Commit Graph

219 Commits

Author SHA1 Message Date
Johnny Chen 7eaacc517b Add some helper methods to the EmulateInstructionARM class as a first step in the
refactorings of EmulateInstructionARM.cpp file, which will be modified later to
take advantage of these helper methods.

llvm-svn: 125148
2011-02-09 01:00:31 +00:00
Caroline Tice 123b89b67f Add code to emulate the LDMIB Arm instruction.
Modify code for LDM and LDMDB instructions to only
create one context and to reuse it, rather than 
creating multiple contexts.

llvm-svn: 125139
2011-02-08 23:56:10 +00:00
Johnny Chen 108a363318 Fix typos.
llvm-svn: 125138
2011-02-08 23:49:37 +00:00
Johnny Chen 03feace9d0 Add EmulateCB() entry to the g_thumb_opcodes table to represent "Compare and Branch
on NonZero and Compare and Branch on Zero" operations.

llvm-svn: 125134
2011-02-08 23:21:57 +00:00
Caroline Tice cdb58e1236 Add code to emulate LDMDB Arm instruction.
llvm-svn: 125133
2011-02-08 23:16:02 +00:00
Caroline Tice 7aa01cfd64 Add code to emulate the LDM ARM instruction.
llvm-svn: 125118
2011-02-08 22:24:38 +00:00
Johnny Chen 181376f29f Add missing implementation for "BL, BLX (immediate)" Encoding T1 and an entry for "bl <label>"
into g_thumb_opcodes table.

llvm-svn: 125112
2011-02-08 20:36:34 +00:00
Johnny Chen 86e48b6940 Add missing implementation for "BL, BLX (immediate)" Encoding A1.
llvm-svn: 125103
2011-02-08 18:58:31 +00:00
Johnny Chen a3990398a3 Add implementation for EmulateInstructionARM::EmulateB() and fixed two typos in g_thumb_opcodes
as pointed out By Caroline.  Refactored a little bit by adding two new helper methods to the
EmulateInstructionARM class:

o BranchWritePC()
o BXWritePC()

llvm-svn: 125059
2011-02-08 00:06:35 +00:00
Johnny Chen 05a975d777 Add EmulateInstructionARM::EmulateB entries to the g_arm_opcodes and g_thumb_opcodes
tables.  EmulateB() has empty impl. and needs to be filled in later.

llvm-svn: 125048
2011-02-07 20:11:47 +00:00
Johnny Chen 56902044a7 Handle the thumb branch instructions which have their cond bits embedded in the instruction stream.
llvm-svn: 124925
2011-02-05 01:39:52 +00:00
Johnny Chen 6e2acff0be Add EmulateInstructionARM::EmulateIT() to the g_thumb_opcodes table,
to represent the the 'If Then' instruction which makes up to four following
instructions (the IT block)conditional.

Hook up ITSession utility class as a member variable of EmulateInstructionARM.

llvm-svn: 124915
2011-02-05 00:46:10 +00:00
Johnny Chen ea745e86c8 Add a utility class ITSession to maintain the ITState for the Thumb ISA.
llvm-svn: 124906
2011-02-04 23:02:47 +00:00
Johnny Chen b52193787d Add EmulateInstructionARM::EmulateSVC() to the g_arm_opcodes and g_thumb_opcodes tables,
to represent the supervisor call instruction (previosuly software interrupt).

llvm-svn: 124840
2011-02-04 00:40:18 +00:00
Johnny Chen d07a57f222 Add EmulateBLXImmediate() and EmulateBLXRm() to the g_arm_opcodes and g_thumb_opcodes tables,
which represent "bl <label>", "blx <label>", and "blx <Rm>" instructions.

llvm-svn: 124710
2011-02-02 01:13:56 +00:00
Johnny Chen 2684ccccda Remove the 'lldb_private::' namespace resolution operator.
llvm-svn: 124671
2011-02-01 18:51:48 +00:00
Johnny Chen 3d9011d6dd Add EmulateVPOP() to the g_arm_opcodes and g_thumb_opcodes tables, which represents
an operation to load multiple extension registers from the stack.

llvm-svn: 124670
2011-02-01 18:35:28 +00:00
Greg Clayton c46f94d490 Cleaned up the EmulateInstructionARM to have the evaluate instruction
callbacks use member functions.

llvm-svn: 124636
2011-02-01 00:49:32 +00:00
Greg Clayton c1dfd93e1e Made the EmulateInstruction class into a plug-in interface and moved the
source files around into the places they need to go.

llvm-svn: 124631
2011-02-01 00:04:43 +00:00