Commit Graph

15 Commits

Author SHA1 Message Date
edgar_igl
cddffe3739 CRIS: Partial EXS reg support and fixes for SPC.
* Add partial support for the EXS (exception status) register.
* Update SPC after each singlestep exception.
* Remove special treatment of break 8.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5448 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-08 14:22:17 +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
980f8a0b39 CRIS: Mask off the cache selection bit after MMU translations.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5170 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-05 17:17:55 +00:00
edgar_igl
7d5099d5a4 CRIS: Remove redundant code.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5145 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-03 14:30:27 +00:00
edgar_igl
1b1a38b0aa CRIS: Emulate NMIs.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4719 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-09 23:18:06 +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
ef29a70d18 CRIS MMU Updates
* Add support for exec faults and for the k protection bit.
* Abort if search_pc causes recursive mmu faults.



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4349 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-06 08:04:40 +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
e62b5b133b * Add a model of the ETRAX interrupt controller.
* Clean up the interrupt handling a bit.
* Connect some NOR flash to the test board.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4055 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-14 01:04:24 +00:00
edgar_igl
bbaf29c769 * target-cris/op.c: Make sure the bit-test insn only updates the XNZ flags.
* target-cris/helper.c: Update ERP for user-mode simulation aswell.
* hw/etraxfs_timer.c: Support multiple timers.
* hw/etraxfs_ser.c: Multiple ports, the data just goes to stdout.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4004 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-01 17:25:33 +00:00
edgar_igl
9004627f9b More consistent naming for CRIS register-number macros.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3996 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-28 08:28:32 +00:00
ths
941db52871 Use the shiny new clz helpers.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3464 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-28 01:44:40 +00:00
j_mayer
6ebbf39000 Replace is_user variable with mmu_idx in softmmu core,
allowing support of more than 2 mmu access modes.
Add backward compatibility is_user variable in targets code when needed.
Implement per target cpu_mmu_index function, avoiding duplicated code
  and #ifdef TARGET_xxx in softmmu core functions.
Implement per target mmu modes definitions. As an example, add PowerPC
  hypervisor mode definition and Alpha executive and kernel modes definitions.
Optimize PowerPC case, precomputing mmu_idx when MSR register changes
  and using the same definition in code translation code.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3384 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-14 07:07:08 +00:00
ths
81fdc5f8d2 The remainder of CRIS CPU emulation files, by Edgar E. Iglesias.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3361 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-08 13:04:02 +00:00