scan_string.py (5661:443e6f925027) scan_string.py (6474:585faad1057f)
1# Copyright (c) 2007-2008 The Hewlett-Packard Development Company
2# All rights reserved.
3#
4# Redistribution and use of this software in source and binary forms,
5# with or without modification, are permitted provided that the
6# following conditions are met:
7#
8# The software must be used only for Non-Commercial Use which means any

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57def macroop SCAS_M {
58 # Find the constant we need to either add or subtract from rdi
59 ruflag t0, 10
60 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
61 subi t3, t0, dsz, dataSize=asz
62 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
63
64 ld t1, es, [1, t0, rdi]
1# Copyright (c) 2007-2008 The Hewlett-Packard Development Company
2# All rights reserved.
3#
4# Redistribution and use of this software in source and binary forms,
5# with or without modification, are permitted provided that the
6# following conditions are met:
7#
8# The software must be used only for Non-Commercial Use which means any

--- 48 unchanged lines hidden (view full) ---

57def macroop SCAS_M {
58 # Find the constant we need to either add or subtract from rdi
59 ruflag t0, 10
60 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
61 subi t3, t0, dsz, dataSize=asz
62 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
63
64 ld t1, es, [1, t0, rdi]
65 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
65 sub t0, rax, t1, flags=(OF, SF, ZF, AF, PF, CF)
66
67 add rdi, rdi, t2, dataSize=asz
68};
69
70#
71# Versions which have the rep prefix. These could benefit from some loop
72# unrolling.
73#

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79 # Find the constant we need to either add or subtract from rdi
80 ruflag t0, 10
81 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
82 subi t3, t0, dsz, dataSize=asz
83 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
84
85topOfLoop:
86 ld t1, es, [1, t0, rdi]
66
67 add rdi, rdi, t2, dataSize=asz
68};
69
70#
71# Versions which have the rep prefix. These could benefit from some loop
72# unrolling.
73#

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79 # Find the constant we need to either add or subtract from rdi
80 ruflag t0, 10
81 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
82 subi t3, t0, dsz, dataSize=asz
83 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
84
85topOfLoop:
86 ld t1, es, [1, t0, rdi]
87 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
87 sub t0, rax, t1, flags=(OF, SF, ZF, AF, PF, CF)
88
89 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
90 add rdi, rdi, t2, dataSize=asz
91 br label("topOfLoop"), flags=(CSTRZnEZF,)
92end:
93 fault "NoFault"
94};
95

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100 # Find the constant we need to either add or subtract from rdi
101 ruflag t0, 10
102 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
103 subi t3, t0, dsz, dataSize=asz
104 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
105
106topOfLoop:
107 ld t1, es, [1, t0, rdi]
88
89 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
90 add rdi, rdi, t2, dataSize=asz
91 br label("topOfLoop"), flags=(CSTRZnEZF,)
92end:
93 fault "NoFault"
94};
95

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100 # Find the constant we need to either add or subtract from rdi
101 ruflag t0, 10
102 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
103 subi t3, t0, dsz, dataSize=asz
104 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
105
106topOfLoop:
107 ld t1, es, [1, t0, rdi]
108 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
108 sub t0, rax, t1, flags=(OF, SF, ZF, AF, PF, CF)
109
110 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
111 add rdi, rdi, t2, dataSize=asz
112 br label("topOfLoop"), flags=(CSTRnZnEZF,)
113end:
114 fault "NoFault"
115};
116
117'''
109
110 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
111 add rdi, rdi, t2, dataSize=asz
112 br label("topOfLoop"), flags=(CSTRnZnEZF,)
113end:
114 fault "NoFault"
115};
116
117'''