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* 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.
This commit is contained in:
Jim Wilson 1995-11-29 20:41:46 +00:00
parent 3dbf33eeb4
commit 9dfb65e661
2 changed files with 12 additions and 4 deletions
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8
sim/sh/ChangeLog
View File

@ -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

8
sim/sh/gencode.c
View File

@ -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;"},