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| author | B. Watson <yalhcru@gmail.com> | 2016-01-17 04:15:52 -0500 |
|---|---|---|
| committer | B. Watson <yalhcru@gmail.com> | 2016-01-17 04:15:52 -0500 |
| commit | 7b2440363630fc413f7d6540c9c47f521aa6c912 (patch) | |
| tree | 1a13bd1516950d3acfe38b906172bde6ce7bcb8d | |
| parent | d72f8556e703eb8c84d055bfc5a8dcb2620ad61e (diff) | |
| download | taipan-7b2440363630fc413f7d6540c9c47f521aa6c912.tar.gz | |
add missing header from previous commit
| -rw-r--r-- | bigfloat.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/bigfloat.h b/bigfloat.h new file mode 100644 index 0000000..bcfcfd1 --- /dev/null +++ b/bigfloat.h @@ -0,0 +1,33 @@ +/* bignum implementation for Atari OS floating point ROM. + Only FP constants and the bignum/bugnump data types need + be defined here. See bignum.h for API. */ + +#define bignum(x) char x[6] +#define bignump char * + +/****** constants ******/ +/* zero */ +#define BIG_0 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } + +/* TODO: calculate bank interest differently: this bignum + implementation is floating point, but I might swap it out + for an int-based one! */ +/* 1.005 (bank interest) */ +#define BIG_1_005 { 0x40, 0x01, 0x00, 0x50, 0x00, 0x00 } + +/* bignum 100, used for score calculations in final_stats() */ +#define BIG_100 { 0x41, 0x01, 0x00, 0x00, 0x00, 0x00 } + +/* one thousand, one million, one hundred million */ +#define BIG_1K { 0x41, 0x10, 0x00, 0x00, 0x00, 0x00 } +#define BIG_1M { 0x43, 0x01, 0x00, 0x00, 0x00, 0x00 } +#define BIG_100M { 0x44, 0x01, 0x00, 0x00, 0x00, 0x00 } + +/* 10 million, one billion, one trillion */ +#define BIG_10M { 0x43, 0x10, 0x00, 0x00, 0x00, 0x00 } +#define BIG_1B { 0x44, 0x10, 0x00, 0x00, 0x00, 0x00 } +#define BIG_1T { 0x46, 0x01, 0x00, 0x00, 0x00, 0x00 } + +/* max value for a ulong, 2**32-1 */ +#define BIG_MAX_ULONG { 0x44, 0x42, 0x94, 0x96, 0x72, 0x95 } + |