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Is a monitor in machine language

MONITOR TAPE: A cassette tape which allows you to: • Examine or change memory using a formatted hex display • Save areas of memory to cassette in binary (a "CSAVEM") • Download/upload data or programs to a host system • Move the video display page throughout RAM • Send or receive RS-232 at up to 9800 baud • Investigate and activate features of your computer, such as hi-res graphics or machine language music • Use your color computer as an intelligent peripheral for another computer, a color display or a 6809 program development tool

The monitor hex to commands in all, and is relocatable and re-entrant. CBUGTape Price: $29.95.

MONITOR ROM: The same program as above, supplied in 2718 EPROM. This allows you to use the entire RAM space. And you don't need to re-load the monitor each time you use it. The EPROM plugs into the Extended Basic ROM Socket or a modified ROM PACK.

CBUG ROM Price: $39.95

Command Resume

G      = Go back to Basic, unless a ML subroutin has been ran, then use "*" (in Disk version, return to Disk Basic but, don't works).
R      = Display Registrers.
M XXXX = Display/Edit Memory (Display 8 Bytes with cursor in xxxx).
         Arrow = Position move; spacebar = right arrow
         Enter = Command end
         M     = New find
         Hex number = change byte
I FROM THRU BYTE = Fill bytes            (THRU inclusive).
T FROM THRU TO   = Transfer (copy) bytes (THRU inclusive).
J XXXX           = Jump subrutine. (end RTS)
C A,B,X,Y,U,C,P  = Change register list on stack.
S FROM THRU EXEC NAME = Save on cassette.(THRU inclusive).
B XXXX P/C       = Baud Rate (XXXX = 0110,0300,0600,1200,2400,4800,9600). (P = Printer or C = Modem)
L ADDR XX XX ... = Load hex, same "M" command without formating.
$ XXXX           = Convert hex to decimal.
. NNNNN          = Convert decimal to hex.
P XXXX           = Move display page
U FROM THRU      = Upload, send to comm bytes in Motorola's checksum format.
D                = Download 
!                = Take over software interrupt (Break point)
AU               = Auto mode. command thru comm link.
X F/H            = Terminal Mode. Emulate CRT (Full/Half) (only 110 baud)
*                = Reset to Basic (in Disk version, return to Disk Basic but, don't works).

Audio Test Example

CBUG:M 0700
0700 86 4F B7 FF  23 1F 89 F7
0708 FF 20 12 12  12 5C 26 F7
0710 4C 2A 01 4F  20 EF 3F 3F
CBUG:J 0700


CBUG Monitor, The Micro Works, Manual.pdf on Color Computer Archive
CBUG Monitor, The Micro Works, on disk in Color Computer Archive


Review: CBUG monitor (Rainbow 1981-08)


The MicroWork (Advertiser)