diff options
author | Christopher Faylor <me+cygwin@cgf.cx> | 2000-02-17 19:39:46 +0000 |
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committer | Christopher Faylor <me+cygwin@cgf.cx> | 2000-02-17 19:39:46 +0000 |
commit | 43b55bace5fad27af5da7a99784667363b92c45d (patch) | |
tree | 17fe82f6ba0d93b76d10dd73d4945ab81b69db40 /newlib/libc/machine/h8500/divhi3.S | |
parent | 8dabd7496a9eeaca2a7180c0a176059ba9229bb2 (diff) | |
download | gdb-SNAPSHOT.tar.gz |
import newlib-2000-02-17 snapshotnewlib-2000-02-17SNAPSHOT
Diffstat (limited to 'newlib/libc/machine/h8500/divhi3.S')
-rw-r--r-- | newlib/libc/machine/h8500/divhi3.S | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/newlib/libc/machine/h8500/divhi3.S b/newlib/libc/machine/h8500/divhi3.S new file mode 100644 index 00000000000..ee313511036 --- /dev/null +++ b/newlib/libc/machine/h8500/divhi3.S @@ -0,0 +1,54 @@ + .title "H8/500 DIVIDE" +!! 2 byte integer Divide code for the H8/500 +!! +!! Steve Chamberlain +!! sac@cygnus.com +!! +!! + +!! args in r1 and r4, result in r0/r1 + +#if __CODE__==32 +#define RET prts +#else +#define RET rts +#endif + .global __divmodhi4 + + +__divmodhi4: + clr.w r0 + tst.w r1 ! neg arg1 + bpl PU + + + neg.w r1 +NU: tst.w r4 + bmi NN + +NP: divxu.w r4,r0 + neg.w r0 + neg.w r1 + RET + +NN: neg.w r4 + divxu.w r4,r0 + neg.w r0 ! get rem sign right + RET + + +PU: + tst.w r4 + bpl PP + + +PN: neg.w r4 + divxu.w r4,r0 + neg.w r1 + RET + +PP: divxu.w r4,r0 ! rem in r0, q in r1 + RET + + + |