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Annotation of qemu/linux-user/arm/nwfpe/fpa11.inl, revision 1.1.1.2

1.1       root        1: /*
                      2:     NetWinder Floating Point Emulator
                      3:     (c) Rebel.COM, 1998,1999
                      4: 
                      5:     Direct questions, comments to Scott Bambrough <[email protected]>
                      6: 
                      7:     This program is free software; you can redistribute it and/or modify
                      8:     it under the terms of the GNU General Public License as published by
                      9:     the Free Software Foundation; either version 2 of the License, or
                     10:     (at your option) any later version.
                     11: 
                     12:     This program is distributed in the hope that it will be useful,
                     13:     but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     15:     GNU General Public License for more details.
                     16: 
                     17:     You should have received a copy of the GNU General Public License
1.1.1.2 ! root       18:     along with this program; if not, see <http://www.gnu.org/licenses/>.
1.1       root       19: */
                     20: 
                     21: #include "fpa11.h"
                     22: 
                     23: /* Read and write floating point status register */
                     24: static inline unsigned int readFPSR(void)
                     25: {
                     26:   FPA11 *fpa11 = GET_FPA11();
                     27:   return(fpa11->fpsr);
                     28: }
                     29: 
                     30: static inline void writeFPSR(FPSR reg)
                     31: {
                     32:   FPA11 *fpa11 = GET_FPA11();
                     33:   /* the sysid byte in the status register is readonly */
                     34:   fpa11->fpsr = (fpa11->fpsr & MASK_SYSID) | (reg & ~MASK_SYSID);
                     35: }
                     36: 
                     37: /* Read and write floating point control register */
                     38: static inline FPCR readFPCR(void)
                     39: {
                     40:   FPA11 *fpa11 = GET_FPA11();
                     41:   /* clear SB, AB and DA bits before returning FPCR */
                     42:   return(fpa11->fpcr & ~MASK_RFC);
                     43: }
                     44: 
                     45: static inline void writeFPCR(FPCR reg)
                     46: {
                     47:   FPA11 *fpa11 = GET_FPA11();
                     48:   fpa11->fpcr &= ~MASK_WFC;            /* clear SB, AB and DA bits */
                     49:   fpa11->fpcr |= (reg & MASK_WFC);     /* write SB, AB and DA bits */
                     50: }

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