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# Copyright (c) 2008 The Regents of The University of Michigan
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Gabe Black
# Copyright (c) 2007-2008 The Hewlett-Packard Development Company
# All rights reserved.
#
# Redistribution and use of this software in source and binary forms,
# with or without modification, are permitted provided that the
# following conditions are met:
#
# The software must be used only for Non-Commercial Use which means any
# use which is NOT directed to receiving any direct monetary
# compensation for, or commercial advantage from such use. Illustrative
# examples of non-commercial use are academic research, personal study,
# teaching, education and corporate research & development.
# Illustrative examples of commercial use are distributing products for
# commercial advantage and providing services using the software for
# commercial advantage.
#
# If you wish to use this software or functionality therein that may be
# covered by patents for commercial use, please contact:
# Director of Intellectual Property Licensing
# Office of Strategy and Technology
# Hewlett-Packard Company
# 1501 Page Mill Road
# Palo Alto, California 94304
#
# Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer. Redistributions
# in binary form must reproduce the above copyright notice, this list of
# conditions and the following disclaimer in the documentation and/or
# other materials provided with the distribution. Neither the name of
# the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission. No right of
# sublicense is granted herewith. Derivatives of the software and
# output created using the software may be prepared, but only for
# Non-Commercial Uses. Derivatives of the software may be shared with
# others provided: (i) the others agree to abide by the list of
# conditions herein which includes the Non-Commercial Use restrictions;
# and (ii) such Derivatives of the software include the above copyright
# notice to acknowledge the contribution from this software where
# applicable, this list of conditions and the disclaimer below.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Gabe Black
microcode = '''
def macroop BSR_R_R {
# Determine if the input was zero, and also move it to a temp reg.
movi t1, t1, t0, dataSize=8
and t1, regm, regm, flags=(ZF,)
br label("end"), flags=(CZF,)
# Zero out the result register
movi reg, reg, 0x0
# Bit 6
srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 0x20
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 0x10
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 0x8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 0x4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 0x2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 0x1
mov reg, reg, t4, flags=(nCEZF,)
end:
fault "NoFault"
};
def macroop BSR_R_M {
movi t1, t1, t0, dataSize=8
ld t1, seg, sib, disp
# Determine if the input was zero, and also move it to a temp reg.
and t1, t1, t1, flags=(ZF,)
br label("end"), flags=(CZF,)
# Zero out the result register
movi reg, reg, 0x0
# Bit 6
srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 0x20
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 0x10
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 0x8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 0x4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 0x2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 0x1
mov reg, reg, t4, flags=(nCEZF,)
end:
fault "NoFault"
};
def macroop BSR_R_P {
rdip t7
movi t1, t1, t0, dataSize=8
ld t1, seg, riprel, disp
# Determine if the input was zero, and also move it to a temp reg.
and t1, t1, t1, flags=(ZF,)
br label("end"), flags=(CZF,)
# Zero out the result register
movi reg, reg, 0x0
# Bit 6
srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 0x20
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 0x10
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 0x8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 0x4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 0x2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 0x1
mov reg, reg, t4, flags=(nCEZF,)
end:
fault "NoFault"
};
def macroop BSF_R_R {
# Determine if the input was zero, and also move it to a temp reg.
mov t1, t1, t0, dataSize=8
and t1, regm, regm, flags=(ZF,)
br label("end"), flags=(CZF,)
# Zero out the result register
movi reg, reg, 0
subi t2, t1, 1
xor t1, t2, t1
# Bit 6
srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 32
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 16
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 1
mov reg, reg, t4, flags=(nCEZF,)
end:
fault "NoFault"
};
def macroop BSF_R_M {
mov t1, t1, t0, dataSize=8
ld t1, seg, sib, disp
# Determine if the input was zero, and also move it to a temp reg.
and t1, t1, t1, flags=(ZF,)
br label("end"), flags=(CZF,)
# Zero out the result register
mov reg, reg, t0
subi t2, t1, 1
xor t1, t2, t1
# Bit 6
srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 32
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 16
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 1
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
end:
fault "NoFault"
};
def macroop BSF_R_P {
rdip t7
mov t1, t1, t0, dataSize=8
ld t1, seg, riprel, disp
# Determine if the input was zero, and also move it to a temp reg.
and t1, t1, t1, flags=(ZF,)
br label("end"), flags=(CZF,)
# Zero out the result register
mov reg, reg, t0
subi t2, t1, 1
xor t1, t2, t1
# Bit 6
srli t3, t1, 32, dataSize=8, flags=(EZF,)
ori t4, reg, 32
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 5
srli t3, t1, 16, dataSize=8, flags=(EZF,)
ori t4, reg, 16
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 4
srli t3, t1, 8, dataSize=8, flags=(EZF,)
ori t4, reg, 8
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 3
srli t3, t1, 4, dataSize=8, flags=(EZF,)
ori t4, reg, 4
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 2
srli t3, t1, 2, dataSize=8, flags=(EZF,)
ori t4, reg, 2
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
# Bit 1
srli t3, t1, 1, dataSize=8, flags=(EZF,)
ori t4, reg, 1
mov reg, reg, t4, flags=(nCEZF,)
mov t1, t1, t3, flags=(nCEZF,)
end:
fault "NoFault"
};
'''
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