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156 Commits

Author SHA1 Message Date
Max Filippov
5da4a6a8c5 target-xtensa: implement JX/RET0/CALLX 
Group SNM0 (indirect jumps and calls).

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2011-09-10 16:57:37 +00:00
Max Filippov
bd57fb91ae target-xtensa: implement conditional jumps 
- BZ (comparison to zero);
- BI0 (comparison to signed immediate);
- BI1 (comparison to unsigned immediate);
- B (two registers comparison, bit sets comparison);
- BEQZ.N/BNEZ.N (narrow comparison to zero).

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2011-09-10 16:57:37 +00:00
Max Filippov
f331fe5e5f target-xtensa: implement RT0 group 
NEG and ABS are the only members of RT0 group.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2011-09-10 16:57:36 +00:00
Max Filippov
67882fd177 target-xtensa: implement narrow instructions 
Instructions with op0 >= 8 are 2 bytes long, others are 3 bytes long.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2011-09-10 16:57:36 +00:00
Max Filippov
dedc5eae23 target-xtensa: implement disas_xtensa_insn 
Set up disas_xtensa_insn switch structure, mark required options on high
level groups. Implement arithmetic/bit logic/jump/call0.

Implement code generation loop with single step/breakpoint checking.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2011-09-10 16:57:36 +00:00
Max Filippov
2328826b1d target-xtensa: add target stubs 
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2011-09-10 16:57:36 +00:00