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Add multiplication support for fees computations instead of displaying startgas and gasprice

This commit is contained in:
BTChip 2016-10-17 23:34:07 +02:00
parent 3b61952b44
commit 40df08c386
2 changed files with 138 additions and 0 deletions
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136
src_common/uint256.c
View File

@ -282,6 +282,142 @@ void or256(uint256_t *number1, uint256_t *number2, uint256_t *target) {
or128(&LOWER_P(number1), &LOWER_P(number2), &LOWER_P(target));
}
void mul128(uint128_t *number1, uint128_t *number2, uint128_t *target) {
uint64_t top[4] = {UPPER_P(number1) >> 32, UPPER_P(number1) & 0xffffffff,
LOWER_P(number1) >> 32, LOWER_P(number1) & 0xffffffff};
uint64_t bottom[4] = {UPPER_P(number2) >> 32, UPPER_P(number2) & 0xffffffff,
LOWER_P(number2) >> 32,
LOWER_P(number2) & 0xffffffff};
uint64_t products[4][4];
uint128_t tmp, tmp2;
for (int y = 3; y > -1; y--) {
for (int x = 3; x > -1; x--) {
products[3 - x][y] = top[x] * bottom[y];
}
}
uint64_t fourth32 = products[0][3] & 0xffffffff;
uint64_t third32 = (products[0][2] & 0xffffffff) + (products[0][3] >> 32);
uint64_t second32 = (products[0][1] & 0xffffffff) + (products[0][2] >> 32);
uint64_t first32 = (products[0][0] & 0xffffffff) + (products[0][1] >> 32);
third32 += products[1][3] & 0xffffffff;
second32 += (products[1][2] & 0xffffffff) + (products[1][3] >> 32);
first32 += (products[1][1] & 0xffffffff) + (products[1][2] >> 32);
second32 += products[2][3] & 0xffffffff;
first32 += (products[2][2] & 0xffffffff) + (products[2][3] >> 32);
first32 += products[3][3] & 0xffffffff;
UPPER(tmp) = first32 << 32;
LOWER(tmp) = 0;
UPPER(tmp2) = third32 >> 32;
LOWER(tmp2) = third32 << 32;
add128(&tmp, &tmp2, target);
UPPER(tmp) = second32;
LOWER(tmp) = 0;
add128(&tmp, target, &tmp2);
UPPER(tmp) = 0;
LOWER(tmp) = fourth32;
add128(&tmp, &tmp2, target);
}
void mul256(uint256_t *number1, uint256_t *number2, uint256_t *target) {
uint128_t top[4];
uint128_t bottom[4];
uint128_t products[4][4];
uint128_t tmp, tmp2, fourth64, third64, second64, first64;
uint256_t target1, target2;
UPPER(top[0]) = 0;
LOWER(top[0]) = UPPER(UPPER_P(number1));
UPPER(top[1]) = 0;
LOWER(top[1]) = LOWER(UPPER_P(number1));
UPPER(top[2]) = 0;
LOWER(top[2]) = UPPER(LOWER_P(number1));
UPPER(top[3]) = 0;
LOWER(top[3]) = LOWER(LOWER_P(number1));
UPPER(bottom[0]) = 0;
LOWER(bottom[0]) = UPPER(UPPER_P(number2));
UPPER(bottom[1]) = 0;
LOWER(bottom[1]) = LOWER(UPPER_P(number2));
UPPER(bottom[2]) = 0;
LOWER(bottom[2]) = UPPER(LOWER_P(number2));
UPPER(bottom[3]) = 0;
LOWER(bottom[3]) = LOWER(LOWER_P(number2));
for (int y = 3; y > -1; y--) {
for (int x = 3; x > -1; x--) {
mul128(&top[x], &bottom[y], &products[3 - x][y]);
}
}
UPPER(fourth64) = 0;
LOWER(fourth64) = LOWER(products[0][3]);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[0][2]);
UPPER(tmp2) = 0;
LOWER(tmp2) = UPPER(products[0][3]);
add128(&tmp, &tmp2, &third64);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[0][1]);
UPPER(tmp2) = 0;
LOWER(tmp2) = UPPER(products[0][2]);
add128(&tmp, &tmp2, &second64);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[0][0]);
UPPER(tmp2) = 0;
LOWER(tmp2) = UPPER(products[0][1]);
add128(&tmp, &tmp2, &first64);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[1][3]);
add128(&tmp, &third64, &tmp2);
copy128(&third64, &tmp2);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[1][2]);
add128(&tmp, &second64, &tmp2);
UPPER(tmp) = 0;
LOWER(tmp) = UPPER(products[1][3]);
add128(&tmp, &tmp2, &second64);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[1][1]);
add128(&tmp, &first64, &tmp2);
UPPER(tmp) = 0;
LOWER(tmp) = UPPER(products[1][2]);
add128(&tmp, &tmp2, &first64);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[2][3]);
add128(&tmp, &second64, &tmp2);
copy128(&second64, &tmp2);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[2][2]);
add128(&tmp, &first64, &tmp2);
UPPER(tmp) = 0;
LOWER(tmp) = UPPER(products[2][3]);
add128(&tmp, &tmp2, &first64);
UPPER(tmp) = 0;
LOWER(tmp) = LOWER(products[3][3]);
add128(&tmp, &first64, &tmp2);
copy128(&first64, &tmp2);
clear256(&target1);
shiftl128(&first64, 64, &UPPER(target1));
clear256(&target2);
UPPER(UPPER(target2)) = UPPER(third64);
shiftl128(&third64, 64, &LOWER(target2));
add256(&target1, &target2, target);
clear256(&target1);
copy128(&UPPER(target1), &second64);
add256(&target1, target, &target2);
clear256(&target1);
copy128(&LOWER(target1), &fourth64);
add256(&target1, &target2, target);
}
void divmod128(uint128_t *l, uint128_t *r, uint128_t *retDiv,
uint128_t *retMod) {
uint128_t copyd, adder, resDiv, resMod;

2
src_common/uint256.h
View File

@ -55,6 +55,8 @@ void minus128(uint128_t *number1, uint128_t *number2, uint128_t *target);
void minus256(uint256_t *number1, uint256_t *number2, uint256_t *target);
void or128(uint128_t *number1, uint128_t *number2, uint128_t *target);
void or256(uint256_t *number1, uint256_t *number2, uint256_t *target);
void mul128(uint128_t *number1, uint128_t *number2, uint128_t *target);
void mul256(uint256_t *number1, uint256_t *number2, uint256_t *target);
void divmod128(uint128_t *l, uint128_t *r, uint128_t *div, uint128_t *mod);
void divmod256(uint256_t *l, uint256_t *r, uint256_t *div, uint256_t *mod);
bool tostring128(uint128_t *number, uint32_t base, char *out,