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| author | Russ Cox <rsc@golang.org> | 2010-12-13 10:04:53 -0500 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2010-12-13 10:04:53 -0500 |
| commit | cc1556d9a29865f1cce8d0ee516b6116bae3ca54 (patch) | |
| tree | 3a446905d40cb8d1a45020f524142e8b2d650b44 | |
| parent | 84713d46f6acc2f64b544e7ede1326a2d3a46d09 (diff) | |
| download | go-cc1556d9a29865f1cce8d0ee516b6116bae3ca54.tar.gz go-cc1556d9a29865f1cce8d0ee516b6116bae3ca54.zip | |
runtime/linux/386: set FPU to 64-bit precision
Fixes #550.
R=r
CC=golang-dev
https://golang.org/cl/3469044
| -rw-r--r-- | src/pkg/runtime/linux/386/rt0.s | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/pkg/runtime/linux/386/rt0.s b/src/pkg/runtime/linux/386/rt0.s index 223e6d2ea4..0f82d6a1c7 100644 --- a/src/pkg/runtime/linux/386/rt0.s +++ b/src/pkg/runtime/linux/386/rt0.s @@ -5,5 +5,13 @@ // Darwin and Linux use the same linkage to main TEXT _rt0_386_linux(SB),7,$0 + // Linux starts the FPU in extended double precision. + // Other operating systems use double precision. + // Change to double precision to match them, + // and to match other hardware that only has double. + PUSHL $0x27F + FLDCW 0(SP) + POPL AX + JMP _rt0_386(SB) |