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* ARM: bugfix for "movt" disassemblyDavid Brownell2010-01-121-1/+1
| | | | | | | Use the correct bitfield to specify the register whose top halfword gets replaced. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: disassemble STM correctlyDavid Brownell2009-12-141-2/+5
| | | | | | There is no "STMMIDA" instruction. There is however "STMDAMI". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: disassembly fixes for LDC/STC/MRRC/MCRRDavid Brownell2009-12-111-18/+33
| | | | | | | Properly detect all of these, including the "2" variants; and bugfix parameter display for LDC and STC. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: cygwin complile fixesDavid Brownell2009-12-081-4/+6
| | | | | | | It's as if despite integers being 32-bits, GCC refuses to convert a "uint32_t" to one of them. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: cope with stupidheaded compilerDavid Brownell2009-12-071-2/+1
| | | | | | | | Some versions of GCC don't understand that if you mask with 0x3 then have cases 0-3, it's not possible for a variable assigned in all those branches to have no value at end-of-case. Feh. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: disassemble two more v6+ instructionsDavid Brownell2009-12-071-12/+71
| | | | | | | | | | | The SRS and RFE instructions speed exception entry/exit by making it easy to save and restore PC and SPSR. This handles both ARM and Thumb2 encodings. Fix minor PLD goofage; that "should never reach this point" can't happen, so remove it. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* change #include "log.h" to <helper/log.h>Zachary T Welch2009-12-031-1/+1
| | | | | | | | | | | | Changes from the flat namespace to heirarchical one. Instead of writing: #include "log.h" the following form should be used. #include <helper/log.h> The exception is from .c files in the same directory.
* ARM: standard disassembler uses Thumb2 entryDavid Brownell2009-11-161-2/+6
| | | | | | | | | | | | | | | | | Tweak "standard" ARM disassembler diagnostics to fail if the target is not "an ARM" (vs. not "an ARMV4/5"), so it makes more sense for cores inheriting this as the "generic" disassembler. Also, to use the Thumb2 entry instead of the original Thumb entry. This makes it work better for both newer cores (which support those added instructions) and for BL and BLX instructions on older cores. (Those instructions are 32-bits, which requires curious state-aware code to go through a 16-bit decode interface...) Plus minor cleanups, notably to have fewer exit paths and to make sure they all return failure codes. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target_t -> struct targetZachary T Welch2009-11-131-1/+1
| | | | Remove misleading typedef and redundant suffix from struct target.
* arm_instruction_t -> struct arm_instructionZachary T Welch2009-11-131-58/+58
| | | | Remove misleading typedef and redundant suffix from struct arm_instruction.
* ARM: fix target address when disassembling Thumb BLXNicolas Pitre2009-10-271-0/+1
| | | | | | | | A Thumb BLX instruction is branching to ARM code, and therefore the first 2 bits of the target address must be cleared. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* fix detection of PLD instructionsLennert Buytenhek2009-10-131-1/+1
| | | | | Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* David Brownell <david-b@pacbell.net> oharboe2009-09-081-35/+137
| | | | | | | | | | | | | | | | | | | | | lean up some loose ends with the ARM disassembler - Add a header comment describing its current state and uses and referencing the now-generally-available V7 arch spec - Support some mode switch instructions: * Thumb to Jazelle (BXJ) * Thumb to ThumbEE (ENTERX) * ThumbEE to Thumb (LEAVEX) - Improve that recent warning fix (and associated whitespace goof) - Declare the rest of the internal code and data "static". A compiler may use this, and it helps clarify the scope of these routines (e.g. what changes to them could affect). git-svn-id: svn://svn.berlios.de/openocd/trunk@2675 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Warning fixduane2009-08-311-0/+3
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2658 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> ARM disassembly support for about five ↵oharboe2009-08-281-6/+345
| | | | | | | | | | | | | | | | | | dozen non-Thumb instructions that were added after ARMv5TE was defined: - ARMv5J "BXJ" (for Java/Jazelle) - ARMv6 "media" instructions (for OMAP2420, i.MX31, etc) Compile-tested. This might not set up the simulator right for the ARMv6 single step support; only BXJ branches though, and docs to support Jazelle branching are non-public (still, sigh). ARMv6 instructions known to be mis-handled by this disassembler include: UMAAL, LDREX, STREX, CPS, SETEND, RFE, SRS, MCRR2, MRRC2 git-svn-id: svn://svn.berlios.de/openocd/trunk@2644 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>More Thumb2 disassembly:oharboe2009-08-201-2/+136
| | | | | | | | | | | | | | | ARMv7-M: A5.3.6 Load/store dual or exclusive, table branch GCC will generate the table branch instructions, usually with inlined tables that will confuse this disassembler. LDREX and STREX are not issued by GCC without inline assembly. This means all Thumb2 instructions implemented by Cortex-M3 can now be disassembled. Cortex-A8 cores support more Thumb2 instructions, but most of those aren't yet publicly documented. git-svn-id: svn://svn.berlios.de/openocd/trunk@2598 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Ferdinand Postema <ferdinand@postema.eu> cygwin 32 bit warningoharboe2009-08-161-1/+1
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2581 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> More testcase work:oharboe2009-07-261-7/+16
| | | | | | | | | | | | | | | | A5.3.11 Data processing (shifted register) The usual kinds of problems; the most noteworthy were that the "S"et flags bit was mis-handled in these instructions. --- This is the last patch from a quickie set of tests covering all encodings of the instructions with 32-bit opcodes. There may be some corner cases left, plus the instructions that aren't yet handled, but the Thumb2 disassembler is no longer just "lightly" tested with GCC output ... the new code paths have mostly been verified. git-svn-id: svn://svn.berlios.de/openocd/trunk@2568 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* More instruction decoding fixes:oharboe2009-07-261-16/+32
| | | | | | | | | | | A5.3.5 Load/store multiple A5.3.7 Load word There was a longstanding bug in Thumb-1 LDM; the rest of the LDM/STM fixes are just using width specs to match UAL syntax, except for two opcode name typos. Load word had two bitmask goofs. git-svn-id: svn://svn.berlios.de/openocd/trunk@2567 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> More fixes from test cases:oharboe2009-07-261-7/+11
| | | | | | | | | | A5.3.8 Load halfword, unallocated memory hints It's mostly the usual sort of bitmasking goofage and getting the width specs right. In one case an older x86 GCC generated bad code unless I structred a conditional differently (sigh). git-svn-id: svn://svn.berlios.de/openocd/trunk@2566 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> More instruction decoding fixes:oharboe2009-07-261-8/+12
| | | | | | | | | | | A5.3.5 Load/store multiple A5.3.7 Load word There was a longstanding bug in Thumb-1 LDM; the rest of the LDM/STM fixes are just using width specs to match UAL syntax, except for two opcode name typos. Load word had two bitmask goofs. git-svn-id: svn://svn.berlios.de/openocd/trunk@2565 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> More instruction decoding fixes based ↵oharboe2009-07-241-9/+10
| | | | | | | | | | | | | | | | on test cases, covering ARMv7-M arch manual: A5.3.1 Data processing (modified immediate) A5.3.3 Data processing (plain binary immediate) A5.3.4 Branches and miscellaneous control and other (immediate) encodings referenced there. Several of these just tweak the new syntax ("Unified" ARM/Thumb: UAL) but there were a few bugs too. git-svn-id: svn://svn.berlios.de/openocd/trunk@2564 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> Bugfix some instruction decoding ... ↵oharboe2009-07-241-4/+4
| | | | | | | | | | | | | | | | | I've crafted asm files with testcases covering several new encodings in these sections of the ARMv7-M arch manual: A5.3.12 Data processing (register) A5.3.13 Miscellaneous operations A5.3.14 Multiply, and multiply accumulate A5.3.15 Long multiply, long multiply accumulate, and divide The issues were mostly in '12 and '13; some new related 16-bit opcodes had issues too. git-svn-id: svn://svn.berlios.de/openocd/trunk@2563 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Andreas Fritiofson <andreas.fritiofson@gmail.com> I noticed there are a few ↵oharboe2009-07-241-10/+5
| | | | | | | | | checks for (rt == 0xf) even though that case is handled with an early return at the top of the function. git-svn-id: svn://svn.berlios.de/openocd/trunk@2562 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> thumb2 disassembly for Load halfwordoharboe2009-07-231-1/+86
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2561 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> thumb2 disassembly for Load byte, ↵oharboe2009-07-231-0/+170
| | | | | | memory hints git-svn-id: svn://svn.berlios.de/openocd/trunk@2560 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net> fix warningsoharboe2009-07-231-44/+50
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2558 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:ntfreak2009-07-211-11/+18
| | | | | | | | | | | | | | | Minor updates to the Thumb2 disassembly: - Bugfixes: * Distinguish branch from misc via "!=" not "==" * MRS register shift is 8 bits (vs MSR being 16) - Format tweaks: * CPS needed tab (not space) * add commma before some shifts * add space after comma in LDM/STM * use ".W" width spec on various instructions git-svn-id: svn://svn.berlios.de/openocd/trunk@2553 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-0/+78
| | | | | | | | | More 32-bit Thumb2 instruction decoding: A5.3.7 Load word git-svn-id: svn://svn.berlios.de/openocd/trunk@2542 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-0/+105
| | | | | | | | | More 32-bit Thumb2 instruction decoding: A5.3.12 Data processing (register) git-svn-id: svn://svn.berlios.de/openocd/trunk@2541 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-0/+168
| | | | | | | | | More 32-bit instruction decoding: A5.3.11 Data processing (shifted register) git-svn-id: svn://svn.berlios.de/openocd/trunk@2540 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-0/+53
| | | | | | | | | | | More instructions decoded: A5.3.5 Load/store multiple The preferred PUSH/POP syntax is shown when appropriate. git-svn-id: svn://svn.berlios.de/openocd/trunk@2539 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-0/+73
| | | | | | | | | | | | | More instructions decoded: A5.3.14 Multiply, and multiply accumulate A5.3.15 Long multiply, long multiply accumulate, divide The EABI requires *adjacent* register pairs, but the long multiply ops can use any pair of registers; interesting. git-svn-id: svn://svn.berlios.de/openocd/trunk@2538 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-0/+96
| | | | | | | | | | | | | More Thumb2 32-bit opcode support: A5.3.10 Store single data item Byte, word, halfword. Offset, pre-index, post-index. And a "make like you're unprivileged" option when using small immediate offsets. git-svn-id: svn://svn.berlios.de/openocd/trunk@2537 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-3/+12
| | | | | | | | Print old-style Thumb NOP instructions as such. (GCC uses "mov r8, r8" instead of the architected NOP which is new in Thumb2.) git-svn-id: svn://svn.berlios.de/openocd/trunk@2536 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-7/+15
| | | | | | | | | Make disassembly of the Thumb load-literal instruction show the address of the literal being loaded (so users can avoid doing that math themselves). Add and use an Align(PC,4) utility. git-svn-id: svn://svn.berlios.de/openocd/trunk@2535 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-0/+99
| | | | | | | | | | | | Make the Thumb2 disassembler handle more 32-bit instructions: A5.3.3 Data processing (plain binary immediate) These use mostly twelve bit literals, but there are also bitfield and saturated add primitives. git-svn-id: svn://svn.berlios.de/openocd/trunk@2534 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-1/+143
| | | | | | | | | | | Make the Thumb2 disassembler handle more 32-bit instructions: A5.3.1 Data processing (modified immediate) My small sample shows GCC likes to use many of these instructions. git-svn-id: svn://svn.berlios.de/openocd/trunk@2533 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-4/+263
| | | | | | | | | | | | | | | | | Make the Thumb2 disassembler handle a bunch of 32-bit instructions: A5.3.4 Branches and miscellaneous control Note that this shifts some responsabililty out of helper functions, making the code and layout simpler for 32-bit decoders: they only need to know how to format the instruction and its parameters. Also, technical note: with this patch, Thumb1 decoders could now call the Thumb2 decoder if they wanted to get nicer treatment of the exiting 32-bit B/BLX instructions. git-svn-id: svn://svn.berlios.de/openocd/trunk@2532 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-37/+77
| | | | | | | | | | | | | | | | | | | | | | | Change layout of Thumb disassembly to work better with Thumb2: - Move opcode to the left, allowing space for four hex bytes: * after address, two spaces not one tab (taking 6 spaces) * after 2-byte opcode, four spaces before tab - Also, after opcode mnemonic use a tab not a space, to make operands line up Sample output (after some patches decoding a few 32-bit instructions): 0x00003e5a 0xf4423200 ORR r2, r2, #131072 ; 0x20000 0x00003e5e 0x601a STR r2, [r3, #0x0] 0x00003e60 0x2800 CMP r0, #0x00 0x00003e62 0xd1f3 BNE 0x00003e4c 0x00003e64 0xf008fa38 BL 0x0000c2d8 The affected lines of code now wrap at sane margins too. git-svn-id: svn://svn.berlios.de/openocd/trunk@2531 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* David Brownell <david-b@pacbell.net>:zwelch2009-07-151-15/+239
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initial support for disassembling Thumb2 code. This works only for Cortex-M3 cores so far. Eventually other cores will also need Thumb2 support ... but they don't yet support any kind of disassembly. - Update the 16-bit Thumb decoder: * Understand CPS, REV*, SETEND, {U,S}XT{B,H} opcodes added by ARMv6. (It already seems to treat CPY as MOV.) * Understand CB, CBNZ, WFI, IT, and other opcodes added by in Thumb2. - A new Thumb2 instruction decode routine is provided. * This has a different signature: pass the target, not the instruction, so it can fetch a second halfword when needed. The instruction size is likewise returned to the caller. * 32-bit instructions are recognized but not yet decoded. - Start using the current "UAL" syntax in some cases. "SWI" is renamed as "SVC"; "LDMIA" as "LDM"; "STMIA" as "STM". - Define a new "cortex_m3 disassemble addr count" command to give access to this disassembly. Sanity checked against "objdump -d" output; a bunch of the new instructions checked out fine. git-svn-id: svn://svn.berlios.de/openocd/trunk@2530 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Remove whitespace at end of lines, step 1.zwelch2009-06-231-195/+195
| | | | | | | - Replace '\s*$' with ''. git-svn-id: svn://svn.berlios.de/openocd/trunk@2379 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Remove whitespace that occurs before ')'.zwelch2009-06-231-3/+3
| | | | | | | - Replace '[ \t]*[)]' with ')'. git-svn-id: svn://svn.berlios.de/openocd/trunk@2377 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* - Fixes '[<>]' whitespacezwelch2009-06-231-6/+6
| | | | | | | | | | - Replace ')\([<>]\)(' with ') \1 ('. - Replace ')\([<>]\)\(\w\)' with ') \1 \2'. - Replace '\(\w\)\([<>]\)(' with '\1 \2 ('. - Replace '\(\w\)\([<>]\)\(\w\)' with '\1 \2 \3'. git-svn-id: svn://svn.berlios.de/openocd/trunk@2375 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* - Fixes '==' whitespacezwelch2009-06-231-4/+4
| | | | | | | | - Replace ')\(==\)\(\w\)' with ') \1 \2'. - Replace '\(\w\)\(==\)\(\w\)' with '\1 \2 \3'. git-svn-id: svn://svn.berlios.de/openocd/trunk@2371 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* - Fixes '<<' whitespacezwelch2009-06-231-17/+17
| | | | | | | | | - Replace ')\(<<\)\(\w\)' with ') \1 \2'. - Replace '\(\w\)\(<<\)(' with '\1 \2 ('. - Replace '\(\w\)\(<<\)\(\w\)' with '\1 \2 \3'. git-svn-id: svn://svn.berlios.de/openocd/trunk@2370 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* - Fixes '!=' whitespacezwelch2009-06-231-1/+1
| | | | | | | | | - Replace ')\(!=\)\(\w\)' with ') \1 \2'. - Replace '\(\w\)\(!=\)(' with '\1 \2 ('. - Replace '\(\w\)\(!=\)\(\w\)' with '\1 \2 \3'. git-svn-id: svn://svn.berlios.de/openocd/trunk@2363 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* - Replace 'switch(' with 'switch ('.zwelch2009-06-231-4/+4
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2359 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* C99 printf() -Werror fixesduane2009-06-211-65/+65
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2308 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Transform 'u32' to 'uint32_t' in src/target/arm*zwelch2009-06-181-61/+61
| | | | | | | | - Replace '\([^_]\)u32' with '\1uint32_t'. - Replace '^u32' with 'uint32_t'. git-svn-id: svn://svn.berlios.de/openocd/trunk@2278 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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