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div: Move __aeabi_idiv to __GNUC__; introduce __mesabi_idiv.

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* lib/mes/div.c (__aeabi_idiv): Move for conditional compilation.
(__mesabi_idiv): New procedure.
* module/mescc/armv4/as.scm (armv4:r0/r1): Use __mesabi_idiv.
This commit is contained in:
Danny Milosavljevic 2020-08-23 16:08:57 +02:00 committed by Jan (janneke) Nieuwenhuizen
parent 931ae9280e
commit 95c71f3178
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GPG key ID: F3C1A0D9C1D65273
2 changed files with 12 additions and 6 deletions
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14
lib/mes/div.c
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@ -120,15 +120,13 @@ __mesabi_imod (long a, long b)
return result.rem;
}
#if !SYSTEM_LIBC && __arm__
long
__aeabi_idiv (long a, long b)
int
__mesabi_idiv (int a, int b)
{
ldiv_t result;
__mesabi_ldiv(a, b, &result);
return result.quot;
}
#endif // !SYSTEM_LIBC && __arm__
#if __GNUC__ && !SYSTEM_LIBC && __arm__
// ...-binutils-2.31.1/bin/ld: hash.o: in function `hash_cstring':
@ -141,6 +139,14 @@ __aeabi_idiv (long a, long b)
// ntoab.c:(.text+0x54): undefined reference to `__aeabi_uidivmod'
// ...-binutils-2.31.1/bin/ld: ntoab.c:(.text+0x62): undefined reference to `__aeabi_uidiv'
long
__aeabi_idiv (long a, long b)
{
ldiv_t result;
__mesabi_ldiv(a, b, &result);
return result.quot;
}
/* Result: r0: quotient; r1: remainder */
long
__aeabi_idivmod (long a, long b)

4
module/mescc/armv4/as.scm
View file

@ -364,10 +364,10 @@
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
(if signed?
;; __aeabi_idiv(a, b)
;; __mesabi_idiv(a, b)
(cons* `(,(string-append "push___%" r1))
`(,(string-append "push___%" r0))
(armv4:call-label #f "__aeabi_idiv" 2))
(armv4:call-label #f "__mesabi_idiv" 2))
;; __mesabi_uldiv(a, b, remainderp)
(cons* `(,(string-append "push___0"))
`(,(string-append "push___%" r1))