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Diffstat (limited to 'doc/mdk.texi')
| -rw-r--r-- | doc/mdk.texi | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/doc/mdk.texi b/doc/mdk.texi index acf6b09..650fe97 100644 --- a/doc/mdk.texi +++ b/doc/mdk.texi @@ -417,21 +417,20 @@ structure: @multitable @columnfractions .15 .20 .65 @item @emph{Subfield} @tab @emph{fspec} @tab @emph{Description} - @item ADDRESS @tab (0:2) @tab The first two bytes plus sign are the @dfn{address} field. Combined with the INDEX field, denotes the memory address to be used by the instruction. -@item INDEX @tab (3:3) @tab -The third byte is the @dfn{index}, normally used for indexing the +@item INDEX @tab (3:3) +@tab The third byte is the @dfn{index}, normally used for indexing the address@footnote{The actual memory address the instruction refers to, is obtained by adding to ADDRESS the value of the @samp{rI} register denoted by INDEX.}. -@item MOD @tab (4:4) @tab -Byte four is used either as an operation code modifier or as a field +@item MOD @tab (4:4) +@tab Byte four is used either as an operation code modifier or as a field specification. -@item OPCODE @tab (5:5) @tab -The last (least significant) byte in the word denotes the operation +@item OPCODE @tab (5:5) +@tab The last (least significant) byte in the word denotes the operation code. @end multitable |