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filename src/sh4/sh4core.in
changeset 1230:64a91ef571fc
prev1193:dff55bdc4f46
next1231:d63c808ddcd3
author Nathan Keynes <nkeynes@lxdream.org>
date Thu Dec 29 15:41:56 2011 +1000 (9 years ago)
permissions -rw-r--r--
last change Fix emu sign-extension of MULS.W instruction
Change emu FMAC to match translator precision
file annotate diff log raw 
     1.1 --- a/src/sh4/sh4core.in	Mon Dec 12 21:10:04 2011 +1000

     1.2 +++ b/src/sh4/sh4core.in	Thu Dec 29 15:41:56 2011 +1000

     1.3 @@ -723,7 +723,7 @@

     1.4  :}

     1.5  MULS.W Rm, Rn {:

     1.6      sh4r.mac = (sh4r.mac&0xFFFFFFFF00000000LL) |

     1.7 -               (uint32_t)(SIGNEXT32(sh4r.r[Rm]&0xFFFF) * SIGNEXT32(sh4r.r[Rn]&0xFFFF));

     1.8 +               (uint32_t)(SIGNEXT32((int16_t)(sh4r.r[Rm])) * SIGNEXT32((int16_t)(sh4r.r[Rn])));

     1.9  :}

    1.10  NEGC Rm, Rn {:

    1.11      tmp = 0 - sh4r.r[Rm];

    1.12 @@ -1248,7 +1248,7 @@

    1.13      if( IS_FPU_DOUBLEPREC() ) {

    1.14          DR(FRn) += DR(FRm)*DR(0);

    1.15      } else {

    1.16 -	FR(FRn) += FR(FRm)*FR(0);

    1.17 +	FR(FRn) += (double)FR(FRm)*(double)FR(0);

    1.18      }

    1.19  :}

    1.20  FRCHG {:
.