From 14a94c1c9075478d8acceef5d50511c689e6d7f1 Mon Sep 17 00:00:00 2001 From: Lord-Nightmare Date: Fri, 21 Sep 2018 14:34:05 -0400 Subject: Verified the dump of 5000026.u18 on the very earliest (prototype?) IBM 5160 XT BIOS revision. [MicroCoreLabs] --- src/mame/drivers/ibmpc.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/mame/drivers/ibmpc.cpp b/src/mame/drivers/ibmpc.cpp index 29360686561..17252e45276 100644 --- a/src/mame/drivers/ibmpc.cpp +++ b/src/mame/drivers/ibmpc.cpp @@ -467,12 +467,12 @@ ROM_START( ibm5160 ) ROM_DEFAULT_BIOS( "rev4" ) - ROM_SYSTEM_BIOS( 0, "rev1", "IBM XT 5160 08/16/82" ) /* ROM at u18 marked as BAD_DUMP for now, as current dump, while likely correct, was regenerated from a number of smaller dumps, and needs a proper redump. */ - ROMX_LOAD("5000027.u19", 0x0000, 0x8000, CRC(fc982309) SHA1(2aa781a698a21c332398d9bc8503d4f580df0a05), ROM_BIOS(0) ) - ROMX_LOAD("5000026.u18", 0x8000, 0x8000, BAD_DUMP CRC(3c9b0ac3) SHA1(271c9f4cef5029a1560075550b67c3395db09fef), ROM_BIOS(0) ) /* This is probably a good dump, and works fine, but as it was manually regenerated based on a partial dump, it needs to be reverified. It's a very rare rom revision and may have only appeared on XT prototypes. */ + ROM_SYSTEM_BIOS( 0, "rev1", "IBM XT 5160 08/16/82" ) /* This is a very rare ROM revision and may have only appeared on XT prototypes. Only 2 machines with this ROM set have been observed in the wild so far. */ + ROMX_LOAD("5000027.u19", 0x0000, 0x8000, CRC(fc982309) SHA1(2aa781a698a21c332398d9bc8503d4f580df0a05), ROM_BIOS(0) ) /* silkscreen "MK37050N-4 // 5000027 // ZA // (C) IBM 1982 // D MALAYSIA // 8248 B" - FRU: 6359116 - Alt Silkscreen (from yesterpc.com): "(M) // 5000027 // (C) 1983 IBM CORP // X E // 8425B NM"; Contents repeat 4 times */ + ROMX_LOAD("5000026.u18", 0x8000, 0x8000, CRC(3c9b0ac3) SHA1(271c9f4cef5029a1560075550b67c3395db09fef), ROM_BIOS(0) ) /* ceramic chip; silkscreen "MK38022 P-25 // 5000026 // ZA // (C) IBM 1982 // D DALLAS // 8304" */ ROM_SYSTEM_BIOS( 1, "rev2", "IBM XT 5160 11/08/82" ) /* Same as PC 5155 BIOS and PC/3270 BIOS */ - ROMX_LOAD("5000027.u19", 0x0000, 0x8000, CRC(fc982309) SHA1(2aa781a698a21c332398d9bc8503d4f580df0a05), ROM_BIOS(1) ) /* silkscreen "MK37050N-4 // 5000027" - FRU: 6359116 - Contents repeat 4 times; Alt Silkscreen (from yesterpc.com): "(M) // 5000027 // (C) 1983 IBM CORP // X E // 8425B NM"*/ + ROMX_LOAD("5000027.u19", 0x0000, 0x8000, CRC(fc982309) SHA1(2aa781a698a21c332398d9bc8503d4f580df0a05), ROM_BIOS(1) ) /* silkscreen "MK37050N-4 // 5000027 // ZA // (C) IBM 1982 // D MALAYSIA // 8248 B" - FRU: 6359116 - Alt Silkscreen (from yesterpc.com): "(M) // 5000027 // (C) 1983 IBM CORP // X E // 8425B NM"; Contents repeat 4 times */ ROMX_LOAD("1501512.u18", 0x8000, 0x8000, CRC(79522c3d) SHA1(6bac726d8d033491d52507278aa388ec04cf8b7e), ROM_BIOS(1) ) /* silkscreen "MK38036N-25 // 1501512 // ZA // (C)IBM CORP // 1981,1983 // D MALAYSIA // 8438 AP"*/ ROM_SYSTEM_BIOS( 2, "rev3", "IBM XT 5160 01/10/86" ) /* Has enhanced keyboard support and a 3.5" drive */ -- cgit v1.2.3