cp_m_assembler_example
Table of Contents
CP/M Assembler 2.0 hello world!
Edit new file with WordMaster
A>wm hellow.asm
ORG 0100H ; CP/M base of TPA (transient program area) MVI C,09H ; Print string function LXI D,MESSAGE ; Point CALL 0005H ; Call bdos RET ; To cp/m MESSAGE:DB 0DH,0AH,'Hello, World!',0DH,0AH,'$' END
Assemble program
The assembler produces 8080 machine language in Intel hex format. The PRN file contains an annotated listing.
A>asm hellow CP/M ASSEMBLER - VER 2.0 011B 000H USE FACTOR END OF ASSEMBLY A>type hellow.hex :100100000E09110901CD0500C90D0A48656C6C6F17 :0B0110002C20576F726C64210D0A2434 :0000000000
Create binary file (.COM)
A>load hellow FIRST ADDRESS 0100 LAST ADDRESS 011A BYTES READ 001B RECORDS WRITTEN 01
Run the program
A>hellow Hello, World!
Dump hex / ascii
B>a:dump hellow.com 0000 0E 09 11 09 01 CD 05 00 C9 0D 0A 48 65 6C 6C 6F ...........Hello 0010 2C 20 57 6F 72 6C 64 21 0D 0A 24 00 00 00 00 00 , World!..$..... 0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
cp_m_assembler_example.txt · Last modified: 2021/10/09 15:14 by 127.0.0.1