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(addsf3): After using swap for 16 bit rotate,

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branch back only if count still greater than 0.

From-SVN: r8529
This commit is contained in:
Jim Wilson 1994-11-19 15:56:33 -08:00
parent 6cb70f0c96
commit 2655599b8f
1 changed files with 4 additions and 2 deletions
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6
gcc/config/m68k/lb1sf68.asm
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@ -2089,7 +2089,8 @@ Laddsf$2:
movew d3,d2 movew d3,d2
swap d2 swap d2
subw #16,d7 subw #16,d7
bra 2b bne 2b | if still more bits, go back to normal case
bra Laddsf$3
5: 5:
exg d6,d7 | exchange the exponents exg d6,d7 | exchange the exponents
subl d6,d7 | keep the largest exponent subl d6,d7 | keep the largest exponent
@ -2112,7 +2113,8 @@ Laddsf$2:
movew d1,d0 movew d1,d0
swap d0 swap d0
subw #16,d7 subw #16,d7
bra 6b bne 6b | if still more bits, go back to normal case
| otherwise we fall through
| Now we have a in d0-d1, b in d2-d3, and the largest exponent in d6 (the | Now we have a in d0-d1, b in d2-d3, and the largest exponent in d6 (the
| signs are stored in a0 and a1). | signs are stored in a0 and a1).