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Implement new floating-point instructions (fre, frin, friz, frip, frim)

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as defined in the PowerPC 2.04 specification.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3281 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-09-30 01:11:48 +00:00
parent 477023a603
commit d7e4b87e53
4 changed files with 106 additions and 0 deletions
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14
target-ppc/translate.c
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@ -476,6 +476,8 @@ enum {
PPC_RFMCI = 0x0000020000000000ULL,
/* user-mode DCR access, implemented in PowerPC 460 */
PPC_DCRUX = 0x0000040000000000ULL,
/* New floating-point extensions (PowerPC 2.0x) */
PPC_FLOAT_EXT = 0x0000080000000000ULL,
};
/*****************************************************************************/
@ -1660,6 +1662,9 @@ GEN_FLOAT_AB(div, 0x12, 0x000007C0);
/* fmul - fmuls */
GEN_FLOAT_AC(mul, 0x19, 0x0000F800);
/* fre */
GEN_FLOAT_BS(re, 0x3F, 0x18, PPC_FLOAT_EXT);
/* fres */
GEN_FLOAT_BS(res, 0x3B, 0x18, PPC_FLOAT_FRES);
@ -1727,6 +1732,15 @@ GEN_FLOAT_B(ctid, 0x0E, 0x19, PPC_64B);
GEN_FLOAT_B(ctidz, 0x0F, 0x19, PPC_64B);
#endif
/* frin */
GEN_FLOAT_B(rin, 0x08, 0x0C, PPC_FLOAT_EXT);
/* friz */
GEN_FLOAT_B(riz, 0x08, 0x0D, PPC_FLOAT_EXT);
/* frip */
GEN_FLOAT_B(rip, 0x08, 0x0E, PPC_FLOAT_EXT);
/* frim */
GEN_FLOAT_B(rim, 0x08, 0x0F, PPC_FLOAT_EXT);
/*** Floating-Point compare ***/
/* fcmpo */
GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x01, 0x00600001, PPC_FLOAT)