Lines Matching refs:PSR
103 PSR.be cleared to zero (i.e., little-endian byte order is in effect)
166 from the shadow register bank, it could temporarily disable PSR.i and
167 PSR.ic, switch to bank 0 (bsw.0) and then use the shadow registers as
180 PSR.lp and returns immediately. When fsys-mode is exited via the
182 occur. The trap handler clears PSR.lp again and returns immediately.
185 PSR Handling
188 The "epc" instruction doesn't change the contents of PSR at all. This
191 work as expected. The following discussion describes how each PSR bit
195 PSR.be Cleared when entering fsys-mode. A srlz.d instruction is used
197 load/store instruction is executed. PSR.be is normally NOT
199 words, user-level code must not rely on PSR.be being preserved
201 PSR.up Unchanged.
202 PSR.ac Unchanged.
203 PSR.mfl Unchanged. Note: fsys-mode handlers must not write-registers!
204 PSR.mfh Unchanged. Note: fsys-mode handlers must not write-registers!
205 PSR.ic Unchanged. Note: fsys-mode handlers can clear the bit, if needed.
206 PSR.i Unchanged. Note: fsys-mode handlers can clear the bit, if needed.
207 PSR.pk Unchanged.
208 PSR.dt Unchanged.
209 PSR.dfl Unchanged. Note: fsys-mode handlers must not write-registers!
210 PSR.dfh Unchanged. Note: fsys-mode handlers must not write-registers!
211 PSR.sp Unchanged.
212 PSR.pp Unchanged.
213 PSR.di Unchanged.
214 PSR.si Unchanged.
215 PSR.db Unchanged. The kernel prevents user-level from setting a hardware
218 PSR.lp Unchanged.
219 PSR.tb Lazy redirect. If a taken-branch trap occurs while in
230 PSR.rt Unchanged.
231 PSR.cpl Cleared to 0.
232 PSR.is Unchanged (guaranteed to be 0 on entry to the gate page).
233 PSR.mc Unchanged.
234 PSR.it Unchanged (guaranteed to be 1).
235 PSR.id Unchanged. Note: the ia64 linux kernel never sets this bit.
236 PSR.da Unchanged. Note: the ia64 linux kernel never sets this bit.
237 PSR.dd Unchanged. Note: the ia64 linux kernel never sets this bit.
238 PSR.ss Lazy redirect. If set, "epc" will cause a Single Step Trap to
242 PSR.ri Unchanged.
243 PSR.ed Unchanged. Note: This bit could only have an effect if an fsys-mode
247 PSR.bn Unchanged. Note: fsys-mode handlers may clear the bit, if needed.
248 Doing so requires clearing PSR.i and PSR.ic as well.
249 PSR.ia Unchanged. Note: the ia64 linux kernel never sets this bit.