17.05.2015 Views

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

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

___<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

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!