2014-05-22 Charles Baylis <charles.bay...@linaro.org>
* config/arm/bpabi.S (__aeabi_uldivmod, __aeabi_ldivmod): Add comment
describing register usage on function entry and exit.
---
libgcc/config/arm/bpabi.S | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/libgcc/config/arm/bpabi.S b/libgcc/config/arm/bpabi.S
index f47d715..ae76cd3 100644
--- a/libgcc/config/arm/bpabi.S
+++ b/libgcc/config/arm/bpabi.S
@@ -122,6 +122,14 @@ ARM_FUNC_START aeabi_ulcmp
#ifdef L_aeabi_ldivmod
+/* Perform 64 bit signed division.
+ Inputs:
+ r0:r1 numerator
+ r2:r3 denominator
+ Outputs:
+ r0:r1 quotient
+ r2:r3 remainder
+ */
ARM_FUNC_START aeabi_ldivmod
cfi_start __aeabi_ldivmod, LSYM(Lend_aeabi_ldivmod)
test_div_by_zero signed
@@ -145,6 +153,14 @@ ARM_FUNC_START aeabi_ldivmod
#ifdef L_aeabi_uldivmod
+/* Perform 64 bit signed division.
+ Inputs:
+ r0:r1 numerator
+ r2:r3 denominator
+ Outputs:
+ r0:r1 quotient
+ r2:r3 remainder
+ */
ARM_FUNC_START aeabi_uldivmod
cfi_start __aeabi_uldivmod, LSYM(Lend_aeabi_uldivmod)
test_div_by_zero unsigned
--
1.9.1
