1# Copyright (c) 2007 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
9# use which is NOT directed to receiving any direct monetary

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68};
69
70#
71# Versions which have the rep prefix. These could benefit from some loop
72# unrolling.
73#
74
75def macroop SCAS_E_M {
76 # Find the constant we need to either add or subtract from rdi
77 ruflag t0, 10
78 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
79 subi t3, t0, dsz, dataSize=asz
80 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
81
82 ld t1, es, [1, t0, rdi]
83 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
84
85 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
86 add rdi, rdi, t2, dataSize=asz
87 bri t0, 4, flags=(CSTRZnEZF,)
88 fault "NoFault"
89};
90
91def macroop SCAS_N_M {
92 # Find the constant we need to either add or subtract from rdi
93 ruflag t0, 10
94 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
95 subi t3, t0, dsz, dataSize=asz
96 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
97
98 ld t1, es, [1, t0, rdi]
99 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
100
101 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
102 add rdi, rdi, t2, dataSize=asz
103 bri t0, 4, flags=(CSTRnZnEZF,)
104 fault "NoFault"
105};
106
107'''