]->set_fixed(true);
+	m_sbus_slot[2]->set_default_option("bwtwo");
+	m_sbus_slot[2]->set_fixed(true);
+}
+
 void sun4c_state::sun4_40(machine_config &config)
 {
 	sun4c(config);
@@ -1741,6 +1767,12 @@ ROM_START( sun4_20 )
 	ROM_LOAD( "520-2748-04.rom", 0x0000, 0x20000, CRC(e85b3fd8) SHA1(4cbc088f589375e2d5983f481f7d4261a408702e))
 ROM_END
 
+// SPARCstation ELC (Sun 4/25)
+ROM_START(sun4_25)
+	ROM_REGION32_BE( 0x80000, "user1", ROMREGION_ERASEFF )
+	ROM_LOAD( "520-3085-03.rom", 0x0000, 0x40000, CRC(faafaf0d) SHA1(23a1b78392883b06eff9f7828e955399b6daa3d6))
+ROM_END
+
 // SPARCstation 1 (Sun 4/60)
 /* SCC init 1 for the keyboard is identical to Sun 4/75 init 3 */
 ROM_START( sun4_60 )
@@ -1831,6 +1863,7 @@ COMP( 198?, sun4_400, 0,        0,      sun4,    sun4,  sun4_state,  empty_init,
 COMP( 1990, sun4_40,  sun4_300, 0,      sun4_40, sun4,  sun4c_state, empty_init, "Sun Microsystems", "SPARCstation IPC (Sun 4/40)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )
 COMP( 1991, sun4_50,  sun4_300, 0,      sun4_50, sun4,  sun4c_state, empty_init, "Sun Microsystems", "SPARCstation IPX (Sun 4/50)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
 COMP( 199?, sun4_20,  sun4_300, 0,      sun4_20, sun4,  sun4c_state, empty_init, "Sun Microsystems", "SPARCstation SLC (Sun 4/20)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
+COMP( 1992, sun4_25,  sun4_300, 0,      sun4_25, sun4,  sun4c_state, empty_init, "Sun Microsystems", "SPARCstation ELC (Sun 4/25)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
 COMP( 1989, sun4_60,  sun4_300, 0,      sun4_60, sun4,  sun4c_state, empty_init, "Sun Microsystems", "SPARCstation 1 (Sun 4/60)",   MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )
 COMP( 1990, sun4_65,  sun4_300, 0,      sun4_65, sun4,  sun4c_state, empty_init, "Sun Microsystems", "SPARCstation 1+ (Sun 4/65)",  MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
 COMP( 1990, sun4_75,  sun4_300, 0,      sun4_75, sun4,  sun4c_state, empty_init, "Sun Microsystems", "SPARCstation 2 (Sun 4/75)",   MACHINE_NOT_WORKING | MACHINE_NO_SOUND )

diff --git a/src/mame/mame.lst b/src/mame/mame.lst
@@ -39725,6 +39725,7 @@ sun3_460                        //
 sun_s10                         //
 sun_s20                         //
 sun4_20                         //
+sun4_25                         //
 sun4_110                        //
 sun4_300                        //
 sun4_400                        //