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port 0x64 opcode 0xd1 should incur no delay when delivering.

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This allows, for example, su2000 to start booting to the CMOS setup screen [Peter Ferrie]
This commit is contained in:
Miodrag Milanovic 2012-10-11 14:58:01 +00:00
parent 5eddf17e70
commit bf49acd20e
1 changed files with 1 additions and 1 deletions
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src/emu/machine/8042kbdc.c
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@ -557,7 +557,7 @@ WRITE8_HANDLER(kbdc8042_8_w)
/* write output port; next byte written to port 60h is placed on
* 8042 output port */
kbdc8042.operation_write_state = 1;
break;
return; /* instant delivery */
case 0xd2:
/* write keyboard output register; on PS/2 systems next port 60h
* write is written to port 60h output register as if initiated