diff options
author | Timothy Pearson <tpearson@raptorengineering.com> | 2019-05-11 15:12:49 -0500 |
---|---|---|
committer | Timothy Pearson <tpearson@raptorengineering.com> | 2019-05-11 15:12:49 -0500 |
commit | 9e80202352dd49bdd9e67b8b906d86f058431505 (patch) | |
tree | 5673c17aad6e3833da8c4ff21b5a11f666ec9fbe /src/roms/openbios/libgcc/__udivmodti4.c | |
download | hqemu-master.zip hqemu-master.tar.gz |
Diffstat (limited to 'src/roms/openbios/libgcc/__udivmodti4.c')
-rw-r--r-- | src/roms/openbios/libgcc/__udivmodti4.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/roms/openbios/libgcc/__udivmodti4.c b/src/roms/openbios/libgcc/__udivmodti4.c new file mode 100644 index 0000000..e373c59 --- /dev/null +++ b/src/roms/openbios/libgcc/__udivmodti4.c @@ -0,0 +1,31 @@ +#include "libgcc.h" + +__uint128_t __udivmodti4(__uint128_t num, __uint128_t den, __uint128_t *rem_p) +{ + __uint128_t quot = 0, qbit = 1; + + if ( den == 0 ) { + __divide_error(); + return 0; /* If trap returns... */ + } + + /* Left-justify denominator and count shift */ + while ( (__int128_t)den >= 0 ) { + den <<= 1; + qbit <<= 1; + } + + while ( qbit ) { + if ( den <= num ) { + num -= den; + quot += qbit; + } + den >>= 1; + qbit >>= 1; + } + + if ( rem_p ) + *rem_p = num; + + return quot; +} |