Encoding instructions for integer operations as well
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33039927e3
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@ -63,6 +63,8 @@ ArchPlugin arch_plugin =
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/* functions */
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/* plug-in */
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/* sparc_write */
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static int _write_integer(ArchPlugin * plugin, ArchInstruction * instruction,
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ArchInstructionCall * call, uint32_t * opcode);
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static int _write_loadstore(ArchPlugin * plugin, ArchInstruction * instruction,
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ArchInstructionCall * call, uint32_t * opcode);
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static int _write_sethi(ArchPlugin * plugin, ArchInstruction * instruction,
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@ -79,6 +81,9 @@ static int _sparc_write(ArchPlugin * plugin, ArchInstruction * instruction,
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else if((opcode & 0x01000000) == 0x01000000 && _write_sethi(plugin,
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instruction, call, &opcode) != 0)
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return -1;
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else if((opcode & 0xc0000000) == 0x80000000 && _write_integer(plugin,
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instruction, call, &opcode) != 0)
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return -1;
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/* FIXME implement the rest */
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opcode = _htob32(opcode);
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if(fwrite(&opcode, sizeof(opcode), 1, plugin->helper->fp) != 1)
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@ -86,6 +91,55 @@ static int _sparc_write(ArchPlugin * plugin, ArchInstruction * instruction,
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return 0;
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}
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static int _write_integer(ArchPlugin * plugin, ArchInstruction * instruction,
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ArchInstructionCall * call, uint32_t * opcode)
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{
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ArchPluginHelper * helper = plugin->helper;
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uint32_t rd;
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uint32_t rs1;
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uint32_t rs2;
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char const * name;
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ArchRegister * ar;
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/* rs1 */
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if(AO_GET_TYPE(instruction->op1) != AOT_REGISTER)
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return -1;
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name = call->operands[0].value._register.name;
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if((ar = helper->get_register_by_name_size(helper->arch,
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name, 32)) == NULL)
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return -1;
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rs1 = (ar->id << 14);
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/* rs2 */
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if(AO_GET_TYPE(instruction->op2) == AOT_REGISTER)
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{
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name = call->operands[1].value._register.name;
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if((ar = helper->get_register_by_name_size(helper->arch,
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name, 32)) == NULL)
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return -1;
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rs2 = ar->id;
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}
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else if(AO_GET_TYPE(instruction->op2) == AOT_IMMEDIATE)
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{
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rs2 = call->operands[1].value.immediate.value;
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if(call->operands[1].value.immediate.negative)
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rs2 = -rs2;
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rs2 &= 0x00001fff;
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rs2 |= (1 << 13);
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}
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else
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return -1;
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/* rd */
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if(AO_GET_TYPE(instruction->op3) != AOT_REGISTER)
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return -1;
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name = call->operands[2].value._register.name;
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if((ar = helper->get_register_by_name_size(helper->arch,
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name, 32)) == NULL)
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return -1;
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rd = (ar->id << 25);
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*opcode |= (rd | rs1 | rs2);
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return 0;
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}
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static int _write_loadstore(ArchPlugin * plugin, ArchInstruction * instruction,
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ArchInstructionCall * call, uint32_t * opcode)
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{
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