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Get libc/tinymath/ compiling on aarch64

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Justine Tunney 2023-05-02 18:35:25 -07:00
parent 2b73e72d59
commit 135080fd3e
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GPG key ID: BE714B4575D6E328
243 changed files with 7773 additions and 4027 deletions
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60
libc/intrin/fenv.S
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@ -28,6 +28,7 @@
#include "libc/macros.internal.h"
feclearexcept:
#ifdef __x86_64__
# maintain exceptions in the sse mxcsr, clear x87 exceptions
mov %edi,%ecx
and $0x3f,%ecx
@ -45,18 +46,36 @@ feclearexcept:
ldmxcsr -8(%rsp)
1: xor %eax,%eax
ret
#elif defined(__aarch64__)
and w0,w0,#0x1f
mrs x1,fpsr
bic w1,w1,w0
msr fpsr,x1
mov w0,#0
ret
#endif
.endfn feclearexcept,globl
feraiseexcept:
#ifdef __x86_64__
and $0x3f,%edi
stmxcsr -8(%rsp)
or %edi,-8(%rsp)
ldmxcsr -8(%rsp)
xor %eax,%eax
ret
#elif defined(__aarch64__)
and w0,w0,#0x1f
mrs x1,fpsr
orr w1,w1,w0
msr fpsr,x1
mov w0,#0
ret
#endif
.endfn feraiseexcept,globl
__fesetround:
#ifdef __x86_64__
push %rax
xor %eax,%eax
mov %edi,%ecx
@ -71,25 +90,48 @@ __fesetround:
ldmxcsr (%rsp)
pop %rcx
ret
#elif defined(__aarch64__)
mrs x1,fpcr
bic w1,w1,#0xc00000
orr w1,w1,w0
msr fpcr,x1
mov w0,#0
ret
#endif
.endfn __fesetround,globl,hidden
fegetround:
#ifdef __x86_64__
push %rax
stmxcsr (%rsp)
pop %rax
shr $3,%eax
and $0xc00,%eax
ret
#elif defined(__aarch64__)
mrs x0,fpcr
and w0,w0,#0xc00000
ret
#endif
.endfn fegetround,globl
fegetenv:
#ifdef __x86_64__
xor %eax,%eax
fnstenv (%rdi)
stmxcsr 28(%rdi)
ret
#elif defined(__aarch64__)
mrs x1,fpcr
mrs x2,fpsr
stp w1,w2,[x0]
mov w0,#0
ret
#endif
.endfn fegetenv,globl
fesetenv:
#ifdef __x86_64__
xor %eax,%eax
inc %rdi
jz 1f
@ -105,9 +147,21 @@ fesetenv:
ldmxcsr (%rsp)
add $40,%rsp
ret
#elif defined(__aarch64__)
mov x1,#0
mov x2,#0
cmn x0,#1
b.eq 1f
ldp w1,w2,[x0]
1: msr fpcr,x1
msr fpsr,x2
mov w0,#0
ret
#endif
.endfn fesetenv,globl
fetestexcept:
#ifdef __x86_64__
and $0x3f,%edi
push %rax
stmxcsr (%rsp)
@ -116,4 +170,10 @@ fetestexcept:
or %esi,%eax
and %edi,%eax
ret
#elif defined(__aarch64__)
and w0,w0,#0x1f
mrs x1,fpsr
and w0,w0,w1
ret
#endif
.endfn fetestexcept,globl