>> +/* >> + * __ucmpdi2: 64-bit comparison >> + * >> + * R3/R4 has 64 bit value A >> + * R5/R6 has 64 bit value B >> + * result in R3: 0 for A < B >> + * 1 for A == B >> + * 2 for A > B >> + */ >> +_GLOBAL(__ucmpdi2) >> + cmplw r7,r3,r5 # compare high words >> + li r3,0 >> + blt r7,2f # a < b ... return 0 >> + bgt r7,1f # a > b ... return 2 >> + cmplw r6,r4,r6 # compare low words >> + blt r6,2f # a < b ... return 0 >> + li r3,1 >> + ble r6,2f # a = b ... return 1 >> +1: li r3,2 >> +2: blr
Every occurrence of r7 here is wrong (and some of the r6). Is there any reason to do this in assembler code at all? Segher _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
