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a9298102 JZ |
1 | |
2 | .EXTERN MY_LABEL2; | |
3 | .section .text; | |
4 | ||
5 | // | |
6 | //6 CONTROL CODE BIT MANAGEMENT | |
7 | // | |
8 | ||
9 | //CC = Dreg == Dreg ; /* equal, register, signed (a) */ | |
10 | CC = R7 == R0; | |
11 | CC = R6 == R1; | |
12 | CC = R0 == R7; | |
13 | ||
14 | //CC = Dreg == imm3 ; /* equal, immediate, signed (a) */ | |
15 | CC = R7 == -4; | |
16 | CC = R7 == 3; | |
17 | CC = R0 == -4; | |
18 | CC = R0 == 3; | |
19 | ||
20 | //CC = Dreg < Dreg ; /* less than, register, signed (a) */ | |
21 | CC = R7 < R0; | |
22 | CC = R6 < R0; | |
23 | CC = R7 < R1; | |
24 | CC = R1 < R7; | |
25 | CC = R0 < R6; | |
26 | ||
27 | //CC = Dreg < imm3 ; /* less than, immediate, signed (a) */ | |
28 | CC = R7 < -4; | |
29 | CC = R6 < -4; | |
30 | CC = R7 < 3; | |
31 | CC = R1 < 3; | |
32 | ||
33 | //CC = Dreg <= Dreg ; /* less than or equal, register, signed (a) */ | |
34 | CC = R7 <= R0; | |
35 | CC = R6 <= R0; | |
36 | CC = R7 <= R1; | |
37 | CC = R1 <= R7; | |
38 | CC = R0 <= R6; | |
39 | ||
40 | //CC = Dreg <= imm3 ; /* less than or equal, immediate, signed (a) */ | |
41 | CC = R7 <= -4; | |
42 | CC = R6 <= -4; | |
43 | CC = R7 <= 3; | |
44 | CC = R1 <= 3; | |
45 | ||
46 | //CC = Dreg < Dreg (IU) ; /* less than, register, unsigned (a) */ | |
47 | CC = R7 < R0(IU); | |
48 | CC = R6 < R0(IU); | |
49 | CC = R7 < R1(IU); | |
50 | CC = R1 < R7(IU); | |
51 | CC = R0 < R6(IU); | |
52 | ||
53 | //CC = Dreg < uimm3 (IU) ; /* less than, immediate, unsigned (a) */ | |
54 | CC = R7 < 0(IU); | |
55 | CC = R6 < 0(IU); | |
56 | CC = R7 < 7(IU); | |
57 | CC = R1 < 7(IU); | |
58 | //CC = Dreg <= Dreg (IU) ; /* less than or equal, register, unsigned (a) */ | |
59 | CC = R7 <= R0(IU); | |
60 | CC = R6 <= R0(IU); | |
61 | CC = R7 <= R1(IU); | |
62 | CC = R1 <= R7(IU); | |
63 | CC = R0 <= R6(IU); | |
64 | ||
65 | ||
66 | //CC = Dreg <= uimm3 (IU) ; /* less than or equal, immediate unsigned (a) */ | |
67 | CC = R7 <= 0(IU); | |
68 | CC = R6 <= 0(IU); | |
69 | CC = R7 <= 7(IU); | |
70 | CC = R1 <= 7(IU); | |
71 | ||
72 | //CC = Preg == Preg ; /* equal, register, signed (a) */ | |
73 | CC = P5 == P0; | |
74 | CC = P5 == P1; | |
75 | CC = P0 == P2; | |
76 | CC = P3 == P5; | |
77 | ||
78 | //CC = Preg == imm3 ; /* equal, immediate, signed (a) */ | |
79 | CC = P5 == -4; | |
80 | CC = P5 == 0; | |
81 | CC = P5 == 3; | |
82 | CC = P2 == -4; | |
83 | CC = P2 == 0; | |
84 | CC = P2 == 3; | |
85 | ||
86 | //CC = Preg < Preg ; /* less than, register, signed (a) */ | |
87 | CC = P5 < P0; | |
88 | CC = P5 < P1; | |
89 | CC = P0 < P2; | |
90 | CC = P3 < P5; | |
91 | ||
92 | //CC = Preg < imm3 ; /* less than, immediate, signed (a) */ | |
93 | CC = P5 < -4; | |
94 | CC = P5 < 0; | |
95 | CC = P5 < 3; | |
96 | CC = P2 < -4; | |
97 | CC = P2 < 0; | |
98 | CC = P2 < 3; | |
99 | ||
100 | ||
101 | //CC = Preg <= Preg ; /* less than or equal, register, signed (a) */ | |
102 | CC = P5 <= P0; | |
103 | CC = P5 <= P1; | |
104 | CC = P0 <= P2; | |
105 | CC = P3 <= P5; | |
106 | ||
107 | //CC = Preg <= imm3 ; /* less than or equal, immediate, signed (a) */ | |
108 | CC = P5 <= -4; | |
109 | CC = P5 <= 0; | |
110 | CC = P5 <= 3; | |
111 | CC = P2 <= -4; | |
112 | CC = P2 <= 0; | |
113 | CC = P2 <= 3; | |
114 | ||
115 | //CC = Preg < Preg (IU) ; /* less than, register, unsigned (a) */ | |
116 | CC = P5 < P0(IU); | |
117 | CC = P5 < P1(IU); | |
118 | CC = P0 < P2(IU); | |
119 | CC = P3 < P5(IU); | |
120 | ||
121 | //CC = Preg < uimm3 (IU) ; /* less than, immediate, unsigned (a) */ | |
122 | CC = P5 < 0(IU); | |
123 | CC = P5 < 7(IU); | |
124 | CC = P2 < 0(IU); | |
125 | CC = P2 < 7(IU); | |
126 | ||
127 | //CC = Preg <= Preg (IU) ; /* less than or equal, register, unsigned (a) */ | |
128 | CC = P5 <= P0(IU); | |
129 | CC = P5 <= P1(IU); | |
130 | CC = P0 <= P2(IU); | |
131 | CC = P3 <= P5(IU); | |
132 | ||
133 | //CC = Preg <= uimm3 (IU) ; /* less than or equal, immediate unsigned (a) */ | |
134 | CC = P5 <= 0(IU); | |
135 | CC = P5 <= 7(IU); | |
136 | CC = P2 <= 0(IU); | |
137 | CC = P2 <= 7(IU); | |
138 | ||
139 | CC = A0 == A1 ; /* equal, signed (a) */ | |
140 | CC = A0 < A1 ; /* less than, Accumulator, signed (a) */ | |
141 | CC = A0 <= A1 ; /* less than or equal, Accumulator, signed (a) */ | |
142 | ||
143 | //Dreg = CC ; /* CC into 32-bit data register, zero-extended (a) */ | |
144 | R7 = CC; | |
145 | R0 = CC; | |
146 | ||
147 | //statbit = CC ; /* status bit equals CC (a) */ | |
148 | AZ = CC; | |
149 | AN = CC; | |
150 | AC0= CC; | |
151 | AC1= CC; | |
152 | //V = CC; | |
153 | VS = CC; | |
154 | AV0= CC; | |
155 | AV0S= CC; | |
156 | AV1 = CC; | |
157 | AV1S= CC; | |
158 | AQ = CC; | |
159 | //statbit |= CC ; /* status bit equals status bit OR CC (a) */ | |
160 | AZ |= CC; | |
161 | AN |= CC; | |
162 | AC0|= CC; | |
163 | AC1|= CC; | |
164 | //V |= CC; | |
165 | VS |= CC; | |
166 | AV0|= CC; | |
167 | AV0S|= CC; | |
168 | AV1 |= CC; | |
169 | AV1S|= CC; | |
170 | AQ |= CC; | |
171 | ||
172 | //statbit &= CC ; /* status bit equals status bit AND CC (a) */ | |
173 | AZ &= CC; | |
174 | AN &= CC; | |
175 | AC0&= CC; | |
176 | AC1&= CC; | |
177 | //V &= CC; | |
178 | VS &= CC; | |
179 | AV0&= CC; | |
180 | AV0S&= CC; | |
181 | AV1 &= CC; | |
182 | AV1S&= CC; | |
183 | AQ &= CC; | |
184 | ||
185 | //statbit ^= CC ; /* status bit equals status bit XOR CC (a) */ | |
186 | ||
187 | AZ ^= CC; | |
188 | AN ^= CC; | |
189 | AC0^= CC; | |
190 | AC1^= CC; | |
191 | //V ^= CC; | |
192 | VS ^= CC; | |
193 | AV0^= CC; | |
194 | AV0S^= CC; | |
195 | AV1 ^= CC; | |
196 | AV1S^= CC; | |
197 | AQ ^= CC; | |
198 | //CC = Dreg ; /* CC set if the register is non-zero (a) */ | |
199 | CC = R7; | |
200 | CC = R6; | |
201 | CC = R1; | |
202 | CC = R0; | |
203 | ||
204 | ||
205 | //CC = statbit ; /* CC equals status bit (a) */ | |
206 | CC = AZ; | |
207 | CC = AN; | |
208 | CC = AC0; | |
209 | CC = AC1; | |
210 | //CC = V; | |
211 | CC = VS; | |
212 | CC = AV0; | |
213 | CC = AV0S; | |
214 | CC = AV1; | |
215 | CC = AV1S; | |
216 | CC = AQ; | |
217 | ||
218 | //CC |= statbit ; /* CC equals CC OR status bit (a) */ | |
219 | CC |= AZ; | |
220 | CC |= AN; | |
221 | CC |= AC0; | |
222 | CC |= AC1; | |
223 | //CC |= V; | |
224 | CC |= VS; | |
225 | CC |= AV0; | |
226 | CC |= AV0S; | |
227 | CC |= AV1; | |
228 | CC |= AV1S; | |
229 | CC |= AQ; | |
230 | ||
231 | //CC &= statbit ; /* CC equals CC AND status bit (a) */ | |
232 | CC &= AZ; | |
233 | CC &= AN; | |
234 | CC &= AC0; | |
235 | CC &= AC1; | |
236 | //CC &= V; | |
237 | CC &= VS; | |
238 | CC &= AV0; | |
239 | CC &= AV0S; | |
240 | CC &= AV1; | |
241 | CC &= AV1S; | |
242 | CC &= AQ; | |
243 | ||
244 | //CC ^= statbit ; /* CC equals CC XOR status bit (a) */ | |
245 | CC ^= AZ; | |
246 | CC ^= AN; | |
247 | CC ^= AC0; | |
248 | CC ^= AC1; | |
249 | //CC ^= V; | |
250 | CC ^= VS; | |
251 | CC ^= AV0; | |
252 | CC ^= AV0S; | |
253 | CC ^= AV1; | |
254 | CC ^= AV1S; | |
255 | CC ^= AQ; | |
256 | ||
257 | CC = ! CC ; /* (a) */ |