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2016-02-02opcodes/cgen: Rework calculation of shift when inserting fieldsAndrew Burgess1-3/+10
The calculation of the shift amount, used to insert fields into the instruction buffer, is not correct when the following conditions are all true: - CGEN_INT_INSN_P is defined, and true. - CGEN_INSN_LSB0_P is true - Total instruction length is greater than the length of a single instruction word (the instruction is made of multiple words) - The word offset is non-zero (the field is outside the first word) When the above conditions are all true, the calculated shift fails to take account of the total instruction length. After this commit the calculation of the shift amount is split into two parts, first we calculate the shift required to get to BIT0 of the word in which the field lives, then we calculate the shift required to place the field within the instruction word. The change in this commit only effects the CGEN_INT_INSN_P defined true case, but changes the code for both CGEN_INSN_LSB0_P true, and false. In the case of CGEN_INSN_LSB0_P being false, the code used to say: shift = total_length - (word_offset + start + length); Now it says: shift_to_word = total_length - (word_offset + word_length); shift_within_word = word_length - start - length; shift = shift_to_word + shift_within_word; From which we can see that in all cases the computed shift value should be unchanged. In the case of CGEN_INSN_LSB0_P being true, the code used to say: shift = (word_offset + start + 1) - length; Now it says: shift_to_word = total_length - (word_offset + word_length); shift_within_word = start + 1 - length; shift = shift_to_word + shift_within_word; In the case where 'total_length == word_length' AND 'word_offset == 0' (which indicates an instruction of a single word), we see that the computed shift value will be unchanged. However, when the total_length and word_length are different, and the word_offset is non-zero then the computed shift value will be different (and correct). opcodes/ChangeLog: * cgen-ibld.in (insert_normal): Rework calculation of shift. * epiphany-ibld.c: Regenerate. * fr30-ibld.c: Regenerate. * frv-ibld.c: Regenerate. * ip2k-ibld.c: Regenerate. * iq2000-ibld.c: Regenerate. * lm32-ibld.c: Regenerate. * m32c-ibld.c: Regenerate. * m32r-ibld.c: Regenerate. * mep-ibld.c: Regenerate. * mt-ibld.c: Regenerate. * or1k-ibld.c: Regenerate. * xc16x-ibld.c: Regenerate. * xstormy16-ibld.c: Regenerate.
2016-01-01Copyright update for binutilsAlan Modra1-1/+1
2015-08-12Remove trailing spaces in opcodesH.J. Lu1-4/+4
2015-01-02ChangeLog rotatation and copyright year updateAlan Modra1-1/+1
2014-03-05Update copyright yearsAlan Modra1-2/+1
2010-01-07 * cgen-ibld.in (insert_normal, extract_normal): Minor cleanup.Doug Evans1-3/+3
* fr30-ibld.c, * frv-ibld.c, * ip2k-ibld.c, * iq2000-ibld.c, * lm32-ibld.c, * m32c-ibld.c, * m32r-ibld.c, * mep-ibld.c, * mt-ibld.c, * openrisc-ibld.c, * xc16x-ibld.c, * xstormy16-ibld.c: Regenerate.
2010-01-06 cpu/Doug Evans1-29/+30
* m32c.cpu (f-dsp-32-u24): Fix mode of extract handler. (f-dsp-40-u20, f-dsp-40-u24): Ditto. opcodes/ * cgen-ibld.in: #include "cgen/basic-modes.h". * fr30-ibld.c, * frv-ibld.c, * ip2k-ibld.c, * iq2000-ibld.c, * lm32-ibld.c, * m32c-ibld.c, * m32r-ibld.c, * mep-ibld.c, * mt-ibld.c, * openrisc-ibld.c, * xc16x-ibld.c, * xstormy16-ibld.c: Regenerate.
2010-01-02 * cgen-asm.in: Update copyright year.Doug Evans1-1/+1
* cgen-dis.in: Update copyright year. * cgen-ibld.in: Update copyright year. * fr30-asm.c, * fr30-desc.c, * fr30-desc.h, * fr30-dis.c, * fr30-ibld.c, * fr30-opc.c, * fr30-opc.h, * frv-asm.c, * frv-desc.c, * frv-desc.h, * frv-dis.c, * frv-ibld.c, * frv-opc.c, * frv-opc.h, * ip2k-asm.c, * ip2k-desc.c, * ip2k-desc.h, * ip2k-dis.c, * ip2k-ibld.c, * ip2k-opc.c, * ip2k-opc.h, * iq2000-asm.c, * iq2000-desc.c, * iq2000-desc.h, * iq2000-dis.c, * iq2000-ibld.c, * iq2000-opc.c, * iq2000-opc.h, * lm32-asm.c, * lm32-desc.c, * lm32-desc.h, * lm32-dis.c, * lm32-ibld.c, * lm32-opc.c, * lm32-opc.h, * lm32-opinst.c, * m32c-asm.c, * m32c-desc.c, * m32c-desc.h, * m32c-dis.c, * m32c-ibld.c, * m32c-opc.c, * m32c-opc.h, * m32r-asm.c, * m32r-desc.c, * m32r-desc.h, * m32r-dis.c, * m32r-ibld.c, * m32r-opc.c, * m32r-opc.h, * m32r-opinst.c, * mep-asm.c, * mep-desc.c, * mep-desc.h, * mep-dis.c, * mep-ibld.c, * mep-opc.c, * mep-opc.h, * mt-asm.c, * mt-desc.c, * mt-desc.h, * mt-dis.c, * mt-ibld.c, * mt-opc.c, * mt-opc.h, * openrisc-asm.c, * openrisc-desc.c, * openrisc-desc.h, * openrisc-dis.c, * openrisc-ibld.c, * openrisc-opc.c, * openrisc-opc.h, * xc16x-asm.c, * xc16x-desc.c, * xc16x-desc.h, * xc16x-dis.c, * xc16x-ibld.c, * xc16x-opc.c, * xc16x-opc.h, * xstormy16-asm.c, * xstormy16-desc.c, * xstormy16-desc.h, * xstormy16-dis.c, * xstormy16-ibld.c, * xstormy16-opc.c, * xstormy16-opc.h: Regenerate.
2009-06-24[cgen]DJ Delorie1-0/+322
* intrinsics.scm: Updates to support IVC2. (belongs-to-group?): Check IVC2 slots. (-slots-attribute): New. (targets::attributes): Add SLOTS. (target:add-well-known-intrinsics): Add CPMOV. (md-insn): Add CPTYPE and CRET?. (add-md-insn): Likewise. (add-intrinsic-for-isa): Disable the duplicate tests, as IVC2 has duplicate insns with different bit patterns. (write-cgen-insn?): Add cret? support. (intrinsics.h): Add vector types. (runtime-op): Add vector support. (intrinsic-protos.h): Let GCC define its types. Add cret? support. * cpu/mep-core.cpu: Add CPTYPE and CRET attributes. * cpu/mep-ivc2.cpu: Update all insns to include type information. (h-cr-ivc2): Default to typeless. (h-ccr-ivc2): Fix register width. (SLOTS): Fix values and default. (ivc2_*): Add control register names. (crop, crqp, crpp, croc, crqc, crpc): Default to typeless. [opcodes] * mep-desc.c: Regenerate. * mep-desc.h: Regenerate. * mep-dis.c: Regenerate. * mep-ibld.c: Regenerate. * mep-opc.c: Regenerate. [sid/component/cgen-cpu/mep] * ivc2-cop.cxx (ivc2_cphadd_w): Change to return value. (ivc2_cpsubaca0u_b): Remove debug line. * ivc2-cpu.h (ivc2_cpccadd_b): Change to return value. * mep-cop1-16-decode.cxx: Regenerate. * mep-cop1-16-sem.cxx: Regenerate. * mep-cop1-32-decode.cxx: Regenerate. * mep-cop1-32-sem.cxx: Regenerate. * mep-cop1-48-decode.cxx: Regenerate. * mep-cop1-48-sem.cxx: Regenerate. * mep-cop1-64-decode.cxx: Regenerate. * mep-cop1-64-sem.cxx: Regenerate. * mep-core1-decode.cxx: Regenerate. * mep-cpu.h: Regenerate. * mep-decode.cxx: Regenerate. * mep-desc.h: Regenerate.
2009-05-27[cgen/cpu]DJ Delorie1-11/+11
* cpu/mep-ivc2.cpu (h-ccr-ivc2): Enable for C3 slots, fix accumulator names. (f-ivc2-ccrn-c3hi): New. (f-ivc2-ccrn-c3lo): New. (f-ivc2-ccrn-c3): New. (ivc2c3ccrn): Use it. [sid/component/cgen-cpu/mep] * mep-cop1-32-decode.cxx: Regenerate. * mep-cop1-32-decode.h: Regenerate. * mep-cop1-32-sem.cxx: Regenerate. * mep-cop1-48-sem.cxx: Regenerate. [opcodes] * mep-asm.c: Regenerate. * mep-desc.c: Regenerate. * mep-desc.h: Regenerate. * mep-dis.c: Regenerate. * mep-ibld.c: Regenerate. * mep-opc.c: Regenerate. * mep-opc.h: Regenerate.
2009-05-22[cgen]DJ Delorie1-0/+53
* cpu/mep.opc (mep_examine_ivc2_insns): Fix bug in ivc2 decoder. (mep_config_map): Regenerate. * cpu/mep-ivc2.cpu (h-ccr-ivc2): Add generic names as well as ivc2-specific names. (simm8p20): New. (cmovc): move to after field definitions, use ivc2-specific register names. (cpmovi_b_P0S_P1): New. [utils/mep] * mepcfgtool.c (do_cgen_config_opc): Propagate endianness and VLIW size to default configuration. [sid/component/cgen-cpu/mep] * mep-cop1-16-decode.cxx: Regenerate. * mep-cop1-16-decode.h: Regenerate. * mep-cop1-16-model.cxx: Regenerate. * mep-cop1-16-model.h: Regenerate. * mep-cop1-16-sem.cxx: Regenerate. * mep-cop1-64-decode.cxx: Regenerate. * mep-cop1-64-decode.h: Regenerate. * mep-cop1-64-model.cxx: Regenerate. * mep-cop1-64-model.h: Regenerate. * mep-cop1-64-sem.cxx: Regenerate. [opcodes] * mep-asm.c: Regenerate. * mep-desc.c: Regenerate. * mep-desc.h: Regenerate. * mep-dis.c: Regenerate. * mep-ibld.c: Regenerate. * mep-opc.c: Regenerate. * mep-opc.h: Regenerate.
2009-04-30Index: opcodesDJ Delorie1-0/+738
* mep-asm.c: Regenerate. * mep-desc.c: Regenerate. * mep-desc.h: Regenerate. * mep-dis.c: Regenerate. * mep-ibld.c: Regenerate. * mep-opc.c: Regenerate. * mep-opc.h: Regenerate. Index: gas * config/tc-mep.c (md_begin): Check coprocessor type. (md_check_parallel64_scheduling): Use memset to initialize the buffer. (md_check_parallel32_scheduling): Likewise. (slot_ok): New. (mep_check_ivc2_scheduling): New. (mep_check_parallel_scheduling): Call it. (mep_process_saved_insns): Add IVC2 slot support. (md_assemble): Likewise.
2009-04-18[cgen]DJ Delorie1-18/+18
* cpu/mep-c5.cpu (f-12s20): Change to signed. (lhucpm1): Limit to C5 mach. (dsp0,dsp1): Rewrite as aliases so that intrinsics are generated. * cpu/mep-core.cpu (extend-cdisp10): New. (f-cdisp10): Change to signed, use extend-cdisp10 to sign extend. [opcodes] * mep-desc.c: Regenerate. * mep-ibld.c: Regenerate. * mep-opc.c: Regenerate. * mep-opc.h: Regenerate. [sid/component/cgen-cpu/mep] * mep-core1-decode.cxx: Regenerate. * mep-core1-decode.h: Regenerate. * mep-decode.cxx: Regenerate. * mep-decode.h: Regenerate.
2009-04-08[cgen]DJ Delorie1-60/+179
* cpu/mep-c5.cpu: New. * cpu/mep-core.cpu: Add C5 support. * cpu/mep.opc: Likewise. [opcodes] * mep-asm.c: Regenerate. * mep-desc.c: Regenerate. * mep-desc.h: Regenerate. * mep-dis.c: Regenerate. * mep-ibld.c: Regenerate. * mep-opc.c: Regenerate. * mep-opc.h: Regenerate. [sid] * component/cache/cache.cxx (cache_component::cache_component): Add write_hint_pin(). Attach it to write-hint. (cache_component::write_hint): New. * component/cache/cache.h (write_hint_pin): New. (write_hint): New. * component/cgen-cpu/mep/Makefile.am: Regenerate. * component/cgen-cpu/mep/Makefile.in: Regenerate. * component/cgen-cpu/mep/mep-core1-decode.cxx: Regenerate. * component/cgen-cpu/mep/mep-core1-decode.h: Regenerate. * component/cgen-cpu/mep/mep-core1-defs.h: Regenerate. * component/cgen-cpu/mep/mep-core1-model.cxx: Regenerate. * component/cgen-cpu/mep/mep-core1-model.h: Regenerate. * component/cgen-cpu/mep/mep-core1-sem.cxx: Regenerate. * component/cgen-cpu/mep/mep-decode.cxx: Regenerate. * component/cgen-cpu/mep/mep-decode.h: Regenerate. * component/cgen-cpu/mep/mep-defs.h: Regenerate. * component/cgen-cpu/mep/mep-desc.h: Regenerate. * component/cgen-cpu/mep/mep-model.cxx: Regenerate. * component/cgen-cpu/mep/mep-model.h: Regenerate. * component/cgen-cpu/mep/mep-sem.cxx: Regenerate. * component/cgen-cpu/mep/mep.cxx (mep_cpu): Connect write-hint pin. (do_cache): Add C5 support. (do_cache_prefetch): Likewise. (do_casb3, do_cash3, do_casw3): New. * component/cgen-cpu/mep/mep.h: Add C5 support and write-hint pin. (do_casb3, do_cash3, do_casw3): New. * component/families/mep/Makefile.in: Regenerate. * component/families/mep/dsu.in: Add C5 support. * main/dynamic/mainDynamic.cxx: Add C5 support. * main/dynamic/mepCfg.cxx: Connect write-hint pin. * main/dynamic/mepCfg.h: Add C5 support.
2009-02-03* elf32-mep.c (config_names): Regenerate configuration.DJ Delorie1-211/+0
* mep-asm.c: Regenerate. * mep-desc.c: Regenerate. * mep-desc.h: Regenerate. * mep-dis.c: Regenerate. * mep-ibld.c: Regenerate. * mep-opc.c: Regenerate. * mep-opc.h: Regenerate.
2009-01-20Regenerate for copyright date update.Alan Modra1-2/+2
2007-07-05Change source files over to GPLv3.Nick Clifton1-8/+8
2007-02-052007-02-05 Dave Brolley <brolley@redhat.com>Dave Brolley1-0/+2541
* mep-*: New support for Toshiba Media Processor (MeP). * Makefile.am: Add support for MeP. * configure.in: Likewise. * disassemble.c: Likewise. * Makefile.in: Regenerated. * configure: Regenerated.
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