8080/8085 Software Design, Volume 2
Howard W. Sams, 1979 - Computers - 348 pages
List of program examples. Asynchronous serial communications. Interrupts. Interrupt applications. Data structures. Searching. Sorting. Look-up tables. Command decoders. System monitors. Breakpoints and debuggers. The MK5009 MOS counter time-base circuit. Microcomputer interfacing.
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Asmcrmouoos SERIAL COMMUNICATIONS
A SoftwareBased Asynchronous Serial Transmission Subroutine
A SoftwareBased Asynchronous Serial Transmitter Subroutine
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16-bit address address in register angle ASCII characters ASCII value breakpoint address BRKADD byte carriage return command decoder contains content of memory data values data word DCXH debugger decremented DELAY subroutine display ENABLE THE INTERRUPT entered ﬁnd ﬁrst ﬁve ﬂag HEXADECIMAL INCREMENT THE MEMORY input instruction is executed instruction op code instruction register integrated circuit interface interrupt service subroutine key is pressed keyboard LIST ADDRESS listed in Example LOAD REGISTER PAIR logic look-up table LSBY LXIH LXISP MAIN TASK memory address memory location addressed memory-mapped I/O microcomputer MOVAM MSBY MVIA node count octal output pair H PCHL peripheral device PRINT R/W memory read from memory real-time clock restart instruction RST5 rupt sine sort stack pointer starting address stored in memory string system monitor teletypewriter or crt test zip code transmitted TTYIN TTYOUT UART USART user’s vectored ZERO