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

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.

src/config.c

@@ -505,6 +505,13 @@ load_machine(void)
 
     cpu_use_dynarec = !!ini_section_get_int(cat, "cpu_use_dynarec", 0);
     fpu_softfloat = !!ini_section_get_int(cat, "fpu_softfloat", 0);
+    /*The IBM PS/2 model 70 type 4 BIOS does heavy tests to the FPU in 80-bit precision mode, requiring softfloat 
+      otherwise it would always throw error 12903 on POST, so always disable dynarec and enable softfloat for this
+      machine only.*/
+    if (!strcmp(machines[machine].internal_name, "ibmps2_m70_type4")) {
+        cpu_use_dynarec = 0;
+        fpu_softfloat = 1;
+    }
 
     p = ini_section_get_string(cat, "time_sync", NULL);
     if (p != NULL) {

src/cpu/x87_ops.h

@@ -481,13 +481,14 @@ typedef union {
 #    define FP_TAG_VALID_N cpu_state.tag[(cpu_state.TOP + 1) & 7] &= ~TAG_UINT64
 #endif
 
-#include "softfloat/x87_ops_arith.h"
+#include "x87_ops_sf_arith.h"
-#include "softfloat/x87_ops_compare.h"
+#include "x87_ops_sf_compare.h"
-#include "softfloat/x87_ops_const.h"
+#include "x87_ops_sf_const.h"
-#include "softfloat/x87_ops_load_store.h"
+#include "x87_ops_sf_load_store.h"
-#include "softfloat/x87_ops_misc.h"
+#include "x87_ops_sf_misc.h"
-#include "softfloat/x87_ops_trans.h"
+#include "x87_ops_sf_trans.h"
-#include "softfloat/x87_ops_other.h"
+#include "x87_ops_sf.h"
+
 #include "x87_ops_arith.h"
 #include "x87_ops_misc.h"
 #include "x87_ops_loadstore.h"

src/qt/qt_settingsmachine.cpp

@@ -106,6 +106,10 @@ SettingsMachine::save()
     fpu_type        = ui->comboBoxFPU->currentData().toInt();
     cpu_use_dynarec = ui->checkBoxDynamicRecompiler->isChecked() ? 1 : 0;
     fpu_softfloat   = (ui->checkBoxFPUSoftfloat->isChecked() && !cpu_use_dynarec) ? 1 : 0;
+    if (!strcmp(machines[machine].internal_name, "ibmps2_m70_type4")) {
+        cpu_use_dynarec = 0;
+        fpu_softfloat = 1;
+    }
 
     int64_t temp_mem_size;
     if (machine_get_ram_granularity(machine) < 1024) {