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fixed mul, fixed register pref

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This commit is contained in:
Nikolay Volf 2016-02-25 16:20:57 +03:00
parent ae76a509dc
commit f17d893f53
1 changed files with 93 additions and 66 deletions
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157
util/src/uint.rs
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@ -99,15 +99,15 @@ macro_rules! uint_overflowing_add {
let overflow: u8;
unsafe {
asm!("
adc $9, %r8
adc $10, %r9
adc $11, %r10
adc $12, %r11
adc $9, $0
adc $10, $1
adc $11, $2
adc $12, $3
setc %al
"
: "={r8}"(result[0]), "={r9}"(result[1]), "={r10}"(result[2]), "={r11}"(result[3]), "={al}"(overflow)
: "{r8}"(self_t[0]), "{r9}"(self_t[1]), "{r10}"(self_t[2]), "{r11}"(self_t[3]),
"m"(other_t[0]), "m"(other_t[1]), "m"(other_t[2]), "m"(other_t[3])
: "=r"(result[0]), "=r"(result[1]), "=r"(result[2]), "=r"(result[3]), "={al}"(overflow)
: "0"(self_t[0]), "1"(self_t[1]), "2"(self_t[2]), "3"(self_t[3]),
"mr"(other_t[0]), "mr"(other_t[1]), "mr"(other_t[2]), "mr"(other_t[3])
:
:
);
@ -138,10 +138,10 @@ macro_rules! uint_overflowing_sub {
let overflow: u8;
unsafe {
asm!("
sbb $9, %r8
sbb $10, %r9
sbb $11, %r10
sbb $12, %r11
sbb $9, $0
sbb $10, $1
sbb $11, $2
sbb $12, $3
setb %al"
: "=r"(result[0]), "=r"(result[1]), "=r"(result[2]), "=r"(result[3]), "={al}"(overflow)
: "0"(self_t[0]), "1"(self_t[1]), "2"(self_t[2]), "3"(self_t[3]), "mr"(other_t[0]), "mr"(other_t[1]), "mr"(other_t[2]), "mr"(other_t[3])
@ -168,76 +168,103 @@ macro_rules! uint_overflowing_mul {
let overflow: u8;
unsafe {
asm!("
clc
mov $5, %rax
mulq $9
mov %rax, %r8
adc $6, %rdx
pushf
mov %rax, $0
mov %rdx, $1
mov %rdx, %rax
mov $6, %rax
mulq $9
clc
adc %rax, $1
mov %rdx, $2
mov $5, %rax
pushf
mulq $10
popf
adc %rax, $1
adc %rdx, $2
mov $6, %rax
mulq $10
clc
adc %rax, $2
mov %rdx, $3
mov $7, %rax
mulq $9
clc
adc %rax, $2
adc %rdx, $3
mov $5, %rax
mulq $11
clc
adc %rax, $2
adc %rdx, $3
mov $8, %rax
pushf
mulq $9
popf
adc $$0, %rax
adc $7, %rdx
pushf
mov %rax, %r9
mov %rdx, %rax
mulq $9
popf
adc $$0, %rax
adc $8, %rdx
pushf
mov %rax, %r10
mov %rdx, %rax
mulq $9
popf
adc $$0, %rax
mov %rax, %r11
adc %rax, $3
adc $$0, %rdx
mov %rdx, %rcx
clc
mov $5, %rax
mulq $10
adc %rax, %r9
adc $6, %rdx
mov $7, %rax
pushf
mov %rdx, %rax
mulq $10
popf
adc %rax, %r10
adc $7, %rdx
pushf
mov %rdx, %rax
mulq $10
popf
adc %rax, %r11
pushf
or %rax, %rcx
mov $5, %rax
mulq $11
popf
adc %rax, %r10
adc $6, %rdx
pushf
mov %rdx, %rax
mulq $11
popf
adc %rax, %r11
pushf
adc %rax, $3
adc $$0, %rdx
or %rdx, %rcx
clc
mov $6, %rax
pushf
mulq $11
popf
adc %rax, $3
adc $$0, %rdx
or %rdx, %rcx
clc
mov $5, %rax
pushf
mulq $12
popf
adc %rax, %r11
adc %rax, $3
adc $$0, %rdx
or %rdx, %rcx
"
clc
cmpq $$0, %rcx
jne 2f
mov $8, %rax
cmpq $$0, %rax
setz %cl
mov $7, %rax
cmpq $$0, %rax
sete %dl
or %dl, %cl
mov $3, %rax
cmpq $$0, %rax
sete %dl
mov $2, %rax
cmpq $$0, %rax
sete %bl
or %bl, %dl
and %dl, %cl
2: "
: /* $0 */ "={r8}"(result[0]), /* $1 */ "={r9}"(result[1]), /* $2 */ "={r10}"(result[2]),
/* $3 */ "={r11}"(result[3]), /* $4 */ "={rcx}"(overflow)