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- ;************************************************************************
- ;* *
- ;* HELLO.ASM: This program prints "Hello." to the screen. Big *
- ;* deal, huh? Point is, when the resultant .COM program is run, *
- ;* it does the SAME thing under CP/M-80 or MS-DOS| Maybe some of *
- ;* those small, but handy utility routines can now use this so *
- ;* the programs run under both systems| This example is coded *
- ;* in 8080 code, although the same thing could be worked out with *
- ;* 8088 code. Now if we could get this program to also work with *
- ;* an Apple ][ and a MAC, then we'd have something| Who says *
- ;* that machine independant assembly language can't be done? *
- ;* Written by Mark D. Pickerill 24 Feb. 1988. (SYSOP of "Hacker *
- ;* Heaven" RCP/M at (408) 375-5455.) *
- ;* *
- ;************************************************************************
- ;
- RIM: EQU 20H ; Rim opcode
- ;
- ORG 0100H ; Start of tpa
- XCHG ; Jmp short
- INX D ; To just past the string
- MVI C,09H ; Print string function
- LXI D,MESSAGE ; Point
- CALL 0005H ; Call bdos
- RET ; To cp/m
- MESSAGE:DB 0DH,0AH,'Hello.$'
- NOP ; Space filler
- MVI C,1FH ; Push cs,pop ds
- CMP D ; Mov dx,
- DCX B ; 0b
- LXI B,09B4H ; 01: mov ah,09h
- CALL 0CD21H ; Int 21, int
- DB RIM ; 20 ;terminate program
- END