Revision 5fafdf24 target-arm/nwfpe/fpa11.c
| b/target-arm/nwfpe/fpa11.c | ||
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{
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int i; |
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FPA11 *fpa11 = GET_FPA11(); |
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/* initialize the register type array */ |
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for (i=0;i<=7;i++) |
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{
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fpa11->fType[i] = typeNone; |
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} |
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/* FPSR: set system id to FP_EMULATOR, set AC, clear all other bits */ |
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fpa11->fpsr = FP_EMULATOR | BIT_AC; |
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/* FPCR: set SB, AB and DA bits, clear all others */ |
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#if MAINTAIN_FPCR |
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fpa11->fpcr = MASK_RESET; |
| ... | ... | |
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#if MAINTAIN_FPCR |
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fpa11->fpcr &= ~MASK_ROUNDING_MODE; |
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#endif
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#endif |
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switch (opcode & MASK_ROUNDING_MODE) |
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{
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default: |
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case ROUND_TO_NEAREST: |
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rounding_mode = float_round_nearest_even; |
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#if MAINTAIN_FPCR
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#if MAINTAIN_FPCR |
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fpa11->fpcr |= ROUND_TO_NEAREST; |
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#endif
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#endif |
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break; |
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case ROUND_TO_PLUS_INFINITY: |
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rounding_mode = float_round_up; |
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#if MAINTAIN_FPCR
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#if MAINTAIN_FPCR |
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fpa11->fpcr |= ROUND_TO_PLUS_INFINITY; |
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#endif
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#endif |
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break; |
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case ROUND_TO_MINUS_INFINITY: |
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rounding_mode = float_round_down; |
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#if MAINTAIN_FPCR
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#if MAINTAIN_FPCR |
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fpa11->fpcr |= ROUND_TO_MINUS_INFINITY; |
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#endif
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#endif |
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break; |
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case ROUND_TO_ZERO: |
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rounding_mode = float_round_to_zero; |
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#if MAINTAIN_FPCR
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#if MAINTAIN_FPCR |
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fpa11->fpcr |= ROUND_TO_ZERO; |
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#endif
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#endif |
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break; |
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} |
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set_float_rounding_mode(rounding_mode, &fpa11->fp_status); |
| ... | ... | |
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FPA11 *fpa11 = GET_FPA11(); |
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#if MAINTAIN_FPCR |
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fpa11->fpcr &= ~MASK_ROUNDING_PRECISION; |
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#endif
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#endif |
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switch (opcode & MASK_ROUNDING_PRECISION) |
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{
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case ROUND_SINGLE: |
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rounding_precision = 32; |
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#if MAINTAIN_FPCR
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#if MAINTAIN_FPCR |
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fpa11->fpcr |= ROUND_SINGLE; |
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#endif
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#endif |
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break; |
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case ROUND_DOUBLE: |
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rounding_precision = 64; |
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#if MAINTAIN_FPCR
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#if MAINTAIN_FPCR |
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fpa11->fpcr |= ROUND_DOUBLE; |
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#endif
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#endif |
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break; |
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case ROUND_EXTENDED: |
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rounding_precision = 80; |
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#if MAINTAIN_FPCR
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#if MAINTAIN_FPCR |
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fpa11->fpcr |= ROUND_EXTENDED; |
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#endif
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#endif |
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break; |
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default: rounding_precision = 80; |
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} |
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set_floatx80_rounding_precision(rounding_precision, &fpa11->fp_status); |
| ... | ... | |
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{
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unsigned int nRc = 0; |
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// unsigned long flags; |
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FPA11 *fpa11;
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FPA11 *fpa11; |
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// save_flags(flags); sti(); |
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qemufpa=qfpa; |
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user_registers=qregs; |
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#if 0 |
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fprintf(stderr,"emulating FP insn 0x%08x, PC=0x%08x\n", |
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opcode, qregs[REG_PC]); |
| ... | ... | |
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} |
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} |
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break; |
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case 0xe:
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case 0xe: |
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if (opcode & 0x10) |
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return EmulateCPDO(opcode); |
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else |
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return EmulateCPRT(opcode); |
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break; |
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default: return 0; |
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} |
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} |
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