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Moved the softfloat-enabled ops back to the cpu directory.

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Made softfloat always enabled, thus dynarec disabled, only for the IBM PS/2 model 70 type 4, in preparation for its comeback to main use.
This commit is contained in:
TC1995
2023-04-30 18:18:12 +02:00
parent 7a53e1de45
commit 7c372ca789
10 changed files with 19 additions and 7 deletions
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131
src/cpu/x87_ops_sf_const.h Normal file
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/* A fast way to find out whether x is one of RC_DOWN or RC_CHOP
(and not one of RC_RND or RC_UP).
*/
#define DOWN_OR_CHOP() (fpu_state.cwd & FPU_CW_RC & FPU_RC_DOWN)
static __inline floatx80
FPU_round_const(const floatx80 a, int adj)
{
floatx80 result = a;
result.fraction += adj;
return result;
}
static int
sf_FLDL2T(uint32_t fetchdat)
{
FP_ENTER();
cpu_state.pc++;
clear_C1();
if (!IS_TAG_EMPTY(-1))
FPU_stack_overflow(fetchdat);
else {
FPU_push();
FPU_save_regi(FPU_round_const(Const_L2T, (fpu_state.cwd & FPU_CW_RC) == X87_ROUNDING_UP), 0);
}
CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_const) : (x87_timings.fld_const * cpu_multi));
CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_const) : (x87_concurrency.fld_const * cpu_multi));
return 0;
}
static int
sf_FLDL2E(uint32_t fetchdat)
{
FP_ENTER();
cpu_state.pc++;
clear_C1();
if (!IS_TAG_EMPTY(-1))
FPU_stack_overflow(fetchdat);
else {
FPU_push();
FPU_save_regi(FPU_round_const(Const_L2E, DOWN_OR_CHOP() ? -1 : 0), 0);
}
CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_const) : (x87_timings.fld_const * cpu_multi));
CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_const) : (x87_concurrency.fld_const * cpu_multi));
return 0;
}
static int
sf_FLDPI(uint32_t fetchdat)
{
FP_ENTER();
cpu_state.pc++;
clear_C1();
if (!IS_TAG_EMPTY(-1))
FPU_stack_overflow(fetchdat);
else {
FPU_push();
FPU_save_regi(FPU_round_const(Const_PI, DOWN_OR_CHOP() ? -1 : 0), 0);
}
CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_const) : (x87_timings.fld_const * cpu_multi));
CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_const) : (x87_concurrency.fld_const * cpu_multi));
return 0;
}
static int
sf_FLDEG2(uint32_t fetchdat)
{
FP_ENTER();
cpu_state.pc++;
clear_C1();
if (!IS_TAG_EMPTY(-1))
FPU_stack_overflow(fetchdat);
else {
FPU_push();
FPU_save_regi(FPU_round_const(Const_LG2, DOWN_OR_CHOP() ? -1 : 0), 0);
}
CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_const) : (x87_timings.fld_const * cpu_multi));
CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_const) : (x87_concurrency.fld_const * cpu_multi));
return 0;
}
static int
sf_FLDLN2(uint32_t fetchdat)
{
FP_ENTER();
cpu_state.pc++;
clear_C1();
if (!IS_TAG_EMPTY(-1))
FPU_stack_overflow(fetchdat);
else {
FPU_push();
FPU_save_regi(FPU_round_const(Const_LN2, DOWN_OR_CHOP() ? -1 : 0), 0);
}
CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_const) : (x87_timings.fld_const * cpu_multi));
CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_const) : (x87_concurrency.fld_const * cpu_multi));
return 0;
}
static int
sf_FLD1(uint32_t fetchdat)
{
FP_ENTER();
cpu_state.pc++;
clear_C1();
if (!IS_TAG_EMPTY(-1))
FPU_stack_overflow(fetchdat);
else {
FPU_push();
FPU_save_regi(Const_1, 0);
}
CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_z1) : (x87_timings.fld_z1 * cpu_multi));
CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_z1) : (x87_concurrency.fld_z1 * cpu_multi));
return 0;
}
static int
sf_FLDZ(uint32_t fetchdat)
{
FP_ENTER();
cpu_state.pc++;
clear_C1();
if (!IS_TAG_EMPTY(-1))
FPU_stack_overflow(fetchdat);
else {
FPU_push();
FPU_save_regi(Const_Z, 0);
}
CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_z1) : (x87_timings.fld_z1 * cpu_multi));
CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_z1) : (x87_concurrency.fld_z1 * cpu_multi));
return 0;
}