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openocd: added opcode parser

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Added opcode parser of the F.E.H.L.E.R-project for analysis of
memory access in mmu-abort handling, tracing, etc.

Change-Id: I5912fa4a4d51ee0501817c43bae05e87ac0e9b90
This commit is contained in:
Lars Rademacher
2013-11-07 13:42:05 +01:00
parent 146984f2fc
commit c086800e58
11 changed files with 2422 additions and 64 deletions
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82
debuggers/openocd/opcode_parser/arm-condition.c Normal file
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/*
* FAME - Fault Aware Micro-hypervisor Environment
*
* Author: Andreas Heinig <andreas.heinig@gmx.de>
*
* Copyright (C) 2011,2012 Department of Computer Science,
* Design Automation of Embedded Systems Group
* Dortmund University of Technology
*
* This program is proprietary software: you must not redistribute it.
* Using this software is only allowed inside the DFG SPP1500 F.E.H.L.E.R project,
* ls12-www.cs.tu-dortmund.de/daes/forschung/dependable-embedded-real-time-systems
*
* The complete license is depicted in the LICENSE file in the top level folder.
*/
#include <stdio.h>
#include "arm-opcode.h"
typedef enum {C_EQ = 0x0, C_NE = 0x1, C_CS = 0x2, C_CC = 0x3,
C_MI = 0x4, C_PL = 0x5, C_VS = 0x6, C_VC = 0x7,
C_HI = 0x8, C_LS = 0x9, C_GE = 0xA, C_LT = 0xB,
C_GT = 0xC, C_LE = 0xD, C_AL = 0xE, C_NV = 0xF
}condition_t;
#define V_FLAG 0x10000000
#define C_FLAG 0x20000000
#define Z_FLAG 0x40000000
#define N_FLAG 0x80000000
#define CZ_FLAGS 0x60000000
#define NV_FLAGS 0x90000000
uint32_t op_cond_test(uint32_t inst, uint32_t cpsr)
{
condition_t cond = (condition_t) (inst >> 28);
switch (cond)
{
case C_EQ:
return ( (cpsr & Z_FLAG));
case C_NE:
return (!(cpsr & Z_FLAG));
case C_CS:
return ( (cpsr & C_FLAG));
case C_CC:
return (!(cpsr & C_FLAG));
case C_MI:
return ( (cpsr & N_FLAG));
case C_PL:
return (!(cpsr & N_FLAG));
case C_VS:
return ( (cpsr & V_FLAG));
case C_VC:
return (!(cpsr & V_FLAG));
case C_HI:
return ((cpsr & CZ_FLAGS) == C_FLAG);
case C_LS:
return ((cpsr & C_FLAG) == 0) ||
((cpsr & Z_FLAG) == Z_FLAG);
case C_GE:
return (((cpsr & NV_FLAGS) == 0) ||
((cpsr & NV_FLAGS) == NV_FLAGS));
case C_LT:
return (((cpsr & NV_FLAGS) == V_FLAG) ||
((cpsr & NV_FLAGS) == N_FLAG));
case C_GT:
return (((cpsr & Z_FLAG) == 0) &&
(((cpsr & NV_FLAGS) == NV_FLAGS) ||
((cpsr & NV_FLAGS) == 0)));
case C_LE:
return (((cpsr & Z_FLAG) == Z_FLAG) ||
(((cpsr & NV_FLAGS) == V_FLAG) ||
((cpsr & NV_FLAGS) == N_FLAG)));
case C_AL:
return 1;
case C_NV:
default:
return 0xFFFFFFFF;
}
return 0;
}