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Better fix for the P6 timings.

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This commit is contained in:
OBattler
2020-04-25 22:14:43 +02:00
parent 6033f4480c
commit 20cf306d44
2 changed files with 8 additions and 8 deletions
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8
src/cpu/codegen_timing_p6.c
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@@ -1709,11 +1709,11 @@ static int uop_run(const risc86_uop_t *uop, int decode_time)
static struct
{
int nr_uops;
const risc86_uop_t *uops[MAX_UOPS];
const risc86_uop_t *uops[6];
/*Earliest time a uop can start. If the timestamp is -1, then the uop is
part of a dependency chain and the start time is the completion time of
the previous uop*/
int earliest_start[MAX_UOPS];
int earliest_start[6];
} decode_buffer;
#define NR_OPSEQS 3
@@ -1904,10 +1904,10 @@ static void decode_instruction(const risc86_instruction_t *ins, uint64_t deps, u
for (c = 0; c < ins->nr_uops; c++)
{
decode_buffer.uops[d] = &ins->uop[c];
decode_buffer.earliest_start[c] = earliest_start;
decode_buffer.earliest_start[d] = earliest_start;
d++;
if (d == 3 && ins->nr_uops > 4) /*Ins. with >4 uOPs require the use of special units only present on 3 translate PLAs*/
if ((d == 3) && (ins->nr_uops > 4)) /*Ins. with >4 uOPs require the use of special units only present on 3 translate PLAs*/
{
d = 0;
decode_buffer.nr_uops = 3;

8
src/cpu_new/codegen_timing_p6.c
View File

@@ -1706,11 +1706,11 @@ static int uop_run(const risc86_uop_t *uop, int decode_time)
static struct
{
int nr_uops;
const risc86_uop_t *uops[MAX_UOPS];
const risc86_uop_t *uops[6];
/*Earliest time a uop can start. If the timestamp is -1, then the uop is
part of a dependency chain and the start time is the completion time of
the previous uop*/
int earliest_start[MAX_UOPS];
int earliest_start[6];
} decode_buffer;
#define NR_OPSEQS 3
@@ -1901,10 +1901,10 @@ static void decode_instruction(const risc86_instruction_t *ins, uint64_t deps, u
for (c = 0; c < ins->nr_uops; c++)
{
decode_buffer.uops[d] = &ins->uop[c];
decode_buffer.earliest_start[c] = earliest_start;
decode_buffer.earliest_start[d] = earliest_start;
d++;
if (d == 3 && ins->nr_uops > 4) /*Ins. with >4 uOPs require the use of special units only present on 3 translate PLAs*/
if ((d == 3) && (ins->nr_uops > 4)) /*Ins. with >4 uOPs require the use of special units only present on 3 translate PLAs*/
{
d = 0;
decode_buffer.nr_uops = 3;