mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-05 17:30:58 +08:00
Code Issues Packages Projects Releases Wiki Activity

lib1funcs.asm (divmodsi4): Replace all the uses of er4 with er3.

Browse Source 
* config/h8300/lib1funcs.asm (divmodsi4): Replace all the uses
	of er4 with er3.  Adjust all callers.

From-SVN: r73572
This commit is contained in:
Kazu Hirata 2003-11-14 02:06:37 +00:00 committed by Kazu Hirata
parent b86ca9a2dc
commit ef1f2e1235
2 changed files with 17 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2003-11-13 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/lib1funcs.asm (divmodsi4): Replace all the uses
of er4 with er3. Adjust all callers.
2003-11-13 Andrew Pinski <apinski@apple.com>
* config/darwin.c (machopic_output_possible_stub_label):

30
gcc/config/h8300/lib1funcs.asm
View File

@ -442,7 +442,7 @@ ___modsi3:
mov S0,A0
mov S1,A1
#else
mov.l S0P,A0P
mov.l er3,er0
#endif
bra exitdiv
@ -455,10 +455,7 @@ ___udivsi3:
bsr divmodsi4
bra reti
#else
;; H8/300H and H8S version of divmodsi4 does not clobber S1P or S2P.
PUSHP S0P
bsr divmodsi4
POPP S0P
rts
#endif
@ -473,11 +470,8 @@ ___umodsi3:
mov S1,A1
bra reti
#else
;; H8/300H and H8S version of divmodsi4 does not clobber S1P or S2P.
PUSHP S0P
bsr divmodsi4
mov.l S0P,A0P
POPP S0P
mov.l er3,er0
rts
#endif
@ -608,17 +602,17 @@ divmodsi4:
divxu.w A1,A2P
mov.w A2E,A0E
divxu.w A1,A0P
mov.w A0E,S0
mov.w A0E,A3
mov.w A2,A0E
extu.l S0P
extu.l A3P
rts
; er0 = er0 / er1
; er4 = er0 % er1
; er3 = er0 % er1
; trashes er1 er2
; expects er1 >= 2^16
DenHighNonZero:
mov.l er0,er4
mov.l er0,er3
mov.l er1,er2
#ifdef __H8300H__
divmod_L21:
@ -647,22 +641,22 @@ divmod_L24:
;; er0 contains shifted dividend
;; er1 contains divisor
;; er2 contains shifted divisor
;; er4 contains dividend, later remainder
;; er3 contains dividend, later remainder
divxu.w r2,er0 ; r0 now contains the approximate quotient (AQ)
extu.l er0
beq divmod_L25
subs #1,er0 ; er0 = AQ - 1
mov.w e1,r2
mulxu.w r0,er2 ; er2 = upper (AQ - 1) * divisor
sub.w r2,e4 ; dividend - 65536 * er2
sub.w r2,e3 ; dividend - 65536 * er2
mov.w r1,r2
mulxu.w r0,er2 ; compute er4 = remainder (tentative)
sub.l er2,er4 ; er4 = dividend - (AQ - 1) * divisor
mulxu.w r0,er2 ; compute er3 = remainder (tentative)
sub.l er2,er3 ; er3 = dividend - (AQ - 1) * divisor
divmod_L25:
cmp.l er1,er4 ; is divisor < remainder?
cmp.l er1,er3 ; is divisor < remainder?
blo divmod_L26
adds #1,er0
sub.l er1,er4 ; correct the remainder
sub.l er1,er3 ; correct the remainder
divmod_L26:
rts