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symfpu: Add altdiv

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This commit is contained in:
Krystine Sherwin
2026-02-20 14:01:49 +13:00
parent 1629c2bd3d
commit f39427f40a
3 changed files with 5 additions and 1 deletions
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2
libs/symfpu

Submodule libs/symfpu updated: 7fce38f94f...04da5d2283

3
passes/cmds/symfpu.cc
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@@ -452,6 +452,7 @@ struct SymFpuPass : public Pass {
else if (op.compare("add") == 0
|| op.compare("sub") == 0
|| op.compare("mul") == 0
|| op.compare("altdiv") == 0 // currently undocumented
|| op.compare("div") == 0)
inputs = 2;
else if (op.compare("muladd") == 0)
@@ -528,6 +529,8 @@ struct SymFpuPass : public Pass {
return symfpu::sqrt_flagged(format, rounding_mode, a);
else if (op.compare("muladd") == 0)
return symfpu::fma_flagged(format, rounding_mode, a, b, c);
else if (op.compare("altdiv") == 0)
return symfpu::falseDivide_flagged(format, rounding_mode, a, b);
else
log_abort();
};

1
tests/symfpu/run-test.sh
View File

@@ -41,5 +41,6 @@ prove_op sub "-DSUB -DADDSUB -DADDS"
prove_op mul "-DMUL -DMULS"
prove_op div "-DDIV"
prove_op muladd "-DMULADD -DMULS -DADDS"
prove_op altdiv "-DDIV -DALTDIV"
generate_mk --yosys-scripts