diff options
Diffstat (limited to 'sim')
| -rw-r--r-- | sim/sh/ChangeLog | 8 | ||||
| -rw-r--r-- | sim/sh/gencode.c | 8 |
2 files changed, 12 insertions, 4 deletions
diff --git a/sim/sh/ChangeLog b/sim/sh/ChangeLog index 11eee59..d63066e 100644 --- a/sim/sh/ChangeLog +++ b/sim/sh/ChangeLog @@ -1,7 +1,15 @@ +Wed Nov 29 12:39:27 1995 Jim Wilson <wilson@chestnut.cygnus.com> + + * gencode.c (tab): In shad/shld definitions, negate R[m] before + the and operation instead of after. For shad delete cast. For shld + use UR instead of R and delete cast. + +start-sanitize-sh3e Fri Nov 17 12:48:55 1995 Jim Wilson <wilson@chestnut.cygnus.com> * gencode.c (tab): Add explicit NaN support for ftrc instruction. +end-sanitize-sh3e Wed Nov 15 11:25:27 1995 Stu Grossman (grossman@cygnus.com) * interp.c: Make target_byte_order be extern to prevent SGI cc from diff --git a/sim/sh/gencode.c b/sim/sh/gencode.c index 7c7f426..acba02a 100644 --- a/sim/sh/gencode.c +++ b/sim/sh/gencode.c @@ -149,12 +149,12 @@ op tab[] = {"n","n","rotr <REG_N>", "0100nnnn00000101", "T=R[n]&1;R[n] = UR[n]>> 1;R[n]|=(T<<31);"}, {"","","rte", "0000000000101011", "{ int tmp = PC; PC=RLAT(R[15])+2;R[15]+=4;SET_SR(RLAT(R[15]) & 0x3f3);R[15]+=4;SL(tmp+2);}"}, - {"","","rts", "0000000000001011", "ult=PC;PC=PR;SL(ult+2);"}, + {"","","rts", "0000000000001011", "ult=PC;PC=PR-2;SL(ult+2);"}, {"","","sett", "0000000000011000", "T=1;"}, {"n","mn","shad <REG_M>,<REG_N>", "0100nnnnmmmm1100", - "R[n] = (R[m] < 0) ? (((int)R[n]) >> -(R[m]&0x1f) ): (R[n] << ((R[m]) & 0x1f)) ;"}, + "R[n] = (R[m] < 0) ? (R[n] >> ((-R[m])&0x1f)) : (R[n] << (R[m] & 0x1f));"}, {"n","mn","shld <REG_M>,<REG_N>", "0100nnnnmmmm1101", - "R[n] = (R[m] < 0) ? (((unsigned int)R[n]) >> -(R[m]&0x1f) ): (R[n] << ((R[m]) & 0x1f)) ;"}, + "R[n] = (R[m] < 0) ? (UR[n] >> ((-R[m])&0x1f)): (R[n] << (R[m] & 0x1f));"}, {"n","n","shal <REG_N>", "0100nnnn00100000", "T=R[n]<0; R[n]<<=1;"}, {"n","n","shar <REG_N>", "0100nnnn00100001", "T=R[n]&1; R[n] = R[n] >> 1;"}, {"n","n","shll <REG_N>", "0100nnnn00000000", "T=R[n]<0; R[n]<<=1;"}, @@ -227,7 +227,7 @@ op tab[] = {"", "", "fabs <FREG_N>", "1111nnnn01011101", "F[n] = fabs (F[n]);"}, {"", "", "fsqrt <FREG_N>", "1111nnnn01101101", "F[n] = sqrt (F[n]);"}, {"", "", "float FPUL,<FREG_N>", "1111nnnn00101101", "F[n] = (float)FPUL;"}, - {"", "", "ftrc <FREG_N>, FPUL", "1111nnnn00111101", "FPUL = (int)F[n];"}, + {"", "", "ftrc <FREG_N>, FPUL", "1111nnnn00111101", "if (F[n] != F[n]) /* NaN */ FPUL = 0x80000000; else FPUL = (int)F[n];"}, {"", "", "ftst/nan <FREG_N>", "1111nnnn01111101", "T = isnan (F[n]);"}, {"", "", "fsts FPUL,<FREG_N>", "1111nnnn00001101", "*(int *)buf = FPUL; F[n] = *(float *)buf;"}, {"", "", "flds <FREG_N>,FPUL", "1111nnnn00011101", "*(float *)buf = F[n]; FPUL = *(int *)buf;"}, |