Lines Matching refs:PSR

99  - PSR.be = cleared to zero (i.e., little-endian byte order is in effect)
158 from the shadow register bank, it could temporarily disable PSR.i and
159 PSR.ic, switch to bank 0 (bsw.0) and then use the shadow registers as
171 PSR.lp and returns immediately.  When fsys-mode is exited via the
173 occur.  The trap handler clears PSR.lp again and returns immediately.
176 * PSR Handling
178 The "epc" instruction doesn't change the contents of PSR at all.  This
181 work as expected.  The following discussion describes how each PSR bit
184 PSR.be	Cleared when entering fsys-mode.  A srlz.d instruction is used
186 	load/store instruction is executed.  PSR.be is normally NOT
188 	words, user-level code must not rely on PSR.be being preserved
190 PSR.up	Unchanged.
191 PSR.ac	Unchanged.
192 PSR.mfl Unchanged.  Note: fsys-mode handlers must not write-registers!
193 PSR.mfh	Unchanged.  Note: fsys-mode handlers must not write-registers!
194 PSR.ic	Unchanged.  Note: fsys-mode handlers can clear the bit, if needed.
195 PSR.i	Unchanged.  Note: fsys-mode handlers can clear the bit, if needed.
196 PSR.pk	Unchanged.
197 PSR.dt	Unchanged.
198 PSR.dfl	Unchanged.  Note: fsys-mode handlers must not write-registers!
199 PSR.dfh	Unchanged.  Note: fsys-mode handlers must not write-registers!
200 PSR.sp	Unchanged.
201 PSR.pp	Unchanged.
202 PSR.di	Unchanged.
203 PSR.si	Unchanged.
204 PSR.db	Unchanged.  The kernel prevents user-level from setting a hardware
206 PSR.lp	Unchanged.
207 PSR.tb	Lazy redirect.  If a taken-branch trap occurs while in
218 PSR.rt	Unchanged.
219 PSR.cpl	Cleared to 0.
220 PSR.is	Unchanged (guaranteed to be 0 on entry to the gate page).
221 PSR.mc	Unchanged.
222 PSR.it	Unchanged (guaranteed to be 1).
223 PSR.id	Unchanged.  Note: the ia64 linux kernel never sets this bit.
224 PSR.da	Unchanged.  Note: the ia64 linux kernel never sets this bit.
225 PSR.dd	Unchanged.  Note: the ia64 linux kernel never sets this bit.
226 PSR.ss	Lazy redirect.  If set, "epc" will cause a Single Step Trap to
230 PSR.ri	Unchanged.
231 PSR.ed	Unchanged.  Note: This bit could only have an effect if an fsys-mode
235 PSR.bn	Unchanged.  Note: fsys-mode handlers may clear the bit, if needed.
236 	Doing so requires clearing PSR.i and PSR.ic as well.
237 PSR.ia	Unchanged.  Note: the ia64 linux kernel never sets this bit.