2 files changed, 73 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/fenv/arm/fenv-hf.S b/libc-top-half/musl/src/fenv/arm/fenv-hf.S
new file mode 100644
index 0000000..2a1de0d
--- /dev/null
+++ b/libc-top-half/musl/src/fenv/arm/fenv-hf.S
@@ -0,0 +1,70 @@
+#if __ARM_PCS_VFP
+
+.syntax unified
+.fpu vfp
+
+.global fegetround
+.type fegetround,%function
+fegetround:
+	fmrx r0, fpscr
+	and r0, r0, #0xc00000
+	bx lr
+
+.global __fesetround
+.hidden __fesetround
+.type __fesetround,%function
+__fesetround:
+	fmrx r3, fpscr
+	bic r3, r3, #0xc00000
+	orr r3, r3, r0
+	fmxr fpscr, r3
+	mov r0, #0
+	bx lr
+
+.global fetestexcept
+.type fetestexcept,%function
+fetestexcept:
+	and r0, r0, #0x1f
+	fmrx r3, fpscr
+	and r0, r0, r3
+	bx lr
+
+.global feclearexcept
+.type feclearexcept,%function
+feclearexcept:
+	and r0, r0, #0x1f
+	fmrx r3, fpscr
+	bic r3, r3, r0
+	fmxr fpscr, r3
+	mov r0, #0
+	bx lr
+
+.global feraiseexcept
+.type feraiseexcept,%function
+feraiseexcept:
+	and r0, r0, #0x1f
+	fmrx r3, fpscr
+	orr r3, r3, r0
+	fmxr fpscr, r3
+	mov r0, #0
+	bx lr
+
+.global fegetenv
+.type fegetenv,%function
+fegetenv:
+	fmrx r3, fpscr
+	str r3, [r0]
+	mov r0, #0
+	bx lr
+
+.global fesetenv
+.type fesetenv,%function
+fesetenv:
+	cmn r0, #1
+	moveq r3, #0
+	ldrne r3, [r0]
+	fmxr fpscr, r3
+	mov r0, #0
+	bx lr
+
+#endif
diff --git a/libc-top-half/musl/src/fenv/arm/fenv.c b/libc-top-half/musl/src/fenv/arm/fenv.c
new file mode 100644
index 0000000..ad295f5
--- /dev/null
+++ b/libc-top-half/musl/src/fenv/arm/fenv.c
@@ -0,0 +1,3 @@
+#if !__ARM_PCS_VFP
+#include "../fenv.c"
+#endif