decoder.isa (8564:f81bcb16fa1b) decoder.isa (8568:83f728db3332)
1// -*- mode:c++ -*-
2
3// Copyright (c) 2007 MIPS Technologies, Inc.
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright

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209 0x4: decode HINT {
210 0x0: decode FUNCTION_LO {
211 format IntOp {
212 0x0: add({{
213 IntReg result;
214 Rd = result = Rs + Rt;
215 if (FULL_SYSTEM &&
216 findOverflow(32, result, Rs, Rt)) {
1// -*- mode:c++ -*-
2
3// Copyright (c) 2007 MIPS Technologies, Inc.
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright

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209 0x4: decode HINT {
210 0x0: decode FUNCTION_LO {
211 format IntOp {
212 0x0: add({{
213 IntReg result;
214 Rd = result = Rs + Rt;
215 if (FULL_SYSTEM &&
216 findOverflow(32, result, Rs, Rt)) {
217 fault = new ArithmeticFault();
217 fault = new IntegerOverflowFault();
218 }
219 }});
220 0x1: addu({{ Rd.sw = Rs.sw + Rt.sw;}});
221 0x2: sub({{
222 IntReg result;
223 Rd = result = Rs - Rt;
224 if (FULL_SYSTEM &&
225 findOverflow(32, result, Rs, ~Rt)) {
218 }
219 }});
220 0x1: addu({{ Rd.sw = Rs.sw + Rt.sw;}});
221 0x2: sub({{
222 IntReg result;
223 Rd = result = Rs - Rt;
224 if (FULL_SYSTEM &&
225 findOverflow(32, result, Rs, ~Rt)) {
226 fault = new ArithmeticFault();
226 fault = new IntegerOverflowFault();
227 }
228 }});
229 0x3: subu({{ Rd.sw = Rs.sw - Rt.sw; }});
230 0x4: and({{ Rd = Rs & Rt; }});
231 0x5: or({{ Rd = Rs | Rt; }});
232 0x6: xor({{ Rd = Rs ^ Rt; }});
233 0x7: nor({{ Rd = ~(Rs | Rt); }});
234 }

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322
323 0x1: decode OPCODE_LO {
324 format IntImmOp {
325 0x0: addi({{
326 IntReg result;
327 Rt = result = Rs + imm;
328 if (FULL_SYSTEM &&
329 findOverflow(32, result, Rs, imm)) {
227 }
228 }});
229 0x3: subu({{ Rd.sw = Rs.sw - Rt.sw; }});
230 0x4: and({{ Rd = Rs & Rt; }});
231 0x5: or({{ Rd = Rs | Rt; }});
232 0x6: xor({{ Rd = Rs ^ Rt; }});
233 0x7: nor({{ Rd = ~(Rs | Rt); }});
234 }

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322
323 0x1: decode OPCODE_LO {
324 format IntImmOp {
325 0x0: addi({{
326 IntReg result;
327 Rt = result = Rs + imm;
328 if (FULL_SYSTEM &&
329 findOverflow(32, result, Rs, imm)) {
330 fault = new ArithmeticFault();
330 fault = new IntegerOverflowFault();
331 }
332 }});
333 0x1: addiu({{ Rt.sw = Rs.sw + imm; }});
334 0x2: slti({{ Rt.sw = (Rs.sw < imm) ? 1 : 0 }});
335 0x3: sltiu({{ Rt.uw = (Rs.uw < (uint32_t)sextImm) ? 1 : 0;}});
336 0x4: andi({{ Rt.sw = Rs.sw & zextImm; }});
337 0x5: ori({{ Rt.sw = Rs.sw | zextImm; }});
338 0x6: xori({{ Rt.sw = Rs.sw ^ zextImm; }});

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332 }});
333 0x1: addiu({{ Rt.sw = Rs.sw + imm; }});
334 0x2: slti({{ Rt.sw = (Rs.sw < imm) ? 1 : 0 }});
335 0x3: sltiu({{ Rt.uw = (Rs.uw < (uint32_t)sextImm) ? 1 : 0;}});
336 0x4: andi({{ Rt.sw = Rs.sw & zextImm; }});
337 0x5: ori({{ Rt.sw = Rs.sw | zextImm; }});
338 0x6: xori({{ Rt.sw = Rs.sw ^ zextImm; }});

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