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The monitor
comm~nds
are :
Control C
=
Load disk boot loader
o
SSSS 0000
= Dump memory in hex from SSSS to OQQO
F
ssss
OQOO BB
=
Fill memory from SSSS to OQQQ with BB
G AAAA
=
Go to address AAAA
L AAAA
=
Load memory starting at AAAA
M
=
Memory Test
P
ssss
QQQO
=
print in ascii from SSSS to OQOO
R
=
Find system ram
S SSSS QQQQ
=
Search for byte pattern
T
=
Test Memory
ESC will terminate any command
The coldboot loader will select and home drive 0.
Track 0 sector 1 will be read into memory at location 0 •..
Single density is assumed for track 0.
If an errOL occures an error code will be printed.
The error code must be translated
using the table
in appendex F page F-4 fig 2.
2.4
Cold Boot program
; REAO TRACK 0 SECTOR 1 INTO MEMORY
BOOT:
F4BS 3E00
MVI
A,00H
F4B7 03aC
OUT
FOC
F4B9 00
NOP
FOCW1:
F4BA OB0C
IN
FOC
F4BC 0F
RRC
F4BD OABAF4
JC
FDCWl
F4C0 00
NOP
F4Cl 00
NOP
F4C2 00
NOP
RESET FOC
; ISSUE COMMAND
; CHECK BUSY
KILL TIME
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