Mercurial > hg > openttd
changeset 7926:e8ce9f6469d1 draft
(svn r11479) -Codechange: Move the BIGMUL functions to the file of their usage
-Codechange: Rename the BIGMUL functions to the fitting naming style
| author | skidd13 <skidd13@openttd.org> |
|---|---|
| date | Mon, 19 Nov 2007 20:18:27 +0000 |
| parents | 6a2f7c2c4ac6 |
| children | 09dbacdca8de |
| files | src/economy.cpp src/macros.h |
| diffstat | 2 files changed, 34 insertions(+), 34 deletions(-) [+] |
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--- a/src/economy.cpp +++ b/src/economy.cpp @@ -43,6 +43,38 @@ #include "player_face.h" #include "group.h" +/** + * Multiply two integer values and shift the results to right. + * + * This function multiplies two integer values. The result is + * shifted by the amount of shift to right. + * + * @param a The first integer + * @param b The second integer + * @param shift The amount to shift the value to right. + * @return The shifted result + */ +static inline int32 BigMulS(const int32 a, const int32 b, const uint8 shift) +{ + return (int32)((int64)a * (int64)b >> shift); +} + +/** + * Multiply two unsigned integers and shift the results to right. + * + * This function multiplies two unsigned integers. The result is + * shifted by the amount of shift to right. + * + * @param a The first unsigned integer + * @param b The second unsigned integer + * @param shift The amount to shift the value to right. + * @return The shifted result + */ +static inline uint32 BigMulSU(const uint32 a, const uint32 b, const uint8 shift) +{ + return (uint32)((uint64)a * (uint64)b >> shift); +} + /* Score info */ const ScoreInfo _score_info[] = { { SCORE_VEHICLES, 120, 100 }, @@ -706,7 +738,7 @@ _current_player = p->index; SET_EXPENSES_TYPE(EXPENSES_LOAN_INT); - SubtractMoneyFromPlayer(CommandCost((Money)BIGMULUS(p->current_loan, interest, 16))); + SubtractMoneyFromPlayer(CommandCost((Money)BigMulSU(p->current_loan, interest, 16))); SET_EXPENSES_TYPE(EXPENSES_OTHER); SubtractMoneyFromPlayer(_price.station_value >> 2); @@ -1195,7 +1227,7 @@ if (time_factor < MIN_TIME_FACTOR) time_factor = MIN_TIME_FACTOR; - return BIGMULSS(dist * time_factor * num_pieces, _cargo_payment_rates[cargo_type], 21); + return BigMulS(dist * time_factor * num_pieces, _cargo_payment_rates[cargo_type], 21); } static void DeliverGoodsToIndustry(TileIndex xy, CargoID cargo_type, int num_pieces)
--- a/src/macros.h +++ b/src/macros.h @@ -221,38 +221,6 @@ } /** - * Multiply two integer values and shift the results to right. - * - * This function multiplies two integer values. The result is - * shifted by the amount of shift to right. - * - * @param a The first integer - * @param b The second integer - * @param shift The amount to shift the value to right. - * @return The shifted result - */ -static inline int32 BIGMULSS(const int32 a, const int32 b, const uint8 shift) -{ - return (int32)((int64)a * (int64)b >> shift); -} - -/** - * Multiply two unsigned integers and shift the results to right. - * - * This function multiplies two unsigned integers. The result is - * shifted by the amount of shift to right. - * - * @param a The first unsigned integer - * @param b The second unsigned integer - * @param shift The amount to shift the value to right. - * @return The shifted result - */ -static inline uint32 BIGMULUS(const uint32 a, const uint32 b, const uint8 shift) -{ - return (uint32)((uint64)a * (uint64)b >> shift); -} - -/** * Checks if a bit in a value is set. * * This function checks if a bit inside a value is set or not.