This patch adds FR450 support to the FR-V port. The FR450 similar in many
respects to the FR405, the main differences being:
- it has an MMU
- it has some new special purpose registers, including 4 more accumulators
- it has some new media instructions
- the media issue restrictions are slightly more relaxed
- the latency of some operations is different
Other changes in this patch:
- add a -mcpu=fr405 option to gas
- make gas check whether the target supports a particular instruction
The patch also includes various test cases for the new functionality.
No docs changes, since there aren't any FR-V docs that I can see...
Tested against the binutils and sim testsuites. OK to install?
Richard
include/elf/
* frv.h (EF_FRV_CPU_FR405, EF_FRV_CPU_FR450): Define.
bfd/
* archures.c (bfd_mach_fr450): New.
* bfd-in2.h: Regenerate.
* cpu-frv.c (arch_info_450): New bfd_arch_info_type.
(arch_info_500): Link to it.
* elf32-frv.c (elf32_frv_machine, frv_elf_merge_private_bfd_data)
(frv_elf_print_private_bfd_data): Handle fr405 and fr450 header flags.
(frv_elf_arch_extension_p): New function.
(frv_elf_merge_private_bfd_data): Use it.
cpu/
* frv.cpu (define-arch frv): Add fr450 mach.
(define-mach fr450): New.
(define-model fr450): New. Add profile units to every fr450 insn.
(define-attr UNIT): Add MDCUTSSI.
(define-attr FR450-MAJOR): New enum. Add to every fr450 insn.
(define-attr AUDIO): New boolean.
(f-LRAE, f-LRAD, f-LRAS, f-TLBPRopx, f-TLBPRL)
(f-LRA-null, f-TLBPR-null): New fields.
(scr0, scr1, scr2, scr3, imavr1, damvr1, cxnr, ttbr)
(tplr, tppr, tpxr, timerh, timerl, timerd, btbr): New SPRs.
(LRAE, LRAD, LRAS, TLBPRopx, TLBPRL): New operands.
(LRA-null, TLBPR-null): New macros.
(iacc-multiply-r-r, slass, scutss, int-arith-ss-r-r): Add AUDIO attr.
(load-real-address): New macro.
(lrai, lrad, tlbpr): New instructions.
(media-cut-acc, media-cut-acc-ss): Add fr450-major argument.
(mcut, mcuti, mcutss, mcutssi): Adjust accordingly.
(mdcutssi): Change UNIT attribute to MDCUTSSI.
(media-low-clear-semantics, media-scope-limit-semantics)
(media-quad-limit, media-quad-shift): New macros.
(mqlclrhs, mqlmths, mqsllhi, mqsrahi): New instructions.
* frv.opc (frv_is_branch_major, frv_is_float_major, frv_is_media_major)
(frv_is_branch_insn, frv_is_float_insn, frv_is_media_insn)
(frv_vliw_reset, frv_vliw_add_insn): Handle bfd_mach_fr450.
(fr450_unit_mapping): New array.
(fr400_unit_mapping, fr500_unit_mapping, fr550_unit_mapping): Add entry
for new MDCUTSSI unit.
(fr450_check_insn_major_constraints): New function.
(check_insn_major_constraints): Use it.
gas/
* config/tc-frv.c (fr400_audio): New variable.
(md_parse_option, md_show_usage): Add -mcpu=fr405 and -mcpu=fr450.
(md_parse_option): Set fr400_audio for -mcpu=fr400 and -mcpu=fr405.
(target_implements_insn_p): New function.
(md_assemble): Report an error if the processor doesn't implement
the instruction.
gas/testsuite/
* gas/frv/fr405-insn.[sdl]: New test.
* gas/frv/fr450-spr.[sd]: New test.
* gas/frv/fr450-insn.[sdl]: New test.
* gas/frv/fr450-media-issue.[sl]: New test.
* gas/frv/allinsn.exp: Run new tests. Ensure fr405 instructions
aren't accepted for -mcpu=fr400 or -mcpu=fr500. Ensure fr450
instructions aren't accepted for -mcpu=fr400, -mcpu=fr405 or
-mcpu=fr500.
sim/frv/
* Makefile.in (SIM_OBJS): Add profile-fr450.o.
(profile-fr450.o): New dependency.
(stamp-cpu): Add fr450 to the list of machs.
* sim-frv.h (SPR_IS_ACC): New macro.
(H_SPR_ACC4, H_SPR_ACC63, H_SPR_ACCG4, H_SPR_ACCG63): Delete.
* cache.c (frv_cache_init, non_cache_access): Handle bfd_mach_fr450.
* frv.c (check_register_alignment, check_fr_register_alignment)
(check_memory_alignment, do_media_average): Likewise.
(frvbf_clear_accumulators): Likewise. Use a mask of valid registers
rather than a consecutive range.
* interrupts.c (frv_queue_illegal_instruction_interrupt)
(frv_queue_non_implemented_instruction_interrupt): Handle
bfd_mach_fr450.
* memory.c (check_data_read_address, check_readwrite_address)
(check_insn_read_address, check_write_address): Likewise.
* mloop.in (@cpu@_simulate_insn_prefetch): Likewise.
* profile.c (reset_gr_flags, reset_fr_flags, reset_acc_flags)
(frvbf_model_insn_before, frvbf_model_insn_after): Likewise.
* profile-fr450.c: New file.
* registers.c (fr450_spr): New array.
(frv_register_control_init): Check its size. Use it for fr450.
(frv_check_register_access): Handle bfd_mach_fr450.
(frv_check_spr_read_access): Likewise. Generalize accumulator check.
* traps.c (frv_core_signal, frvbf_media_cr_not_aligned): Likewise.
(frvbf_media_acc_not_aligned): Likewise.
(frvbf_media_register_not_aligned): Likewise.
sim/testsuite/
* sim/frv/allinsn.exp (all_machs): Add fr405 and fr450.
* sim/fr400/allinsn.exp (all_machs): Likewise.
* sim/fr400/addss.cgs (mach): Change to "fr405 fr450".
* sim/fr400/scutss.cgs (mach): Likewise.
* sim/fr400/slass.cgs (mach): Likewise.
* sim/fr400/smass.cgs (mach): Likewise.
* sim/fr400/smsss.cgs (mach): Likewise.
* sim/fr400/smu.cgs (mach): Likewise.
* sim/fr400/subss.cgs (mach): Likewise.
* sim/interrupts/fp_exception.cgs: Replace fmadds with .word.
* sim/interrupts/fp_exception-fr550.cgs: Likewise.
* sim/frv/mqlclrhs.cgs: New test.
* sim/frv/mqlmths.cgs: New test.
* sim/frv/mqsllhi.cgs: New test.
* sim/frv/mqsrahi.cgs: New test.
ld/testsuite/
* ld-frv/fr450-link[abc].s, fr450-link.d: New test.
* ld-frv/frv.exp: New harness.