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fesupprt.c File Reference

#include <stdarg.h>
#include "ki.h"
#include "fedefs.h"
#include <assert.h>
#include <stddef.h>
#include <string.h>
#include "fepublic.h"
#include "fehelper.h"
#include "fesupprt.h"

Go to the source code of this file.

Defines

#define RESTORE_CONSTANTS

Functions

void fp82_default_fp_exception_fault (void *ps, EM_uint_t isrcode)
void fp82_default_fp_exception_trap (void *ps, EM_uint_t isr_code)
void GETSTATE_F1 (EM_pred_reg_specifier Pr0, EM_fp_reg_specifier Fr1, EM_fp_reg_specifier Fr3, EM_fp_reg_specifier Fr4, EM_fp_reg_specifier Fr2)
void PUTSTATE_F1 (EM_fp_reg_specifier Fr1)
void GETSTATE_F4 (EM_pred_reg_specifier Pr0, EM_pred_reg_specifier Pr1, EM_pred_reg_specifier Pr2, EM_fp_reg_specifier Fr2, EM_fp_reg_specifier Fr3)
void PUTSTATE_F4 (EM_pred_reg_specifier Pr1, EM_pred_reg_specifier Pr2)
void GETSTATE_F6 (EM_pred_reg_specifier Pr0, EM_fp_reg_specifier Fr1, EM_pred_reg_specifier Pr2, EM_fp_reg_specifier Fr2, EM_fp_reg_specifier Fr3)
void PUTSTATE_F6 (EM_fp_reg_specifier Fr1, EM_pred_reg_specifier Pr2)
void GETSTATE_F7 (EM_pred_reg_specifier Pr0, EM_fp_reg_specifier Fr1, EM_pred_reg_specifier Pr2, EM_fp_reg_specifier Fr3)
void PUTSTATE_F7 (EM_fp_reg_specifier Fr1, EM_pred_reg_specifier Pr2)
void GETSTATE_F8 (EM_pred_reg_specifier Pr0, EM_fp_reg_specifier Fr1, EM_fp_reg_specifier Fr2, EM_fp_reg_specifier Fr3)
void PUTSTATE_F8 (EM_fp_reg_specifier Fr1)
void GETSTATE_F10 (EM_pred_reg_specifier Pr0, EM_fp_reg_specifier Fr1, EM_fp_reg_specifier Fr2)
void PUTSTATE_F10 (EM_fp_reg_specifier Fr1)
void fp82_EM_initialize_state (EM_state_type *ps)
EM_boolean_t fp82_fp_software_assistance_required (EM_state_type *ps, EM_opcode_type calling_instruction,...)
INLINE void disabled_fp_register_fault (EM_uint_t isr_code, EM_uint_t itype)
INLINE void fp_exception_fault (EM_uint_t isr_code)
INLINE void fp_exception_trap (EM_uint_t isr_code)
INLINE void illegal_operation_fault (EM_uint_t non_rs)
INLINE void check_target_register (EM_uint_t reg_specifier, EM_uint_t itype)
void fp_check_target_register (EM_uint_t reg_specifier)
INLINE void reserved_register_field_fault (EM_uint_t val)

Define Documentation

#define RESTORE_CONSTANTS
 

Value:

{                   \
   FR[0]       = FP_ZERO;                     \
   FR[1]       = FP_ONE;                      \
   PR[0]       = 1;                           \
   GR[0].value = 0;                           \
   GR[0].nat   = 0;                           \
}

Definition at line 33 of file fesupprt.c.

Referenced by PUTSTATE_F1(), PUTSTATE_F10(), PUTSTATE_F4(), PUTSTATE_F6(), PUTSTATE_F7(), and PUTSTATE_F8().

Function Documentation

INLINE void check_target_register (  EM_uint_t  reg_specifier,
EM_uint_t  itype
) 
 

Definition at line 332 of file fesupprt.c.

References exit, and FP_EMULATION_ERROR0. 

00333 {
00334   if(reg_specifier == 0) {
00335 #ifdef IN_KERNEL
00336     FP_EMULATION_ERROR0 ("fp_check_target_register () Internal Error\n");
00337 #else
00338     printf ("fp_check_target_register () Internal Error\n");
00339     exit (1);
00340 #endif
00341   }
00342 }

INLINE void disabled_fp_register_fault (  EM_uint_t  isr_code,
EM_uint_t  itype
) 
 

Definition at line 284 of file fesupprt.c.

References exit, and FP_EMULATION_ERROR0. 

00285 {
00286 #ifdef IN_KERNEL
00287     FP_EMULATION_ERROR0 ("disabled_fp_register_fault () Internal Error\n");
00288 #else
00289     printf ("disabled_fp_register_fault () Internal Error\n");
00290     exit (1);
00291 #endif
00292 }

void fp82_default_fp_exception_fault (  void *  ps,
EM_uint_t  isrcode
) 
 

Definition at line 163 of file fesupprt.c.

References EM_state_struct::state_MERCED_RTL, and EM_state_struct::trap_type.

Referenced by fp82_EM_initialize_state(). 

00163                                                                     {
00164 EM_state_type *ps;
00165    ps = (EM_state_type *)vps;
00166    ps->state_MERCED_RTL &= ~0xffff0000;
00167    ps->state_MERCED_RTL |= (isr_code << 16);
00168    ps->trap_type = 1; // fault
00169 }

void fp82_default_fp_exception_trap (  void *  ps,
EM_uint_t  isr_code
) 
 

Definition at line 172 of file fesupprt.c.

References EM_state_struct::state_MERCED_RTL, and EM_state_struct::trap_type.

Referenced by fp82_EM_initialize_state(). 

00172                                                                    {
00173 EM_state_type *ps;
00174    ps = (EM_state_type *)vps;
00175    ps->state_MERCED_RTL &= ~0xffff0000;
00176    ps->state_MERCED_RTL |= (isr_code << 16);
00177    ps->trap_type = 0; // trap
00178 }

void fp82_EM_initialize_state (  EM_state_type *  ps  ) 
 

Definition at line 185 of file fesupprt.c.

References EM_int_t, EM_NUM_PR, fp82_default_fp_exception_fault(), fp82_default_fp_exception_trap(), FPSR, FR, GR, MAX_REAL_FR_INDEX, MAX_REAL_GR_INDEX, PR, PSR, rc_rn, sf_double_extended, EM_state_struct::state_fp82_fp_exception_fault, EM_state_struct::state_fp82_fp_exception_trap, and EM_state_struct::state_MERCED_RTL. 

00185                                             {
00186     EM_int_t i;
00187 
00188     PSR.be                = 0;
00189     PSR.dfl               = 0;
00190     PSR.dfh               = 0;
00191     PSR.mfl               = 0;
00192     PSR.mfh               = 0;
00193 
00194     FPSR.traps_vd         = 1;
00195     FPSR.traps_dd         = 1;
00196     FPSR.traps_zd         = 1;
00197     FPSR.traps_od         = 1;
00198     FPSR.traps_ud         = 1;
00199     FPSR.traps_id         = 1;
00200 
00201     FPSR.sf0_controls_ftz = 0;
00202     FPSR.sf0_controls_wre = 1;
00203     FPSR.sf0_controls_pc  = sf_double_extended;
00204     FPSR.sf0_controls_rc  = rc_rn;
00205     FPSR.sf0_controls_td  = 0;
00206     FPSR.sf0_flags_v      = 0;
00207     FPSR.sf0_flags_d      = 0;
00208     FPSR.sf0_flags_z      = 0;
00209     FPSR.sf0_flags_o      = 0;
00210     FPSR.sf0_flags_u      = 0;
00211     FPSR.sf0_flags_i      = 0;
00212  
00213     FPSR.sf1_controls_ftz = 0;
00214     FPSR.sf1_controls_wre = 1;
00215     FPSR.sf1_controls_pc  = sf_double_extended;
00216     FPSR.sf1_controls_rc  = rc_rn;
00217     FPSR.sf1_controls_td  = 0;
00218     FPSR.sf1_flags_v      = 0;
00219     FPSR.sf1_flags_d      = 0;
00220     FPSR.sf1_flags_z      = 0;
00221     FPSR.sf1_flags_o      = 0;
00222     FPSR.sf1_flags_u      = 0;
00223     FPSR.sf1_flags_i      = 0;
00224 
00225     FPSR.sf2_controls_ftz = 0;
00226     FPSR.sf2_controls_wre = 1;
00227     FPSR.sf2_controls_pc  = sf_double_extended;
00228     FPSR.sf2_controls_rc  = rc_rn;
00229     FPSR.sf2_controls_td  = 0;
00230     FPSR.sf2_flags_v      = 0;
00231     FPSR.sf2_flags_d      = 0;
00232     FPSR.sf2_flags_z      = 0;
00233     FPSR.sf2_flags_o      = 0;
00234     FPSR.sf2_flags_u      = 0;
00235     FPSR.sf2_flags_i      = 0;
00236 
00237     FPSR.sf3_controls_ftz = 0;
00238     FPSR.sf3_controls_wre = 1;
00239     FPSR.sf3_controls_pc  = sf_double_extended;
00240     FPSR.sf3_controls_rc  = rc_rn;
00241     FPSR.sf3_controls_td  = 0;
00242     FPSR.sf3_flags_v      = 0;
00243     FPSR.sf3_flags_d      = 0;
00244     FPSR.sf3_flags_z      = 0;
00245     FPSR.sf3_flags_o      = 0;
00246     FPSR.sf3_flags_u      = 0;
00247     FPSR.sf3_flags_i      = 0;
00248     FPSR.reserved         = 0;
00249 
00250     PR[0] = 1;
00251     for (i=1;i<EM_NUM_PR;i++)
00252         PR[i] = 0;
00253 
00254     ps->state_MERCED_RTL = 0;
00255 
00256     FR[0] = FP_ZERO;
00257     FR[1] = FP_ONE;
00258 
00259     for (i=2;i<MAX_REAL_FR_INDEX;i++)
00260         FR[i] = FP_ZERO;
00261 
00262     for (i=0;i<MAX_REAL_GR_INDEX;i++) {
00263         GR[i].value = 0;
00264         GR[i].nat   = 0;
00265     }
00266 
00267     ps->state_fp82_fp_exception_fault = fp82_default_fp_exception_fault;
00268     ps->state_fp82_fp_exception_trap = fp82_default_fp_exception_trap;
00269 }

EM_boolean_t fp82_fp_software_assistance_required (  EM_state_type *  ps,
EM_opcode_type  calling_instruction,
  ...
) 
 

Definition at line 275 of file fesupprt.c. 

00277 {
00278     return(0);
00279 }

void fp_check_target_register (  EM_uint_t  reg_specifier  ) 
 

Definition at line 345 of file fesupprt.c.

References exit, and FP_EMULATION_ERROR0. 

00346 {
00347   if( (reg_specifier == 0) || (reg_specifier == 1) ){
00348 #ifdef IN_KERNEL
00349     FP_EMULATION_ERROR0 ("fp_check_target_register () Internal Error\n")
00350 #else
00351     printf ("fp_check_target_register () Internal Error\n");
00352     exit (1);
00353 #endif
00354   }
00355 }

INLINE void fp_exception_fault (  EM_uint_t  isr_code  ) 
 

Definition at line 296 of file fesupprt.c.

References FR, GR, and PR. 

00297 {
00298 
00299     PR[0]       = 1;
00300     GR[0].value = 0;
00301     GR[0].nat   = 0;
00302     FR[0]       = FP_ZERO;
00303     FR[1]       = FP_ONE;
00304 
00305     ps->state_fp82_fp_exception_fault((EM_state_type *)ps, isr_code);
00306 
00307 }

INLINE void fp_exception_trap (  EM_uint_t  isr_code  ) 
 

Definition at line 310 of file fesupprt.c. 

00311 {
00312 
00313     isr_code |= 0x00000001;
00314 
00315     ps->state_fp82_fp_exception_trap((EM_state_type *)ps, isr_code);
00316 
00317 }

void GETSTATE_F1 (  EM_pred_reg_specifier  Pr0,
EM_fp_reg_specifier  Fr1,
EM_fp_reg_specifier  Fr3,
EM_fp_reg_specifier  Fr4,
EM_fp_reg_specifier  Fr2
) 
 

Definition at line 46 of file fesupprt.c. 

00051                                {
00052 
00053 }

void GETSTATE_F10 (  EM_pred_reg_specifier  Pr0,
EM_fp_reg_specifier  Fr1,
EM_fp_reg_specifier  Fr2
) 
 

Definition at line 145 of file fesupprt.c.

References SIGNED_FORM, TRUNC_FORM, and UNSIGNED_FORM. 

00148                                {
00149 
00150     SIGNED_FORM   = 0;
00151     TRUNC_FORM    = 0;
00152     UNSIGNED_FORM = 0;
00153 }

void GETSTATE_F4 (  EM_pred_reg_specifier  Pr0,
EM_pred_reg_specifier  Pr1,
EM_pred_reg_specifier  Pr2,
EM_fp_reg_specifier  Fr2,
EM_fp_reg_specifier  Fr3
) 
 

Definition at line 66 of file fesupprt.c. 

00071                                {
00072 }

void GETSTATE_F6 (  EM_pred_reg_specifier  Pr0,
EM_fp_reg_specifier  Fr1,
EM_pred_reg_specifier  Pr2,
EM_fp_reg_specifier  Fr2,
EM_fp_reg_specifier  Fr3
) 
 

Definition at line 86 of file fesupprt.c. 

00091                                {
00092 }

void GETSTATE_F7 (  EM_pred_reg_specifier  Pr0,
EM_fp_reg_specifier  Fr1,
EM_pred_reg_specifier  Pr2,
EM_fp_reg_specifier  Fr3
) 
 

Definition at line 107 of file fesupprt.c. 

00111                                {
00112 }

void GETSTATE_F8 (  EM_pred_reg_specifier  Pr0,
EM_fp_reg_specifier  Fr1,
EM_fp_reg_specifier  Fr2,
EM_fp_reg_specifier  Fr3
) 
 

Definition at line 127 of file fesupprt.c. 

00131                                {
00132 }

INLINE void illegal_operation_fault (  EM_uint_t  non_rs  ) 
 

Definition at line 321 of file fesupprt.c.

References exit, and FP_EMULATION_ERROR0. 

00322 {
00323 #ifdef IN_KERNEL
00324     FP_EMULATION_ERROR0 ("illegal_operation_fault () Internal Error\n");
00325 #else
00326     printf ("illegal_operation_fault () Internal Error\n");
00327     exit (1);
00328 #endif
00329 }

void PUTSTATE_F1 (  EM_fp_reg_specifier  Fr1  ) 
 

Definition at line 56 of file fesupprt.c.

References RESTORE_CONSTANTS. 

00057                             {
00058 
00059    RESTORE_CONSTANTS;                   
00060 }

void PUTSTATE_F10 (  EM_fp_reg_specifier  Fr1  ) 
 

Definition at line 156 of file fesupprt.c.

References RESTORE_CONSTANTS. 

00157                                {
00158 
00159    RESTORE_CONSTANTS;      
00160 }

void PUTSTATE_F4 (  EM_pred_reg_specifier  Pr1,
EM_pred_reg_specifier  Pr2
) 
 

Definition at line 75 of file fesupprt.c.

References RESTORE_CONSTANTS. 

00077                               {
00078 
00079     RESTORE_CONSTANTS;                   
00080 }

void PUTSTATE_F6 (  EM_fp_reg_specifier  Fr1,
EM_pred_reg_specifier  Pr2
) 
 

Definition at line 95 of file fesupprt.c.

References RESTORE_CONSTANTS. 

00097                               {
00098 
00099     RESTORE_CONSTANTS;                   
00100 }

void PUTSTATE_F7 (  EM_fp_reg_specifier  Fr1,
EM_pred_reg_specifier  Pr2
) 
 

Definition at line 116 of file fesupprt.c.

References RESTORE_CONSTANTS. 

00118                               {
00119 
00120     RESTORE_CONSTANTS;                   
00121 }

void PUTSTATE_F8 (  EM_fp_reg_specifier  Fr1  ) 
 

Definition at line 135 of file fesupprt.c.

References RESTORE_CONSTANTS. 

00136                               {
00137 
00138    RESTORE_CONSTANTS;                   
00139 }

INLINE void reserved_register_field_fault (  EM_uint_t  val  ) 
 

Definition at line 359 of file fesupprt.c.

References exit, and FP_EMULATION_ERROR0. 

00360 {
00361 #ifdef IN_KERNEL
00362     FP_EMULATION_ERROR0 ("reserved_register_field_fault () Internal Error\n")
00363 #else
00364     printf ("reserved_register_field_fault () Internal Error\n");
00365     exit (1);
00366 #endif
00367 }

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