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(svn r20333) -Fix (r20332): Mask second operand to 5 bits to avoid differences between platforms.

This commit is contained in:
frosch 2010-08-02 23:35:47 +00:00
parent 0e5c562da4
commit 1a9d5ae076
1 changed files with 3 additions and 3 deletions
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6
src/newgrf_spritegroup.cpp
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@ -124,9 +124,9 @@ static U EvalAdjustT(const DeterministicSpriteGroupAdjust *adjust, ResolverObjec
case DSGA_OP_ROR: return RotateRight(last_value, value);
case DSGA_OP_SCMP: return ((S)last_value == (S)value) ? 1 : ((S)last_value < (S)value ? 0 : 2);
case DSGA_OP_UCMP: return ((U)last_value == (U)value) ? 1 : ((U)last_value < (U)value ? 0 : 2);
case DSGA_OP_SHL: return (U)last_value << (U)value;
case DSGA_OP_SHR: return (U)last_value >> (U)value;
case DSGA_OP_SAR: return (S)last_value >> (U)value;
case DSGA_OP_SHL: return (U)last_value << ((U)value & 0x1F); // mask 'value' to 5 bits, which should behave the same on all architectures.
case DSGA_OP_SHR: return (U)last_value >> ((U)value & 0x1F);
case DSGA_OP_SAR: return (S)last_value >> ((U)value & 0x1F);
default: return value;
}
}