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13 Commits

Author SHA1 Message Date
edgar_igl 6231868b11 CRIS: Purify some of the flag evaluation helpers.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6227 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07 23:38:41 +00:00
edgar_igl c38ac98da5 CRIS: Use a helper for lz.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6205 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07 13:19:21 +00:00
edgar_igl abd5c94ee1 CRIS: Speedup btst by using a helper.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6203 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07 13:11:22 +00:00
edgar_igl a8cf66bb39 CRIS: Slight performance improvement for flag evaluation.
Translate sub and cmp ops separately when evaluating flags to avoid checking
for them at runtime.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6198 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07 12:25:15 +00:00
pbrook a7812ae412 TCG variable type checking.
Signed-off-by: Paul Brook <paul@codesourcery.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5729 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-17 14:43:54 +00:00
edgar_igl a1aebcb8e6 CRIS: Fix brk 8 and add S-flag emulation.
* break 8 sets ERP to the current insn.
* First shot at S flag single-stepping.
* Make it easier to use the local disasm.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5445 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07 22:48:41 +00:00
edgar_igl 28de16da38 CRIS: Improve ASID related TLB flushes.
* Speedup and correct ASID (PID) related TLB flushes.
* Use 64bit tcg load/stores to emulate movem.
* Remove unused helpers and other minor cleanups.

Signed-off-by: Edgar E. Iglesias <edgar@axis.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5302 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22 20:51:28 +00:00
edgar_igl 5bf8f1aba1 CRIS: Support RFN insn.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4718 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-09 23:07:50 +00:00
edgar_igl 30abcfc7ba CRIS: Restructure the translator to allow for better code generation.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4594 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-27 21:10:56 +00:00
edgar_igl cf1d97f074 CRIS: Improve TLB management and handle delayslots at page boundaries.
* Dont flush the entire qemu tlb when the $pid changes. Instead we go through
  the guests TLB and choose entries that need to be flushed.
* Add env->dslot and handle delayslots at pageboundaries.
* Remove some unused code.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4450 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-13 10:59:14 +00:00
edgar_igl dceaf39458 CRIS: More TCG conversion.
* Convert moves to/from support function regs (including TLB updates) to TCG.
* SCC no longer requires T0 to strictly be 0 or 1, relaxed to 0 or non-zero.
* Convert the the condition code evaluation to TCG.
* Convert rfe into a helper and TCG.
* Convert evaluate_bcc and setf to TCG.
* Convert clrf to TCG.
* Convert CRIS exception raising to TCG.
* Convert btst to TCG.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4376 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-07 15:24:53 +00:00
edgar_igl b41f7df018 CRIS updates:
* Support both the I and D MMUs and improve the accuracy of the MMU model.
* Handle the automatic user/kernel stack pointer switching when leaving or entering user mode.
* Move the CCS evaluation into helper funcs.
* Make sure user-mode cannot change flags only writeable in kernel mode.
* More conversion of the translator into TCG.
* Handle exceptions while in a delayslot.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4299 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-02 22:16:17 +00:00
edgar_igl 786c02f1ac Model more parts of the ETRAX mmu (still alot missing).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4056 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-14 01:08:09 +00:00