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+Question/Request: FEX x87 reduced precison info and comparison vs new "rosettax87" project hack?
+Hi,
+just very new to FEX and finding that FEX supports some kind of x87 reduced precision..
+
+searching google I find references everywhere but not much info:
+a)https://www.reddit.com/r/AsahiGaming/comments/1hv1cix/games_that_perform_better_with_reduced_x87/
+b)https://fex-emu.com/FEX-2310/:
+"Until then it is recommended to use FEX’s x87 reduced precision mode to try and alleviate some of the overhead."
+c)https://fex-emu.com/FEX-2503/
+"This allows to to see that maybe we should try enabling the x87 reduced precision option to get some performance back."
+
+and in some forum I found:
+FEX_X87REDUCEDPRECISION=1
+so that's the enviroment variable to add, right?
+
+also what perf can we gain vs non reduced on targeted microtests? what kind of reduction precision loss?
+sorry if I don't know where to search for docs..
+
+I say this because for Rosetta since recently we have project:
+https://github.com/Lifeisawful/rosettax87
+which acceleretes x87 computation in some cases 10X at least on M4:
+https://github.com/Lifeisawful/rosettax87/issues/2
+
+at least on this simple shared benchmark calculation fsqrt seems:
+clang -v -arch x86_64 -mno-sse -mfpmath=387 ./sample/math.c -o ./build/math
+
+at least
+Rosetta M4:
+    Average time: 123040 ticks
+
+Rosettax87 M4:
+    Average time: 12222 ticks
+
+
+part of code:
+```
+#define TIMES 1000000
+#define RUNS 10
+#define METHOD run_fsqrt
+
+clock_t run_fsqrt() {
+    float sixteen = 16.0f;
+    
+    clock_t start = clock();
+    
+    // Run fsqrt many times to get measurable time
+    float four;
+    for(int i = 0; i < TIMES; i++) {
+        four = __builtin_sqrtf(sixteen);
+    }
+    
+    clock_t end = clock();
+    clock_t time_spent = (end - start);
+    
+    printf("Result: %x\n", *(uint32_t*)&four);
+    return time_spent;
+}
+
+int main() {
+    clock_t times[RUNS];
+    clock_t sum = 0;
+
+    printf("benchmark %s\n", STRINGIFY(METHOD));
+    
+    // Perform multiple runs
+    for(int i = 0; i < RUNS; i++) {
+        times[i] = METHOD();
+        sum += times[i];
+        printf("Run %d time: %lu ticks\n", i+1, times[i]);
+    }
+    
+    // Calculate average using integer math
+    clock_t avg = sum / RUNS;
+    printf("\nAverage time: %lu ticks\n", avg);
+    
+    return 0;
+}
+```
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