3 // Integer Instructions
4 // --------------------
6 // MulAcc is the Multiply Accumulator.
7 // This register is mapped on the the HI and LO registers.
8 // Upper 32 bits of MulAcc is mapped on to lower 32 bits of HI register.
9 // Lower 32 bits of MulAcc is mapped on to lower 32 bits of LO register.
12 :function:::unsigned64:MulAcc:
14 unsigned64 result = U8_4 (HI, LO);
18 :function:::void:SET_MulAcc:unsigned64 value
20 *AL4_8 (&HI) = VH4_8 (value);
21 *AL4_8 (&LO) = VL4_8 (value);
24 :function:::signed64:SignedMultiply:signed32 l, signed32 r
26 signed64 result = (signed64) l * (signed64) r;
30 :function:::unsigned64:UnsignedMultiply:unsigned32 l, unsigned32 r
32 unsigned64 result = (unsigned64) l * (unsigned64) r;
36 :function:::unsigned64:Low32Bits:unsigned64 value
38 unsigned64 result = (signed64) (signed32) VL4_8 (value);
42 :function:::unsigned64:High32Bits:unsigned64 value
44 unsigned64 result = (signed64) (signed32) VH4_8 (value);
50 // Multiply, Accumulate
51 000000,5.RS,5.RT,00000,00000,101000::::MAC
55 SET_MulAcc (SD_, MulAcc (SD_) + SignedMultiply (SD_, GPR[RS], GPR[RT]));
58 // D-Multiply, Accumulate
59 000000,5.RS,5.RT,00000,00000,101001::::DMAC
63 LO = LO + SignedMultiply (SD_, GPR[RS], GPR[RT]);
66 // Count Leading Zeros
67 000000,5.RS,00000,5.RD,00000,110101::::CLZ
71 unsigned32 t = Low32Bits (SD_, GPR[RS]);
74 while (! (t & ( 1 << 31))
84 // D-Count Leading Zeros
85 000000,5.RS,00000,5.RD,00000,111101::::DCLZ
89 unsigned64 t = GPR[RS];
92 while (! (t & ( (unsigned64)1 << 63))
99 printf("lo %d\n", (int) c);
109 // Multiply and Move LO.
110 000000,5.RS,5.RT,5.RD,00100,101000::::MUL
111 "mul r<RD>, r<RS>, r<RT>"
114 SET_MulAcc (SD_, 0 + SignedMultiply (SD_, GPR[RS], GPR[RT]));
115 GPR[RD] = Low32Bits (SD_, MulAcc (SD_));
118 // Unsigned Multiply and Move LO.
119 000000,5.RS,5.RT,5.RD,00101,101000::::MULU
120 "mulu r<RD>, r<RS>, r<RT>"
123 SET_MulAcc (SD_, 0 + UnsignedMultiply (SD_, GPR[RS], GPR[RT]));
124 GPR[RD] = Low32Bits (SD_, MulAcc (SD_));
127 // Multiply and Move HI.
128 000000,5.RS,5.RT,5.RD,01100,101000::::MULHI
129 "mulhi r<RD>, r<RS>, r<RT>"
132 SET_MulAcc (SD_, 0 + SignedMultiply (SD_, GPR[RS], GPR[RT]));
133 GPR[RD] = High32Bits (SD_, MulAcc (SD_));
136 // Unsigned Multiply and Move HI.
137 000000,5.RS,5.RT,5.RD,01101,101000::::MULHIU
138 "mulhiu r<RD>, r<RS>, r<RT>"
141 SET_MulAcc (SD_, 0 + UnsignedMultiply (SD_, GPR[RS], GPR[RT]));
142 GPR[RD] = High32Bits (SD_, MulAcc (SD_));
150 // Multiply, Accumulate and Move LO.
151 000000,5.RS,5.RT,5.RD,00010,101000::::MACC
152 "macc r<RD>, r<RS>, r<RT>"
155 SET_MulAcc (SD_, MulAcc (SD_) + SignedMultiply (SD_, GPR[RS], GPR[RT]));
156 GPR[RD] = Low32Bits (SD_, MulAcc (SD_));
159 // Unsigned Multiply, Accumulate and Move LO.
160 000000,5.RS,5.RT,5.RD,00011,101000::::MACCU
161 "maccu r<RD>, r<RS>, r<RT>"
164 SET_MulAcc (SD_, MulAcc (SD_) + UnsignedMultiply (SD_, GPR[RS], GPR[RT]));
165 GPR[RD] = Low32Bits (SD_, MulAcc (SD_));
168 // Multiply, Accumulate and Move HI.
169 000000,5.RS,5.RT,5.RD,01010,101000::::MACCHI
170 "macchi r<RD>, r<RS>, r<RT>"
173 SET_MulAcc (SD_, MulAcc (SD_) + SignedMultiply (SD_, GPR[RS], GPR[RT]));
174 GPR[RD] = High32Bits (SD_, MulAcc (SD_));
177 // Unsigned Multiply, Accumulate and Move HI.
178 000000,5.RS,5.RT,5.RD,01011,101000::::MACCHIU
179 "macchiu r<RD>, r<RS>, r<RT>"
182 SET_MulAcc (SD_, MulAcc (SD_) + UnsignedMultiply (SD_, GPR[RS], GPR[RT]));
183 GPR[RD] = High32Bits (SD_, MulAcc (SD_));