macromem.cc (7170:6f97f5107abe) macromem.cc (7175:db22937a4e0f)
1/*
2 * Copyright (c) 2010 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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

113 lastUop = new MicroAddiUop(machInst, rn, rn, ones * 4);
114 } else {
115 lastUop = new MicroSubiUop(machInst, rn, rn, ones * 4);
116 }
117 }
118 lastUop->setLastMicroop();
119}
120
1/*
2 * Copyright (c) 2010 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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

113 lastUop = new MicroAddiUop(machInst, rn, rn, ones * 4);
114 } else {
115 lastUop = new MicroSubiUop(machInst, rn, rn, ones * 4);
116 }
117 }
118 lastUop->setLastMicroop();
119}
120
121MacroVFPMemOp::MacroVFPMemOp(const char *mnem, ExtMachInst machInst,
122 OpClass __opClass, IntRegIndex rn,
123 RegIndex vd, bool single, bool up,
124 bool writeback, bool load, uint32_t offset) :
125 PredMacroOp(mnem, machInst, __opClass)
126{
127 const int maxMicroops = 17;
128 microOps = new StaticInstPtr[maxMicroops];
129 int i = 0;
130
131 // The lowest order bit selects fldmx (set) or fldmd (clear). These seem
132 // to be functionally identical except that fldmx is deprecated. For now
133 // we'll assume they're otherwise interchangable.
134 int count = (single ? offset : (offset / 2));
135 if (count == 0 || count > NumFloatArchRegs)
136 warn_once("Bad offset field for VFP load/store multiple.\n");
137 if (count == 0) {
138 // Force there to be at least one microop so the macroop makes sense.
139 writeback = true;
140 }
141 if (count > NumFloatArchRegs)
142 count = NumFloatArchRegs;
143
144 uint32_t addr = 0;
145
146 if (up)
147 addr = -4 * offset;
148
149 for (int j = 0; j < count; j++) {
150 if (load) {
151 microOps[i++] = new MicroLdrFpUop(machInst, vd++, rn,
152 true, addr);
153 if (!single)
154 microOps[i++] = new MicroLdrFpUop(machInst, vd++, rn,
155 true, addr + 4);
156 } else {
157 microOps[i++] = new MicroStrFpUop(machInst, vd++, rn,
158 true, addr);
159 if (!single)
160 microOps[i++] = new MicroStrFpUop(machInst, vd++, rn,
161 true, addr + 4);
162 }
163 addr += (single ? 4 : 8);
164 }
165
166 if (writeback) {
167 if (up) {
168 microOps[i++] =
169 new MicroAddiUop(machInst, rn, rn, 4 * offset);
170 } else {
171 microOps[i++] =
172 new MicroSubiUop(machInst, rn, rn, 4 * offset);
173 }
174 }
175
176 numMicroops = i;
177 assert(numMicroops <= maxMicroops);
178 microOps[numMicroops - 1]->setLastMicroop();
121}
179}
180
181}