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comparison utils/genaltivec.c @ 44:b0a3f0248ecc default tip

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altivec: vec_splat_* is actually not at all what I thought it was lol
author Paper <paper@tflc.us>
date Tue, 29 Apr 2025 16:54:13 -0400
parents ca0f0223a62d
children
comparison
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43:d96806b543ac 44:b0a3f0248ecc
215 puts(")\n{"); 215 puts(")\n{");
216 216
217 switch (op) { 217 switch (op) {
218 case OP_SPLAT: 218 case OP_SPLAT:
219 printf("\tv%sint%dx%d vec;\n", LOSIGN(is_signed), bits, size); 219 printf("\tv%sint%dx%d vec;\n", LOSIGN(is_signed), bits, size);
220 puts("#ifdef vec_splats");
221 puts("\tvec.altivec = vec_splats(x);"); 220 puts("\tvec.altivec = vec_splats(x);");
222 printf("#elif defined(vec_splat_%s%d)\n", LOAVSIGN(is_signed), bits); 221 puts("\treturn vec;");
223 printf("\tvec.altivec = vec_splat_%s%d(x);\n", LOAVSIGN(is_signed), bits);
224 puts("#else");
225 puts("# error logic error");
226 puts("#endif");
227 printf("\treturn vec;\n");
228 break; 222 break;
229 case OP_LOAD_ALIGNED: 223 case OP_LOAD_ALIGNED:
230 printf("\tv%sint%dx%d vec;\n", LOSIGN(is_signed), bits, size); 224 printf("\tv%sint%dx%d vec;\n", LOSIGN(is_signed), bits, size);
231 puts("\tvec.altivec = vec_ld(0, x);"); 225 puts("\tvec.altivec = vec_ld(0, x);");
232 printf("\treturn vec;\n"); 226 puts("\treturn vec;");
233 break; 227 break;
234 case OP_LOAD: 228 case OP_LOAD:
235 printf("\tv%sint%dx%d vec;\n", LOSIGN(is_signed), bits, size); 229 printf("\tv%sint%dx%d vec;\n", LOSIGN(is_signed), bits, size);
236 puts("\tvec.altivec = vec_perm(vec_ld(0, x), vec_ld(16, x), vec_lvsl(0, x));"); 230 puts("\tvec.altivec = vec_perm(vec_ld(0, x), vec_ld(16, x), vec_lvsl(0, x));");
237 printf("\treturn vec;\n"); 231 puts("\treturn vec;");
238 break; 232 break;
239 case OP_STORE_ALIGNED: 233 case OP_STORE_ALIGNED:
240 puts("\tvec_st(vec.altivec, 0, arr);"); 234 puts("\tvec_st(vec.altivec, 0, arr);");
241 break; 235 break;
242 case OP_STORE: 236 case OP_STORE:
274 if (op == OP_RSHIFT) { 268 if (op == OP_RSHIFT) {
275 printf("\tvec.altivec = vec_sr%s(vec1.altivec, vec2.altivec);\n", (is_signed) ? "a" : ""); 269 printf("\tvec.altivec = vec_sr%s(vec1.altivec, vec2.altivec);\n", (is_signed) ? "a" : "");
276 } else { 270 } else {
277 printf("\tvec.altivec = (vector %s %s)vec_%s(vec1.altivec, vec2.altivec);\n", (is_signed) ? "signed" : "unsigned", types[(bits / 8) - 1], op_altivec[op - OP_ADD]); 271 printf("\tvec.altivec = (vector %s %s)vec_%s(vec1.altivec, vec2.altivec);\n", (is_signed) ? "signed" : "unsigned", types[(bits / 8) - 1], op_altivec[op - OP_ADD]);
278 } 272 }
279 printf("\treturn vec;\n"); 273 puts("\treturn vec;");
280 break; 274 break;
281 } 275 }
282 default: 276 default:
283 printf("#error implement this operation"); 277 printf("#error implement this operation");
284 break; 278 break;