eukara
/
fallout2-ce
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix floating point division 

Closes #103
This commit is contained in:
Alexander Batalov 2022-07-31 12:03:43 +03:00
parent 6064a4bc79
commit b7ac80e684
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/interpreter.cc
View File

@ -1526,7 +1526,10 @@ static void opDivide(Program* program)
divisor = (float)value[0].integerValue; divisor = (float)value[0].integerValue;
} }
if ((int)divisor & 0x7FFFFFFF) { // NOTE: Original code is slightly different, it performs bitwise and
// with 0x7FFFFFFF in order to determine if it's zero. Probably some
// kind of compiler optimization.
if (divisor == 0.0) {
programFatalError("Division (DIV) by zero"); programFatalError("Division (DIV) by zero");
} }
@ -1536,7 +1539,8 @@ static void opDivide(Program* program)
if (value[0].opcode == VALUE_TYPE_FLOAT) { if (value[0].opcode == VALUE_TYPE_FLOAT) {
divisor = value[0].floatValue; divisor = value[0].floatValue;
if ((int)divisor & 0x7FFFFFFF) { // NOTE: Same as above.
if (divisor == 0.0) {
programFatalError("Division (DIV) by zero"); programFatalError("Division (DIV) by zero");
} }