Mercury Green 320, Service Manual

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01h Return keyboard status
02h Return shift flag status
03h Set typematic rate and delay
04h Reserved
05h Store
key data
06h-0Fh reserved
10h Read extended key input
11h Return extended keyboard status
12h Return extended shift flags status
13h-FFh reserved
17h Software Parallel Printer
AH Value Function
00h Print character
01h Initialize printer
02h Read printer status
03h-FFh reserved
18h Software Load ROM BASIC
19h Software Bootstrap Loader
1Ah Software System Timer and Real-Time Clock
AH Value Function
00h Read system timer time counter
01h Set system timer time counter
02h Read real time clock time
03h Set real time clock time
04h Read real time clock date
05h Set real time clock date
06h Reserved
07h
Set real time clock alarm
08h Read day of week from real time clock(SystmeSoft only)
09h Write day of week to real time clock(SystemSoft only)
0Ah-FFh Reserved
1Bh Software Keyboard Break
1Ch User User timer tick
1Dh BIOS table Video parameters table
1Eh BIOS table Diskette parameters table