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symfpu: Add altsqrt

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No denormalization here.  That can be a problem for later (or not at all).
This commit is contained in:
Krystine Sherwin 2026-02-21 17:08:35 +13:00
parent 48cb1d10b1
commit c2731b43a4
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2 changed files with 5 additions and 2 deletions
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2
libs/symfpu

@ -1 +1 @@
Subproject commit 95b27d8f2f7cd965e13ca5ff33fd7b47c410b561
Subproject commit 50cca80758d16bf72161d4d2eafb7b7c18ab44ba

5
passes/cmds/symfpu.cc
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@ -447,7 +447,8 @@ struct SymFpuPass : public Pass {
}
if (args[argidx] == "-op" && argidx+1 < args.size()) {
op = args[++argidx];
if (op.compare("sqrt") == 0)
if (op.compare("sqrt") == 0
|| op.compare("altsqrt") == 0) // currently undocumented
inputs = 1;
else if (op.compare("add") == 0
|| op.compare("sub") == 0
@ -534,6 +535,8 @@ struct SymFpuPass : public Pass {
return symfpu::falseDivide_flagged(format, rounding_mode, a, b, prop(true));
else if (op.compare("alt2div") == 0)
return symfpu::falseDivide_flagged(format, rounding_mode, a, b, prop(false));
else if (op.compare("altsqrt") == 0)
return symfpu::falseSqrt_flagged(format, rounding_mode, a);
else
log_abort();
};