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Limit cycle_counter when paging is off

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This change simplifies the code, and we don't care about the lost
performance when paging is off.
This commit is contained in:
Fabian 2018-07-12 17:58:01 -06:00
parent e5fca784fc
commit e6457a319f
1 changed files with 19 additions and 83 deletions
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102
src/native/string.c
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@ -48,13 +48,9 @@ void movsb_rep()
if(count == 0) return;
int32_t cont = false;
int32_t start_count = count;
int32_t cycle_counter = MAX_COUNT_PER_CYCLE;
int32_t cycle_counter = string_get_cycle_count2(size, src, dest);
int32_t phys_src = translate_address_read(src);
int32_t phys_dest = translate_address_write(dest);
if(*paging)
{
cycle_counter = string_get_cycle_count2(size, src, dest);
}
do
{
write8(phys_dest, read8(phys_src));
@ -101,10 +97,7 @@ void movsw_rep()
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_src = translate_address_read(src) >> 1;
int32_t phys_dest = translate_address_write(dest) >> 1;
if(*paging)
{
cycle_counter = string_get_cycle_count2(size, src, dest);
}
cycle_counter = string_get_cycle_count2(size, src, dest);
do
{
write_aligned16(phys_dest, read_aligned16(phys_src));
@ -165,10 +158,7 @@ void movsd_rep()
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_src = translate_address_read(src) >> 2;
int32_t phys_dest = translate_address_write(dest) >> 2;
if(*paging)
{
cycle_counter = string_get_cycle_count2(size, src, dest);
}
cycle_counter = string_get_cycle_count2(size, src, dest);
do
{
write_aligned32(phys_dest, read_aligned32(phys_src));
@ -225,13 +215,9 @@ void cmpsb_rep(int32_t prefix_flag)
int32_t cont = false;
int32_t start_count = count;
int32_t is_repz = prefix_flag == PREFIX_REPZ;
int32_t cycle_counter = MAX_COUNT_PER_CYCLE;
int32_t cycle_counter = string_get_cycle_count2(size, src, dest);
int32_t phys_src = translate_address_read(src);
int32_t phys_dest = translate_address_read(dest);
if(*paging)
{
cycle_counter = string_get_cycle_count2(size, src, dest);
}
do
{
data_dest = read8(phys_dest);
@ -287,10 +273,7 @@ void cmpsw_rep(int32_t prefix_flag)
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_src = translate_address_read(src) >> 1;
int32_t phys_dest = translate_address_read(dest) >> 1;
if(*paging)
{
cycle_counter = string_get_cycle_count2(size, src, dest);
}
cycle_counter = string_get_cycle_count2(size, src, dest);
do
{
data_dest = read_aligned16(phys_dest);
@ -361,10 +344,7 @@ void cmpsd_rep(int32_t prefix_flag)
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_src = translate_address_read(src) >> 2;
int32_t phys_dest = translate_address_read(dest) >> 2;
if(*paging)
{
cycle_counter = string_get_cycle_count2(size, src, dest);
}
cycle_counter = string_get_cycle_count2(size, src, dest);
do
{
data_dest = read_aligned32(phys_dest);
@ -427,12 +407,8 @@ void stosb_rep()
if(count == 0) return;
int32_t cont = false;
int32_t start_count = count;
int32_t cycle_counter = MAX_COUNT_PER_CYCLE;
int32_t cycle_counter = string_get_cycle_count(size, dest);
int32_t phys_dest = translate_address_write(dest);
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
do
{
write8(phys_dest, data);
@ -475,10 +451,7 @@ void stosw_rep()
{
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_dest = translate_address_write(dest) >> 1;
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
cycle_counter = string_get_cycle_count(size, dest);
do
{
write_aligned16(phys_dest, data);
@ -533,10 +506,7 @@ void stosd_rep()
{
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_dest = translate_address_write(dest) >> 2;
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
cycle_counter = string_get_cycle_count(size, dest);
do
{
write_aligned32(phys_dest, data);
@ -584,12 +554,8 @@ void lodsb_rep()
if(count == 0) return;
int32_t cont = false;
int32_t start_count = count;
int32_t cycle_counter = MAX_COUNT_PER_CYCLE;
int32_t cycle_counter = string_get_cycle_count(size, src);
int32_t phys_src = translate_address_read(src);
if(*paging)
{
cycle_counter = string_get_cycle_count(size, src);
}
do
{
reg8[AL] = read8(phys_src);
@ -692,12 +658,8 @@ void scasb_rep(int32_t prefix_flag)
int32_t cont = false;
int32_t start_count = count;
int32_t is_repz = prefix_flag == PREFIX_REPZ;
int32_t cycle_counter = MAX_COUNT_PER_CYCLE;
int32_t cycle_counter = string_get_cycle_count(size, dest);
int32_t phys_dest = translate_address_read(dest);
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
do
{
data_dest = read8(phys_dest);
@ -745,10 +707,7 @@ void scasw_rep(int32_t prefix_flag)
{
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_dest = translate_address_read(dest) >> 1;
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
cycle_counter = string_get_cycle_count(size, dest);
do
{
data_dest = read_aligned16(phys_dest);
@ -808,10 +767,7 @@ void scasd_rep(int32_t prefix_flag)
{
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_dest = translate_address_read(dest) >> 2;
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
cycle_counter = string_get_cycle_count(size, dest);
do
{
data_dest = read_aligned32(phys_dest);
@ -867,12 +823,8 @@ void insb_rep()
if(count == 0) return;
int32_t cont = false;
int32_t start_count = count;
int32_t cycle_counter = MAX_COUNT_PER_CYCLE;
int32_t cycle_counter = string_get_cycle_count(size, dest);
int32_t phys_dest = translate_address_write(dest);
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
do
{
write8(phys_dest, io_port_read8(port));
@ -920,10 +872,7 @@ void insw_rep()
{
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_dest = translate_address_write(dest) >> 1;
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
cycle_counter = string_get_cycle_count(size, dest);
do
{
write_aligned16(phys_dest, io_port_read16(port));
@ -984,10 +933,7 @@ void insd_rep()
{
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_dest = translate_address_write(dest) >> 2;
if(*paging)
{
cycle_counter = string_get_cycle_count(size, dest);
}
cycle_counter = string_get_cycle_count(size, dest);
do
{
write_aligned32(phys_dest, io_port_read32(port));
@ -1043,12 +989,8 @@ void outsb_rep()
if(count == 0) return;
int32_t cont = false;
int32_t start_count = count;
int32_t cycle_counter = MAX_COUNT_PER_CYCLE;
int32_t cycle_counter = string_get_cycle_count(size, src);
int32_t phys_src = translate_address_read(src);
if(*paging)
{
cycle_counter = string_get_cycle_count(size, src);
}
do
{
io_port_write8(port, read8(phys_src));
@ -1096,10 +1038,7 @@ void outsw_rep()
{
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_src = translate_address_read(src) >> 1;
if(*paging)
{
cycle_counter = string_get_cycle_count(size, src);
}
cycle_counter = string_get_cycle_count(size, src);
do
{
io_port_write16(port, read_aligned16(phys_src));
@ -1158,10 +1097,7 @@ void outsd_rep()
{
int32_t single_size = size < 0 ? -1 : 1;
int32_t phys_src = translate_address_read(src) >> 2;
if(*paging)
{
cycle_counter = string_get_cycle_count(size, src);
}
cycle_counter = string_get_cycle_count(size, src);
do
{
io_port_write32(port, read_aligned32(phys_src));