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Null pointer are not allowed any more for in-bound indeces in the CSA

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table.
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keie 1984-10-01 14:54:09 +00:00
parent 6da6316680
commit 1bea1c6883
1 changed files with 1 additions and 2 deletions
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doc/em/descr.nr
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@ -114,8 +114,7 @@ then fetch the new PC from the list of instruction pointers by indexing with
index-lower. index-lower.
The table does not contain the value of the upper bound, The table does not contain the value of the upper bound,
but the value of upper-lower as an unsigned integer. but the value of upper-lower as an unsigned integer.
If the index is out of bounds or if the fetched pointer is 0, The default instruction pointer is used when the index is out of bounds.
then fetch the default instruction pointer.
If the resulting PC is 0, then trap. If the resulting PC is 0, then trap.
.P .P
CSB selects the new PC by searching. CSB selects the new PC by searching.