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author | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
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committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/openbios/libgcc/__udivmoddi4.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/openbios/libgcc/__udivmoddi4.c')
-rw-r--r-- | roms/openbios/libgcc/__udivmoddi4.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/roms/openbios/libgcc/__udivmoddi4.c b/roms/openbios/libgcc/__udivmoddi4.c new file mode 100644 index 000000000..bed70e12b --- /dev/null +++ b/roms/openbios/libgcc/__udivmoddi4.c @@ -0,0 +1,31 @@ +#include "libgcc.h" + +uint64_t __udivmoddi4(uint64_t num, uint64_t den, uint64_t *rem_p) +{ + uint64_t quot = 0, qbit = 1; + + if ( den == 0 ) { + __divide_error(); + return 0; /* If trap returns... */ + } + + /* Left-justify denominator and count shift */ + while ( (int64_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; +} |