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author AJR <ariedlmayer@gmail.com>2025-02-21 19:26:37 -0500
committer AJR <ariedlmayer@gmail.com>2025-02-21 19:27:17 -0500
commitb977c3343211018774815bb53cc04aeea130bf97 (patch)
tree5d140d59befd7b5b5400c884eb17b9c9c802541f
parentdad2240ceec62eff8fd2cce6f4a76e9cf2ef3b54 (diff)
bus/qbus/tdl12.cpp: Update notes
-rw-r--r--src/devices/bus/qbus/tdl12.cpp8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/devices/bus/qbus/tdl12.cpp b/src/devices/bus/qbus/tdl12.cpp
index b9ea3a6df71..7556669fe01 100644
--- a/src/devices/bus/qbus/tdl12.cpp
+++ b/src/devices/bus/qbus/tdl12.cpp
@@ -117,12 +117,12 @@ ROM_START(tdl12)
ROM_REGION(0x4000, "firmware", 0)
ROM_LOAD("tdl-12_v180.bin", 0x0000, 0x4000, CRC(fd0f4468) SHA1(1cf0bf8702747ff3047691d2b661bb08d40754f0)) // Am(27128?)-25DC
- ROM_REGION(0x40, "proms", 0) // probably either Q-bus address decode or a short bootstrap program
- ROM_LOAD("m_tdl-11.bin", 0x00, 0x20, NO_DUMP) // N82S123AN
- ROM_LOAD("m_tdl-12.bin", 0x20, 0x20, NO_DUMP) // N82S123AN
+ ROM_REGION16_LE(0x40, "proms", 0) // probably PDP-11 bootstrap code (address & CE inputs are in common)
+ ROM_LOAD16_BYTE("m_tdl-11.bin", 0x00, 0x20, NO_DUMP) // N82S123AN
+ ROM_LOAD16_BYTE("m_tdl-12.bin", 0x01, 0x20, NO_DUMP) // N82S123AN
ROM_REGION(0x7a1, "plds", 0)
- ROM_LOAD("mst_tdl-13.bin", 0x000, 0x117, NO_DUMP) // TIBPAL16L8-25CN (socketed, next to A/B jumpers)
+ ROM_LOAD("mst_tdl-13.bin", 0x000, 0x117, NO_DUMP) // TIBPAL16L8-25CN (socketed, next to A/B jumpers; also decodes address)
ROM_LOAD("mst_tdl-21.bin", 0x117, 0x117, NO_DUMP) // TIBPAL16L8-25CN
ROM_LOAD("mst_tdl-26.bin", 0x22e, 0x117, NO_DUMP) // TIBPAL16L8-25CN
ROM_LOAD("mst_tdl-31.bin", 0x345, 0x117, NO_DUMP) // TIBPAL16L8-25CN