paweld/fpc
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/fpc/source.git synced 2025-04-30 19:34:46 +02:00
Code Issues Packages Projects Releases Wiki Activity

* fixed wrong references (used r0 as base register)

Browse Source
This commit is contained in:
Jonas Maebe 2002-09-06 16:58:43 +00:00
parent 6c202898f6
commit 128c4a9a4b
2 changed files with 39 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
rtl/powerpc/strings.inc
View File

@ -147,17 +147,17 @@ asm
dcbt 0,r4
mtctr r5
subi r4,r4,1
subi r0,r3,1
subi r10,r3,1
LStrlCopyLoop:
lbzu r10,1(r4)
cmpli r10,0
stbu r10,1(r0)
lbzu r0,1(r4)
cmpli r0,0
stbu r0,1(r10)
bdnzf cr0*4+eq, LStrlCopyLoop
{ if we stopped because we copied a #0, we're done }
beq LStrlCopyDone
{ otherwise add the #0 }
li r10,0
stb r10,1(r0)
li r0,0
stb r0,1(r10)
LStrlCopyDone:
end ['R0','R4','R10','CR0'];
@ -190,16 +190,16 @@ function strcomp(str1,str2 : pchar) : longint;assembler;
{ in r3 }
asm
{ use r0 instead of r3 for str1 since r3 contains result }
subi r0,r3,1
subi r9,r3,1
subi r4,r4,1
LStrCompLoop:
{ load next chars }
lbzu r9,1(r0)
lbzu r0,1(r9)
{ check if one is zero }
cmpli cr1,r9,0
cmpli cr1,r0,0
lbzu r10,1(r4)
{ calculate difference }
sub. r3,r9,r10
sub. r3,r0,r10
{ if chars not equal, we're ready }
bne LStrCompDone
{ if they are equal and one is zero, then the other one is zero too }
@ -220,19 +220,19 @@ asm
dcbt 0,r3
{ use r0 instead of r3 for str1 since r3 contains result }
cmpl r5,0
subi r0,r3,1
subi r9,r3,1
li r3,0
beq LStrlCompDone
mtctr r5
subi r4,r4,1
LStrlCompLoop:
{ load next chars }
lbzu r9,1(r0)
lbzu r0,1(r9)
{ check if one is zero }
cmpli cr1,r9,0
cmpli cr1,r0,0
lbzu r10,1(r4)
{ calculate difference }
sub. r3,r9,r10
sub. r3,r0,r10
{ if chars not equal, we're ready }
bne LStrlCompDone
{ if they are equal and one is zero, then the other one is zero too }
@ -315,32 +315,32 @@ asm
dcbt 0,r3
{ use r0 instead of r3 for str1 since r3 contains result }
cmpl r5,0
subi r0,r3,1
subi r9,r3,1
li r3,0
beq- LStrlCompDone
mtctr r5
subi r4,r4,1
LStriCompLoop:
{ load next chars }
lbzu r9,1(r0)
lbzu r0,1(r9)
{ check if one is zero }
cmpli cr1,r9,0
cmpli cr1,r0,0
lbzu r10,1(r4)
{ calculate difference }
sub. r3,r9,r10
sub. r3,r0,r10
{ if chars are equal, no further test is necessary }
beq+ LStriCompEqual
beq LStriCompEqual
{ see stricomp for explanation }
li r8,0
li r5,0
subic r3,r9,'A'
subic r3,r0,'A'
addme r8,r8
subic r3,r10,'A'
addme r5,r5
subfic r3,r9,'Z'
subfic r3,r0,'Z'
andi r8,r8,0x020
subfe r7,r7,r7
subfic r3,r10,'Z'
@ -349,11 +349,11 @@ LStriCompLoop:
and r8,r8,r7
and r5,r5,r24
add r9,r9,r8
add r0,r0,r8
add r10,r10,r5
{ compare again }
sub. r3,r9,r10
sub. r3,r0,r10
bne LStrCompDone
LStriCompEqual:
{ if they are equal and one is zero, then the other one is zero too }
@ -453,7 +453,10 @@ end ['R0','R9','R10','CR0','CR1'];
{
$Log$
Revision 1.11 2002-08-10 17:14:36 jonas
Revision 1.12 2002-09-06 16:58:43 jonas
* fixed wrong references (used r0 as base register)
Revision 1.11 2002/08/10 17:14:36 jonas
* various fixes, mostly changing the names of the modifies registers to
upper case since that seems to be required by the compiler

21
rtl/powerpc/stringss.inc
View File

@ -22,26 +22,29 @@ function strpas(p : pchar) : string; assembler;
function strpcopy(d : pchar;const s : string) : pchar;assembler;
asm
{ get length }
lbz r10,0(r4)
lbz r0,0(r4)
{ put in counter }
cmpli r10,0
mtctr r10
subi r0,r3,1
cmpli r0,0
mtctr r0
subi r10,r3,1
beq LStrPCopyEmpty
LStrPCopyLoop:
{ copy everything }
lbzu r10,1(r4)
stbu r10,1(r0)
lbzu r0,1(r4)
stbu r0,1(r10)
bdnz LStrPCopyLoop
{ add terminating #0 }
li r10,0
li r0,0
LStrPCopyEmpty:
stb r10,1(r0)
stb r0,1(r10)
end ['R0','R4','R10','CR0','CTR'];
{
$Log$
Revision 1.5 2002-08-10 17:14:36 jonas
Revision 1.6 2002-09-06 16:58:43 jonas
* fixed wrong references (used r0 as base register)
Revision 1.5 2002/08/10 17:14:36 jonas
* various fixes, mostly changing the names of the modifies registers to
upper case since that seems to be required by the compiler