diff options
Diffstat (limited to 'src/machine.tex')
| -rw-r--r-- | src/machine.tex | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/machine.tex b/src/machine.tex index 5280156..f4ef940 100644 --- a/src/machine.tex +++ b/src/machine.tex @@ -2357,6 +2357,8 @@ if an atomic instruction that accesses a region ordered as device I/O has its {\em aq} and/or {\em rl} bit set, then that instruction is ordered as though it accesses both device I/O and memory. +If S-mode is not supported, implementations may hardwire FIOM to zero. + \begin{table}[h!] \begin{center} \begin{tabular}{|c|l|} |