cb79d8ffb1
mescc: Mes C Library: div: Avoid __raise for TinyCC.
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* lib/mes/div.c (__raise)[__TINYC__]: New macro.
2020-12-29 14:24:06 +01:00
0727fd39cc
mescc: Mes C Library: Add __mesabi_umod, __mesabi_udiv.
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* lib/mes/div.c (__mesabi_umod, __mesabi_udiv): New functions.
* include/mes/lib.h: Add prototypes.
2020-12-29 14:24:06 +01:00
62205a9925
ARM: Implement long division.
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* lib/mes/div.c (__mesabi_log2i): New procedure.
(__mesabi_uldiv1): New procedure.
(__mesabi_uldiv): Use it.
Co-Authored-By: Nathalie Kopaczewski <natkopa@gmail.com>
2020-12-29 14:24:05 +01:00
a288598a06
ARM: Speed up __mesabi_uldiv for powers-of-two divisors.
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* lib/mes/div.c (__mesabi_uldiv): Speed up division for powers-of-two
divisors.
2020-12-29 14:24:04 +01:00
afac5847e7
div: Remove libgcc-compatible API.
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* lib/mes/div.c (__aeabi_idiv): Delete procedure.
(__aeabi_idivmod): Delete procedure.
(__aeabi_uidivmod): Delete procedure.
(__aeabi_uidiv): Delete procedure.
2020-10-06 10:04:29 +02:00
3ed3b51371
div: Add comment about __aeabi_idiv.
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* lib/mes/div.c (__aeabi_idiv): Add comment.
2020-10-06 10:04:29 +02:00
95c71f3178
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.
2020-10-06 10:04:28 +02:00
3f03574050
ldiv: Work around missing struct return feature.
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* lib/mes/div.c (__mesabi_ldiv): Remove return type.
(__mesabi_imod): Adapt call site.
(__aeabi_idiv): Adapt call site and move it to conditional compilation.
(__aeabi_idivmod): Adapt call site.
2020-06-10 15:46:12 +02:00
55d38162be
Introduce libmescc.a; Put division by integer in there; split syscalls' errno off.
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* build-aux/configure-lib.sh (libmescc_SOURCES): Add lib/mes/div.c,
lib/linux/*/syscall-internal.c.
* build-aux/build-lib.sh: Add libmescc.a.
* build-aux/build-mes.sh: On gcc, add "-lmescc".
* build-aux/test-c.sh: Add "-lmescc".
* build-aux/check.sh.in: Add mescc to LIBS.
* module/mescc/mescc.scm (mescc:link): Add "mescc".
* module/mescc.scm (mescc:main): Update documentation of "-nodefaultlibs"
and "-nostdlib".
* lib/mes/div.c (ldiv): Rename to...
(__mesabi_ldiv): ...this. Avoid assert.
(__mesabi_div0): Avoid assert.
(__aeabi_idivmod): New procedure.
(__aeabi_idiv): New procedure.
(__aeabi_uidivmod): New procedure.
(__aeabi_uidiv): New procedure.
* lib/linux/x86-mes-gcc/syscall.c (__sys_call, __sys_call1, __sys_call2,
__sys_call3, __sys_call4): Move to...
* lib/linux/x86-mes-gcc/syscall-internal.c: ...here.
(__raise): New procedure.
* lib/linux/x86-mes-mescc/syscall.c (__sys_call, __sys_call1, __sys_call2,
__sys_call3, __sys_call4): Move to...
* lib/linux/x86-mes-mescc/syscall-internal.c: ...here.
(__raise): New procedure.
* lib/linux/arm-mes-gcc/syscall.c: New file.
* lib/linux/arm-mes-gcc/syscall-internal.c: New file.
* lib/linux/arm-mes-mescc/syscall.c: New file.
* lib/linux/arm-mes-mescc/syscall-internal.c: New file.
* lib/gnu/syscall.c (__syscall, __syscall2, __syscall_get, __syscall_put):
Move to...
* lib/gnu/syscall-internal.c: ...here.
2020-06-02 15:04:13 +02:00
3943155a64
ldiv: Make rem < 0 if a < 0.
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* lib/mes/div.c (ldiv): Make rem < 0 if a < 0.
2019-09-09 16:04:13 +02:00
21bd2c1e90
ldiv: Handle a == LONG_MIN.
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* lib/mes/div.c (ldiv): Handle a == LONG_MIN.
2019-09-09 16:04:13 +02:00
cc870b4adc
mescc: Mes C Library: Add integer division algorithm.
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* lib/mes/div.c: New file.
2019-06-14 00:57:43 +02:00
Jan (janneke) Nieuwenhuizen
Danny Milosavljevic