Also decode immediate values to some extent
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53e6e6690f
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c0a0820fe4
@ -32,6 +32,8 @@ static int _i386_write(ArchPlugin * plugin, ArchInstruction * instruction,
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/* i386_decode */
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static int _decode_dregister(ArchPlugin * plugin, ArchInstructionCall * call,
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size_t i);
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static int _decode_immediate(ArchPlugin * plugin, ArchInstructionCall * call,
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size_t i);
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static int _decode_operand(ArchPlugin * plugin, ArchInstructionCall * call,
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size_t i);
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static int _decode_register(ArchPlugin * plugin, ArchInstructionCall * call,
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@ -92,6 +94,28 @@ static int _decode_dregister(ArchPlugin * plugin, ArchInstructionCall * call,
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return 0;
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}
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static int _decode_immediate(ArchPlugin * plugin, ArchInstructionCall * call,
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size_t i)
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{
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ArchPluginHelper * helper = plugin->helper;
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ArchOperandDefinition aod = call->operands[i].type;
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uint8_t u8;
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/* FIXME implement more sizes */
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switch(AO_GET_SIZE(aod) >> 3)
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{
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case sizeof(u8):
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break;
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default:
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return -error_set_code(1, "%s", strerror(ENOSYS));
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}
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if(helper->read(helper->arch, &u8, sizeof(u8)) != sizeof(u8))
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return -1;
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call->operands[i].value.immediate.value = u8;
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call->operands[i].value.immediate.negative = 0;
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return 0;
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}
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static int _decode_operand(ArchPlugin * plugin, ArchInstructionCall * call,
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size_t i)
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{
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@ -100,6 +124,8 @@ static int _decode_operand(ArchPlugin * plugin, ArchInstructionCall * call,
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/* FIXME implement the rest */
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case AOT_DREGISTER:
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return _decode_dregister(plugin, call, i);
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case AOT_IMMEDIATE:
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return _decode_immediate(plugin, call, i);
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case AOT_REGISTER:
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return _decode_register(plugin, call, i);
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}
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