regop.isa (10805:f2c472d4ff9c) regop.isa (11320:42ecb523c64a)
1// Copyright (c) 2007-2008 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// The license below extends only to copyright in the software and shall
5// not be construed as granting a license to any other intellectual
6// property including but not limited to intellectual property relating
7// to a hardware implementation of the functionality of the software
8// licensed hereunder. You may use the software subject to the license

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233 op_class):
234
235 # Globals to stick the output in
236 global header_output
237 global decoder_output
238 global exec_output
239
240 # Stick all the code together so it can be searched at once
1// Copyright (c) 2007-2008 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// The license below extends only to copyright in the software and shall
5// not be construed as granting a license to any other intellectual
6// property including but not limited to intellectual property relating
7// to a hardware implementation of the functionality of the software
8// licensed hereunder. You may use the software subject to the license

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233 op_class):
234
235 # Globals to stick the output in
236 global header_output
237 global decoder_output
238 global exec_output
239
240 # Stick all the code together so it can be searched at once
241 allCode = "|".join((code, flag_code, cond_check, else_code,
241 allCode = "|".join((code, flag_code, cond_check, else_code,
242 cond_control_flag_init))
243 allBigCode = "|".join((big_code, flag_code, cond_check, else_code,
244 cond_control_flag_init))
245
246 # If op2 is used anywhere, make register and immediate versions
247 # of this code.
248 matcher = re.compile(r"(?<!\w)(?P<prefix>s?)op2(?P<typeQual>_[^\W_]+)?")
249 match = matcher.search(allCode + allBigCode)

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781 // If the shift amount is zero, no flags should be modified.
782 if (shiftAmt) {
783 //Zero out any flags we might modify. This way we only have to
784 //worry about setting them.
785 PredcfofBits = PredcfofBits & ~(ext & (CFBit | OFBit));
786 PredecfBit = PredecfBit & ~(ext & ECFBit);
787
788 //If some combination of the CF bits need to be set, set them.
242 cond_control_flag_init))
243 allBigCode = "|".join((big_code, flag_code, cond_check, else_code,
244 cond_control_flag_init))
245
246 # If op2 is used anywhere, make register and immediate versions
247 # of this code.
248 matcher = re.compile(r"(?<!\w)(?P<prefix>s?)op2(?P<typeQual>_[^\W_]+)?")
249 match = matcher.search(allCode + allBigCode)

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781 // If the shift amount is zero, no flags should be modified.
782 if (shiftAmt) {
783 //Zero out any flags we might modify. This way we only have to
784 //worry about setting them.
785 PredcfofBits = PredcfofBits & ~(ext & (CFBit | OFBit));
786 PredecfBit = PredecfBit & ~(ext & ECFBit);
787
788 //If some combination of the CF bits need to be set, set them.
789 if ((ext & (CFBit | ECFBit)) &&
789 if ((ext & (CFBit | ECFBit)) &&
790 shiftAmt <= dataSize * 8 &&
791 bits(SrcReg1, shiftAmt - 1)) {
792 PredcfofBits = PredcfofBits | (ext & CFBit);
793 PredecfBit = PredecfBit | (ext & ECFBit);
794 }
795
796 //Figure out what the OF bit should be.
797 if ((ext & OFBit) && bits(SrcReg1, dataSize * 8 - 1))

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1013 //Zero out any flags we might modify. This way we only have to
1014 //worry about setting them.
1015 PredcfofBits = PredcfofBits & ~(ext & (CFBit | OFBit));
1016 PredecfBit = PredecfBit & ~(ext & ECFBit);
1017
1018 int msb = bits(DestReg, dataSize * 8 - 1);
1019 int CFBits = bits(SrcReg1, dataSize * 8 - realShiftAmt);
1020 //If some combination of the CF bits need to be set, set them.
790 shiftAmt <= dataSize * 8 &&
791 bits(SrcReg1, shiftAmt - 1)) {
792 PredcfofBits = PredcfofBits | (ext & CFBit);
793 PredecfBit = PredecfBit | (ext & ECFBit);
794 }
795
796 //Figure out what the OF bit should be.
797 if ((ext & OFBit) && bits(SrcReg1, dataSize * 8 - 1))

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1013 //Zero out any flags we might modify. This way we only have to
1014 //worry about setting them.
1015 PredcfofBits = PredcfofBits & ~(ext & (CFBit | OFBit));
1016 PredecfBit = PredecfBit & ~(ext & ECFBit);
1017
1018 int msb = bits(DestReg, dataSize * 8 - 1);
1019 int CFBits = bits(SrcReg1, dataSize * 8 - realShiftAmt);
1020 //If some combination of the CF bits need to be set, set them.
1021 if ((ext & (CFBit | ECFBit)) &&
1021 if ((ext & (CFBit | ECFBit)) &&
1022 (realShiftAmt == 0) ? origCFBit : CFBits) {
1023 PredcfofBits = PredcfofBits | (ext & CFBit);
1024 PredecfBit = PredecfBit | (ext & ECFBit);
1025 }
1026
1027 //Figure out what the OF bit should be.
1028 if ((ext & OFBit) && (msb ^ CFBits))
1029 PredcfofBits = PredcfofBits | OFBit;

--- 669 unchanged lines hidden --- 		1022 (realShiftAmt == 0) ? origCFBit : CFBits) {
1023 PredcfofBits = PredcfofBits | (ext & CFBit);
1024 PredecfBit = PredecfBit | (ext & ECFBit);
1025 }
1026
1027 //Figure out what the OF bit should be.
1028 if ((ext & OFBit) && (msb ^ CFBits))
1029 PredcfofBits = PredcfofBits | OFBit;

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