I have the following debug script that I use. I wish to understand it to make changes to it. I am familiar with debug. But I can't understand the "e ds:0610 command...particularly the 'ds' part. Is it assembeler code? Similarly I have lack understanding of "rf", "nz", and "zr". Can you please get me started or point to a resource.

Thanks,
Right


g 0b2a
e ds:0610
04
e ds:0611
9c
e ds:0612
63
p
f ds:05c5 05ff 20
e ds:0613
0d
e ds:0614
0a
g 030d
t
g 0054
rf
nz
g 019d
rf
zr
g 01cd
rf
zr
g 0225
rf
zr
g
q