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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 Evans1-3/+4
* 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.
2009-01-20Regenerate for copyright date update.Alan Modra1-2/+2
2007-07-05Change source files over to GPLv3.Nick Clifton1-8/+8
2006-03-05* cgen-ibld.in (insert_normal): Cope with attempts to insert a signed 32-bitNick Clifton1-8/+15
value into an unsigned 32-bit field when the host is a 64-bit machine.
2005-07-01Update function declarations to ISO C90 formattingNick Clifton1-78/+54
2005-05-07Update the address and phone number of the FSFNick Clifton1-1/+1
2003-12-03Add support for the M32R2 processor.Nick Clifton1-0/+36
2003-08-09regenerate cgen files after prototype fixMichael Meissner1-67/+69
2002-01-22[ include/opcode/ChangeLog ]Graydon Hoare1-4/+2
2002-01-22 Graydon Hoare <graydon@redhat.com> * cgen.h (CGEN_MAYBE_MULTI_IFLD): New structure. (CGEN_OPERAND): Add CGEN_MAYBE_MULTI_IFLD field. [ opcodes/ChangeLog ] 2002-01-22 Graydon Hoare <graydon@redhat.com> * fr30-asm.c: Regenerate. * fr30-desc.c: Likewise. * fr30-desc.h: Likewise. * fr30-dis.c: Likewise. * fr30-ibld.c: Likewise. * fr30-opc.c: Likewise. * fr30-opc.h: Likewise. * m32r-asm.c: Likewise. * m32r-desc.c: Likewise. * m32r-desc.h: Likewise. * m32r-dis.c: Likewise. * m32r-ibld.c: Likewise. * m32r-opc.c: Likewise. * m32r-opc.h: Likewise. * m32r-opinst.c: Likewise. * openrisc-asm.c: Likewise. * openrisc-desc.c: Likewise. * openrisc-desc.h: Likewise. * openrisc-dis.c: Likewise. * openrisc-ibld.c: Likewise. * openrisc-opc.c: Likewise. * openrisc-opc.h: Likewise. * xstormy16-desc.c: Likewise. [ cgen/ChangeLog ] 2002-01-22 Graydon Hoare <graydon@redhat.com> * desc-cpu.scm (ifld-number-cache): Add. (ifld-number): Add. (gen-maybe-multi-ifld-of-op): Add. (gen-maybe-multi-ifld): Add. (gen-multi-ifield-nodes): Add. (cgen-desc.c): Add call to gen-multi-ifield-nodes.
2001-11-09Fix badly placed #if 0...Nick Clifton1-2/+2
2001-10-13Use safe-ctype.h not ctype.hNick Clifton1-1/+1
2001-10-09Fix compile time warnings in cgen-generated filesNick Clifton1-25/+43
2001-09-20Fix compile time warningsNick Clifton1-5/+16
2001-09-19Locale changes from Bruno Haible <haible@clisp.cons.org>.H.J. Lu1-1/+0
2001-08-12 * cgen-ibld.in (extract_normal): Match type of VALUE and MASKRichard Henderson1-4/+19
to *VALUEP. Regenerate all cgen files.
2001-05-04* m32r disasm bug fixFrank Ch. Eigler1-5/+5
2001-05-04 Frank Ch. Eigler <fche@redhat.com> * m32r-dis.c, -asm.c, -ibld.c: Regenerated with disassembler fixes. 2001-05-04 Frank Ch. Eigler <fche@redhat.com> * cgen-dis.in (print_insn): Remove call to read_insn. Instead, assume incoming buffer already has the base insn loaded. Handle case of smaller-than-base instructions for variable-length case.
2001-03-13Fix typos in ChangeLogs; fix dates in copyright noticesNick Clifton1-1/+1
2001-03-052001-03-05 Dave Brolley <brolley@redhat.coDave Brolley1-107/+19
* opcodes/fr30-asm.c: Regenerate. * opcodes/fr30-desc.c: Regenerate. * opcodes/fr30-desc.h: Regenerate. * opcodes/fr30-dis.c: Regenerate. * opcodes/fr30-ibld.c: Regenerate. * opcodes/fr30-opc.c: Regenerate. * opcodes/fr30-opc.h: Regenerate. * opcodes/m32r-asm.c: Regenerate. * opcodes/m32r-desc.c: Regenerate. * opcodes/m32r-desc.h: Regenerate. * opcodes/m32r-dis.c: Regenerate. * opcodes/m32r-ibld.c: Regenerate. * opcodes/m32r-opc.c: Regenerate. * opcodes/m32r-opc.h: Regenerate. * opcodes/m32r-opinst.c: Regenerate.
2000-10-062000-10-06 Dave Brolley <brolley@redhat.com>Dave Brolley1-5/+5
* fr30-desc.h: Regenerate. * m32r-desc.h: Regenerate. * m32r-ibld.c: Regenerate.
2000-08-282000-08-28 Dave Brolley <brolley@redhat.com>Dave Brolley1-6/+46
* cgen-ibld.in (cgen_put_insn_int_value): New function. (insert_normal): Allow for non-zero word_offset with CGEN_INT_INSN_P. (insert_insn_normal): Use cgen_put_insn_int_value with CGEN_INT_INSN_P. (extract_normal): Allow for non-zero word_offset with CGEN_INT_INSN_P. * cgen-dis.in (read_insn): New static function. (print_insn): Use read_insn to read the insn into the buffer and set up for disassembly. (print_insn): in CGEN_INT_INSN_P, make sure that the entire insn is in the buffer. * fr30-asm.c: Regenerated. * fr30-desc.c: Regenerated. * fr30-desc.h Regenerated. * fr30-dis.c: Regenerated. * fr30-ibld.c: Regenerated. * fr30-opc.c: Regenerated. * fr30-opc.h Regenerated. * m32r-asm.c: Regenerated. * m32r-desc.c: Regenerated. * m32r-desc.h Regenerated. * m32r-dis.c: Regenerated. * m32r-ibld.c: Regenerated. * m32r-opc.c: Regenerated.
2000-02-242000-02-23 Andrew Haley <aph@cygnus.com>Andrew Haley1-9/+14
* m32r-asm.c, m32r-desc.c, m32r-desc.h, m32r-dis.c, m32r-ibld.c,m32r-opc.h: Rebuild.
1999-10-05 * fr30-asm.c,fr30-desc.h: Rebuild.Doug Evans1-0/+81
* m32r-asm.c,m32r-desc.c,m32r-desc.h: Rebuild. Add m32rx support. * m32r-dis.c,m32r-ibld.c,m32r-opc.c,m32r-opc.h,m32r-opinst.c: Ditto.
1999-08-29 * fr30-asm.c,fr30-desc.h,fr30-dis.c,fr30-ibld.c,fr30-opc.c: Rebuild.Doug Evans1-8/+7
* m32r-asm.c,m32r-desc.h,m32r-dis.c,m32r-ibld.c,m32r-opc.c: Rebuild. * m32r-opinst.c: Rebuild.
1999-05-0319990502 sourceware importbinu_ss_19990502Richard Henderson1-0/+1120
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