DATA 620/i SYSTEM REFERENCE MANUAL . - Al Kossow's Bitsavers
DATA 620/i SYSTEM REFERENCE MANUAL . - Al Kossow's Bitsavers
DATA 620/i SYSTEM REFERENCE MANUAL . - Al Kossow's Bitsavers
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___<br />
The contents of the A register are placed in the effective<br />
memory location.<br />
Relative: Yes<br />
Indexing: Yes<br />
Indirect Addressing: Yes<br />
Registers <strong>Al</strong>tered: Memory<br />
Store B Register<br />
Timing: 2 cycles<br />
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 0<br />
r-r- ! 06 M A<br />
L _.L _ "'".-----_'--...;,...;,.,......_...L-___ -:...;~ ___ ____I<br />
lIS-bit I<br />
option<br />
The contents of the B register are placed in the effective<br />
memory location.<br />
Relative: Yes<br />
Indexing: Yes<br />
Indirect Addressing: Yes<br />
Registers <strong>Al</strong>tered: Memory<br />
Store Index Register<br />
Timing: 2 cycles<br />
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 0<br />
r-T-: L _ .J... _ .L._____ 07 M A<br />
---J~<br />
lIS-bit I<br />
option<br />
....I..-________ ____'<br />
The contents of the X register are placed in the effective<br />
memory location.<br />
Relative: Yes<br />
Indexing: Yes<br />
Indirect Addressing: Yes<br />
Registers <strong>Al</strong>tered: Memory<br />
Arithmetic instruction group. The following paragraphs<br />
provide the mnemonic, description, and timing for each<br />
instruction in the arithmeti c group. Figures 3-4 and 3-5<br />
show the genera I flow for the ari thmeti c instruction group.<br />
3-7