diff options
Diffstat (limited to 'lib/sail.c')
| -rw-r--r-- | lib/sail.c | 1003 |
1 files changed, 1003 insertions, 0 deletions
diff --git a/lib/sail.c b/lib/sail.c new file mode 100644 index 00000000..66321590 --- /dev/null +++ b/lib/sail.c @@ -0,0 +1,1003 @@ +#include<inttypes.h> +#include<stdbool.h> +#include<stdio.h> +#include<stdlib.h> +#include<string.h> + +#include"sail.h" + +/* + * Temporary mpzs for use in functions below. To avoid conflicts, only + * use in functions that do not call other functions in this file. + */ +static sail_int sail_lib_tmp1, sail_lib_tmp2; + +#define FLOAT_PRECISION 255 + +void setup_library(void) +{ + mpz_init(sail_lib_tmp1); + mpz_init(sail_lib_tmp2); + mpf_set_default_prec(FLOAT_PRECISION); +} + +void cleanup_library(void) +{ + mpz_clear(sail_lib_tmp1); + mpz_clear(sail_lib_tmp2); +} + +bool eq_unit(const unit a, const unit b) +{ + return true; +} + +unit UNDEFINED(unit)(const unit u) +{ + return UNIT; +} + +unit skip(const unit u) +{ + return UNIT; +} + +/* ***** Sail bit type ***** */ + +bool eq_bit(const mach_bits a, const mach_bits b) +{ + return a == b; +} + +/* ***** Sail booleans ***** */ + +bool not(const bool b) { + return !b; +} + +bool eq_bool(const bool a, const bool b) { + return a == b; +} + +bool UNDEFINED(bool)(const unit u) { + return false; +} + +/* ***** Sail strings ***** */ + +void CREATE(sail_string)(sail_string *str) +{ + char *istr = (char *) malloc(1 * sizeof(char)); + istr[0] = '\0'; + *str = istr; +} + +void RECREATE(sail_string)(sail_string *str) +{ + free(*str); + char *istr = (char *) malloc(1 * sizeof(char)); + istr[0] = '\0'; + *str = istr; +} + +void COPY(sail_string)(sail_string *str1, const sail_string str2) +{ + size_t len = strlen(str2); + *str1 = realloc(*str1, len + 1); + *str1 = strcpy(*str1, str2); +} + +void KILL(sail_string)(sail_string *str) +{ + free(*str); +} + +void dec_str(sail_string *str, const mpz_t n) +{ + free(*str); + gmp_asprintf(str, "%Zd", n); +} + +void hex_str(sail_string *str, const mpz_t n) +{ + free(*str); + gmp_asprintf(str, "0x%Zx", n); +} + +bool eq_string(const sail_string str1, const sail_string str2) +{ + return strcmp(str1, str2) == 0; +} + +void undefined_string(sail_string *str, const unit u) {} + +void concat_str(sail_string *stro, const sail_string str1, const sail_string str2) +{ + *stro = realloc(*stro, strlen(str1) + strlen(str2) + 1); + (*stro)[0] = '\0'; + strcat(*stro, str1); + strcat(*stro, str2); +} + +/* ***** Sail integers ***** */ + +#ifndef USE_INT128 + +inline +void COPY(sail_int)(sail_int *rop, const sail_int op) +{ + mpz_set(*rop, op); +} + +inline +void CREATE(sail_int)(sail_int *rop) +{ + mpz_init(*rop); +} + +inline +void RECREATE(sail_int)(sail_int *rop) +{ + mpz_set_ui(*rop, 0); +} + +inline +void KILL(sail_int)(sail_int *rop) +{ + mpz_clear(*rop); +} + +inline +void CREATE_OF(sail_int, mach_int)(sail_int *rop, mach_int op) +{ + mpz_init_set_si(*rop, op); +} + +inline +void RECREATE_OF(sail_int, mach_int)(sail_int *rop, mach_int op) +{ + mpz_set_si(*rop, op); +} + +inline +void CREATE_OF(sail_int, sail_string)(sail_int *rop, sail_string str) +{ + mpz_init_set_str(*rop, str, 10); +} + +inline +void RECREATE_OF(sail_int, sail_string)(mpz_t *rop, sail_string str) +{ + mpz_set_str(*rop, str, 10); +} + +inline +mach_int CONVERT_OF(mach_int, sail_int)(const sail_int op) +{ + return mpz_get_si(op); +} + +inline +void CONVERT_OF(sail_int, mach_int)(sail_int *rop, const mach_int op) +{ + mpz_set_si(*rop, op); +} + +inline +bool eq_int(const sail_int op1, const sail_int op2) +{ + return !abs(mpz_cmp(op1, op2)); +} + +inline +bool lt(const sail_int op1, const sail_int op2) +{ + return mpz_cmp(op1, op2) < 0; +} + +inline +bool gt(const mpz_t op1, const mpz_t op2) +{ + return mpz_cmp(op1, op2) > 0; +} + +inline +bool lteq(const mpz_t op1, const mpz_t op2) +{ + return mpz_cmp(op1, op2) <= 0; +} + +inline +bool gteq(const mpz_t op1, const mpz_t op2) +{ + return mpz_cmp(op1, op2) >= 0; +} + +inline +void shl_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_mul_2exp(*rop, op1, mpz_get_ui(op2)); +} + +inline +void shr_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_fdiv_q_2exp(*rop, op1, mpz_get_ui(op2)); +} + +inline +void undefined_int(sail_int *rop, const int n) +{ + mpz_set_ui(*rop, (uint64_t) n); +} + +inline +void undefined_range(sail_int *rop, const sail_int l, const sail_int u) +{ + mpz_set(*rop, l); +} + +inline +void add_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_add(*rop, op1, op2); +} + +inline +void sub_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_sub(*rop, op1, op2); +} + +inline +void mult_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_mul(*rop, op1, op2); +} + +inline +void tdiv_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_tdiv_q(*rop, op1, op2); +} + +inline +void tmod_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_tdiv_r(*rop, op1, op2); +} + +inline +void fdiv_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_fdiv_q(*rop, op1, op2); +} + +inline +void fmod_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + mpz_fdiv_r(*rop, op1, op2); +} + +void max_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + if (lt(op1, op2)) { + mpz_set(*rop, op2); + } else { + mpz_set(*rop, op1); + } +} + +void min_int(sail_int *rop, const sail_int op1, const sail_int op2) +{ + if (gt(op1, op2)) { + mpz_set(*rop, op2); + } else { + mpz_set(*rop, op1); + } +} + +inline +void neg_int(sail_int *rop, const sail_int op) +{ + mpz_neg(*rop, op); +} + +inline +void abs_int(sail_int *rop, const sail_int op) +{ + mpz_abs(*rop, op); +} + +void pow2(sail_int *rop, const sail_int exp) { + /* Assume exponent is never more than 2^64... */ + uint64_t exp_ui = mpz_get_ui(exp); + mpz_t base; + mpz_init_set_ui(base, 2ul); + mpz_pow_ui(*rop, base, exp_ui); + mpz_clear(base); +} + +#endif + +/* ***** Sail bitvectors ***** */ + +void CREATE(sail_bits)(sail_bits *rop) +{ + rop->bits = malloc(sizeof(mpz_t)); + rop->len = 0; + mpz_init(*rop->bits); +} + +void RECREATE(sail_bits)(sail_bits *rop) +{ + rop->len = 0; + mpz_set_ui(*rop->bits, 0); +} + +void COPY(sail_bits)(sail_bits *rop, const sail_bits op) +{ + rop->len = op.len; + mpz_set(*rop->bits, *op.bits); +} + +void KILL(sail_bits)(sail_bits *rop) +{ + mpz_clear(*rop->bits); + free(rop->bits); +} + +void CREATE_OF(sail_bits, mach_bits)(sail_bits *rop, const uint64_t op, const uint64_t len, const bool direction) +{ + rop->bits = malloc(sizeof(mpz_t)); + rop->len = len; + mpz_init_set_ui(*rop->bits, op); +} + +void RECREATE_OF(sail_bits, mach_bits)(sail_bits *rop, const uint64_t op, const uint64_t len, const bool direction) +{ + rop->len = len; + mpz_set_ui(*rop->bits, op); +} + +mach_bits CONVERT_OF(mach_bits, sail_bits)(const sail_bits op) +{ + return mpz_get_ui(*op.bits); +} + +void CONVERT_OF(sail_bits, mach_bits)(sail_bits *rop, const mach_bits op, const uint64_t len) +{ + rop->len = len; + // use safe_rshift to correctly handle the case when we have a 0-length vector. + mpz_set_ui(*rop->bits, op & safe_rshift(UINT64_MAX, 64 - len)); +} + +void UNDEFINED(sail_bits)(sail_bits *rop, const sail_int len, const mach_bits bit) +{ + zeros(rop, len); +} + +mach_bits UNDEFINED(mach_bits)(const unit u) { return 0; } + +mach_bits safe_rshift(const mach_bits x, const mach_bits n) +{ + if (n >= 64) { + return 0ul; + } else { + return x >> n; + } +} + +void normalize_sail_bits(sail_bits *rop) { + /* TODO optimisation: keep a set of masks of various sizes handy */ + mpz_set_ui(sail_lib_tmp1, 1); + mpz_mul_2exp(sail_lib_tmp1, sail_lib_tmp1, rop->len); + mpz_sub_ui(sail_lib_tmp1, sail_lib_tmp1, 1); + mpz_and(*rop->bits, *rop->bits, sail_lib_tmp1); +} + +void append_64(sail_bits *rop, const sail_bits op, const mach_bits chunk) +{ + rop->len = rop->len + 64ul; + mpz_mul_2exp(*rop->bits, *op.bits, 64ul); + mpz_add_ui(*rop->bits, *rop->bits, chunk); +} + +void add_bits(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len; + mpz_add(*rop->bits, *op1.bits, *op2.bits); + normalize_sail_bits(rop); +} + +void sub_bits(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len; + mpz_sub(*rop->bits, *op1.bits, *op2.bits); + normalize_sail_bits(rop); +} + +void add_bits_int(sail_bits *rop, const sail_bits op1, const mpz_t op2) +{ + rop->len = op1.len; + mpz_add(*rop->bits, *op1.bits, op2); + normalize_sail_bits(rop); +} + +void sub_bits_int(sail_bits *rop, const sail_bits op1, const mpz_t op2) +{ + rop->len = op1.len; + mpz_sub(*rop->bits, *op1.bits, op2); + normalize_sail_bits(rop); +} + +void and_bits(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len; + mpz_and(*rop->bits, *op1.bits, *op2.bits); +} + +void or_bits(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len; + mpz_ior(*rop->bits, *op1.bits, *op2.bits); +} + +void xor_bits(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len; + mpz_xor(*rop->bits, *op1.bits, *op2.bits); +} + +void not_bits(sail_bits *rop, const sail_bits op) +{ + rop->len = op.len; + mpz_set(*rop->bits, *op.bits); + for (mp_bitcnt_t i = 0; i < op.len; i++) { + mpz_combit(*rop->bits, i); + } +} + +void mults_vec(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + mpz_t op1_int, op2_int; + mpz_init(op1_int); + mpz_init(op2_int); + sail_signed(&op1_int, op1); + sail_signed(&op2_int, op2); + rop->len = op1.len * 2; + mpz_mul(*rop->bits, op1_int, op2_int); + normalize_sail_bits(rop); + mpz_clear(op1_int); + mpz_clear(op2_int); +} + +void mult_vec(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len * 2; + mpz_mul(*rop->bits, *op1.bits, *op2.bits); + normalize_sail_bits(rop); /* necessary? */ +} + + +void zeros(sail_bits *rop, const sail_int op) +{ + rop->len = mpz_get_ui(op); + mpz_set_ui(*rop->bits, 0); +} + +void zero_extend(sail_bits *rop, const sail_bits op, const sail_int len) +{ + rop->len = mpz_get_ui(len); + mpz_set(*rop->bits, *op.bits); +} + +void sign_extend(sail_bits *rop, const sail_bits op, const sail_int len) +{ + rop->len = mpz_get_ui(len); + if(mpz_tstbit(*op.bits, op.len - 1)) { + mpz_set(*rop->bits, *op.bits); + for(mp_bitcnt_t i = rop->len - 1; i >= op.len; i--) { + mpz_setbit(*rop->bits, i); + } + } else { + mpz_set(*rop->bits, *op.bits); + } +} + +void length_sail_bits(sail_int *rop, const sail_bits op) +{ + mpz_set_ui(*rop, op.len); +} + +bool eq_bits(const sail_bits op1, const sail_bits op2) +{ + for (mp_bitcnt_t i = 0; i < op1.len; i++) { + if (mpz_tstbit(*op1.bits, i) != mpz_tstbit(*op2.bits, i)) return false; + } + return true; +} + +void vector_subrange_sail_bits(sail_bits *rop, + const sail_bits op, + const sail_int n_mpz, + const sail_int m_mpz) +{ + uint64_t n = mpz_get_ui(n_mpz); + uint64_t m = mpz_get_ui(m_mpz); + + rop->len = n - (m - 1ul); + mpz_fdiv_q_2exp(*rop->bits, *op.bits, m); + normalize_sail_bits(rop); +} + +void sail_truncate(sail_bits *rop, const sail_bits op, const sail_int len) +{ + rop->len = mpz_get_ui(len); + mpz_set(*rop->bits, *op.bits); + normalize_sail_bits(rop); +} + +mach_bits bitvector_access(const sail_bits op, const sail_int n_mpz) +{ + uint64_t n = mpz_get_ui(n_mpz); + return (mach_bits) mpz_tstbit(*op.bits, n); +} + +void sail_unsigned(sail_int *rop, const sail_bits op) +{ + /* Normal form of bv_t is always positive so just return the bits. */ + mpz_set(*rop, *op.bits); +} + +void sail_signed(sail_int *rop, const sail_bits op) +{ + if (op.len == 0) { + mpz_set_ui(*rop, 0); + } else { + mp_bitcnt_t sign_bit = op.len - 1; + mpz_set(*rop, *op.bits); + if (mpz_tstbit(*op.bits, sign_bit) != 0) { + /* If sign bit is unset then we are done, + otherwise clear sign_bit and subtract 2**sign_bit */ + mpz_set_ui(sail_lib_tmp1, 1); + mpz_mul_2exp(sail_lib_tmp1, sail_lib_tmp1, sign_bit); /* 2**sign_bit */ + mpz_combit(*rop, sign_bit); /* clear sign_bit */ + mpz_sub(*rop, *rop, sail_lib_tmp1); + } + } +} + +void append(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len + op2.len; + mpz_mul_2exp(*rop->bits, *op1.bits, op2.len); + mpz_ior(*rop->bits, *rop->bits, *op2.bits); +} + +void replicate_bits(sail_bits *rop, const sail_bits op1, const mpz_t op2) +{ + uint64_t op2_ui = mpz_get_ui(op2); + rop->len = op1.len * op2_ui; + mpz_set(*rop->bits, *op1.bits); + for (int i = 1; i < op2_ui; i++) { + mpz_mul_2exp(*rop->bits, *rop->bits, op1.len); + mpz_ior(*rop->bits, *rop->bits, *op1.bits); + } +} + +uint64_t fast_replicate_bits(const uint64_t shift, const uint64_t v, const int64_t times) +{ + uint64_t r = v; + for (int i = 1; i < times; ++i) { + r |= (r << shift); + } + return r; +} + +// Takes a slice of the (two's complement) binary representation of +// integer n, starting at bit start, and of length len. With the +// argument in the following order: +// +// get_slice_int(len, n, start) +// +// For example: +// +// get_slice_int(8, 1680, 4) = +// +// 11 0 +// V V +// get_slice_int(8, 0b0110_1001_0000, 4) = 0b0110_1001 +// <-------^ +// (8 bit) 4 +// +void get_slice_int(sail_bits *rop, const sail_int len_mpz, const sail_int n, const sail_int start_mpz) +{ + uint64_t start = mpz_get_ui(start_mpz); + uint64_t len = mpz_get_ui(len_mpz); + + mpz_set_ui(*rop->bits, 0ul); + rop->len = len; + + for (uint64_t i = 0; i < len; i++) { + if (mpz_tstbit(n, i + start)) mpz_setbit(*rop->bits, i); + } +} + +// Set slice uses the same indexing scheme as get_slice_int, but it +// puts a bitvector slice into an integer rather than returning it. +void set_slice_int(sail_int *rop, + const sail_int len_mpz, + const sail_int n, + const sail_int start_mpz, + const sail_bits slice) +{ + uint64_t start = mpz_get_ui(start_mpz); + + mpz_set(*rop, n); + + for (uint64_t i = 0; i < slice.len; i++) { + if (mpz_tstbit(*slice.bits, i)) { + mpz_setbit(*rop, i + start); + } else { + mpz_clrbit(*rop, i + start); + } + } +} + +void vector_update_subrange_sail_bits(sail_bits *rop, + const sail_bits op, + const sail_int n_mpz, + const sail_int m_mpz, + const sail_bits slice) +{ + uint64_t n = mpz_get_ui(n_mpz); + uint64_t m = mpz_get_ui(m_mpz); + + mpz_set(*rop->bits, *op.bits); + + for (uint64_t i = 0; i < n - (m - 1ul); i++) { + if (mpz_tstbit(*slice.bits, i)) { + mpz_setbit(*rop->bits, i + m); + } else { + mpz_clrbit(*rop->bits, i + m); + } + } +} + +void slice(sail_bits *rop, const sail_bits op, const sail_int start_mpz, const sail_int len_mpz) +{ + uint64_t start = mpz_get_ui(start_mpz); + uint64_t len = mpz_get_ui(len_mpz); + + mpz_set_ui(*rop->bits, 0ul); + rop->len = len; + + for (uint64_t i = 0; i < len; i++) { + if (mpz_tstbit(*op.bits, i + start)) mpz_setbit(*rop->bits, i); + } +} + +void set_slice(sail_bits *rop, + const sail_int len_mpz, + const sail_int slen_mpz, + const sail_bits op, + const sail_int start_mpz, + const sail_bits slice) +{ + uint64_t start = mpz_get_ui(start_mpz); + + mpz_set(*rop->bits, *op.bits); + rop->len = op.len; + + for (uint64_t i = 0; i < slice.len; i++) { + if (mpz_tstbit(*slice.bits, i)) { + mpz_setbit(*rop->bits, i + start); + } else { + mpz_clrbit(*rop->bits, i + start); + } + } +} + +void shift_bits_left(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len; + mpz_mul_2exp(*rop->bits, *op1.bits, mpz_get_ui(*op2.bits)); + normalize_sail_bits(rop); +} + +void shift_bits_right(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len; + mpz_tdiv_q_2exp(*rop->bits, *op1.bits, mpz_get_ui(*op2.bits)); +} + +/* FIXME */ +void shift_bits_right_arith(sail_bits *rop, const sail_bits op1, const sail_bits op2) +{ + rop->len = op1.len; + mp_bitcnt_t shift_amt = mpz_get_ui(*op2.bits); + mp_bitcnt_t sign_bit = op1.len - 1; + mpz_fdiv_q_2exp(*rop->bits, *op1.bits, shift_amt); + if(mpz_tstbit(*op1.bits, sign_bit) != 0) { + /* */ + for(; shift_amt > 0; shift_amt--) { + mpz_setbit(*rop->bits, sign_bit - shift_amt + 1); + } + } +} + +void reverse_endianness(sail_bits *rop, const sail_bits op) +{ + rop->len = op.len; + if (rop->len == 64ul) { + uint64_t x = mpz_get_ui(*op.bits); + x = (x & 0xFFFFFFFF00000000) >> 32 | (x & 0x00000000FFFFFFFF) << 32; + x = (x & 0xFFFF0000FFFF0000) >> 16 | (x & 0x0000FFFF0000FFFF) << 16; + x = (x & 0xFF00FF00FF00FF00) >> 8 | (x & 0x00FF00FF00FF00FF) << 8; + mpz_set_ui(*rop->bits, x); + } else if (rop->len == 32ul) { + uint64_t x = mpz_get_ui(*op.bits); + x = (x & 0xFFFF0000FFFF0000) >> 16 | (x & 0x0000FFFF0000FFFF) << 16; + x = (x & 0xFF00FF00FF00FF00) >> 8 | (x & 0x00FF00FF00FF00FF) << 8; + mpz_set_ui(*rop->bits, x); + } else if (rop->len == 16ul) { + uint64_t x = mpz_get_ui(*op.bits); + x = (x & 0xFF00FF00FF00FF00) >> 8 | (x & 0x00FF00FF00FF00FF) << 8; + mpz_set_ui(*rop->bits, x); + } else if (rop->len == 8ul) { + mpz_set(*rop->bits, *op.bits); + } else { + /* For other numbers of bytes we reverse the bytes. + * XXX could use mpz_import/export for this. */ + mpz_set_ui(sail_lib_tmp1, 0xff); // byte mask + mpz_set_ui(*rop->bits, 0); // reset accumulator for result + for(mp_bitcnt_t byte = 0; byte < op.len; byte+=8) { + mpz_tdiv_q_2exp(sail_lib_tmp2, *op.bits, byte); // shift byte to bottom + mpz_and(sail_lib_tmp2, sail_lib_tmp2, sail_lib_tmp1); // and with mask + mpz_mul_2exp(*rop->bits, *rop->bits, 8); // shift result left 8 + mpz_ior(*rop->bits, *rop->bits, sail_lib_tmp2); // or byte into result + } + } +} + +/* ***** Sail Reals ***** */ + +void CREATE(real)(real *rop) +{ + mpf_init(*rop); +} + +void RECREATE(real)(real *rop) +{ + mpf_set_ui(*rop, 0); +} + +void KILL(real)(real *rop) +{ + mpf_clear(*rop); +} + +void COPY(real)(real *rop, const real op) +{ + mpf_set(*rop, op); +} + +void UNDEFINED(real)(real *rop, unit u) +{ + mpf_set_ui(*rop, 0ul); +} + +void neg_real(real *rop, const real op) +{ + mpf_neg(*rop, op); +} + +void mult_real(real *rop, const real op1, const real op2) { + mpf_mul(*rop, op1, op2); +} + +void sub_real(real *rop, const real op1, const real op2) +{ + mpf_sub(*rop, op1, op2); +} + +void add_real(real *rop, const real op1, const real op2) +{ + mpf_add(*rop, op1, op2); +} + +void div_real(real *rop, const real op1, const real op2) +{ + mpf_div(*rop, op1, op2); +} + +void sqrt_real(real *rop, const real op) +{ + mpf_sqrt(*rop, op); +} + +void abs_real(real *rop, const real op) +{ + mpf_abs(*rop, op); +} + +void round_up(sail_int *rop, const real op) +{ + mpf_t x; + mpf_init(x); + mpf_ceil(x, op); + mpz_set_ui(*rop, mpf_get_ui(x)); + mpf_clear(x); +} + +void round_down(sail_int *rop, const real op) +{ + mpf_t x; + mpf_init(x); + mpf_floor(x, op); + mpz_set_ui(*rop, mpf_get_ui(x)); + mpf_clear(x); +} + +void to_real(real *rop, const sail_int op) +{ + mpf_set_z(*rop, op); +} + +bool eq_real(const real op1, const real op2) +{ + return mpf_cmp(op1, op2) == 0; +} + +bool lt_real(const real op1, const real op2) +{ + return mpf_cmp(op1, op2) < 0; +} + +bool gt_real(const real op1, const real op2) +{ + return mpf_cmp(op1, op2) > 0; +} + +bool lteq_real(const real op1, const real op2) +{ + return mpf_cmp(op1, op2) <= 0; +} + +bool gteq_real(const real op1, const real op2) +{ + return mpf_cmp(op1, op2) >= 0; +} + +void real_power(real *rop, const real base, const sail_int exp) +{ + uint64_t exp_ui = mpz_get_ui(exp); + mpf_pow_ui(*rop, base, exp_ui); +} + +void CREATE_OF(real, sail_string)(real *rop, const sail_string op) +{ + mpf_init(*rop); + gmp_sscanf(op, "%Ff", *rop); +} + +/* ***** Printing functions ***** */ + +void string_of_int(sail_string *str, const sail_int i) +{ + gmp_asprintf(str, "%Zd", i); +} + +void string_of_bits(sail_string *str, const sail_bits op) +{ + if ((op.len % 4) == 0) { + gmp_asprintf(str, "0x%*0Zx", op.len / 4, *op.bits); + } else { + gmp_asprintf(str, "0b%*0Zb", op.len, *op.bits); + } +} + +void fprint_bits(const sail_string pre, + const sail_bits op, + const sail_string post, + FILE *stream) +{ + fputs(pre, stream); + + if (op.len % 4 == 0) { + fputs("0x", stream); + mpz_t buf; + mpz_init_set(buf, *op.bits); + + char *hex = malloc((op.len / 4) * sizeof(char)); + + for (int i = 0; i < op.len / 4; ++i) { + char c = (char) ((0xF & mpz_get_ui(buf)) + 0x30); + hex[i] = (c < 0x3A) ? c : c + 0x7; + mpz_fdiv_q_2exp(buf, buf, 4); + } + + for (int i = op.len / 4; i > 0; --i) { + fputc(hex[i - 1], stream); + } + + free(hex); + mpz_clear(buf); + } else { + fputs("0b", stream); + for (int i = op.len; i > 0; --i) { + fputc(mpz_tstbit(*op.bits, i - 1) + 0x30, stream); + } + } + + fputs(post, stream); +} + +unit print_bits(const sail_string str, const sail_bits op) +{ + fprint_bits(str, op, "\n", stdout); + return UNIT; +} + +unit prerr_bits(const sail_string str, const sail_bits op) +{ + fprint_bits(str, op, "\n", stderr); + return UNIT; +} + +unit print(const sail_string str) +{ + printf("%s", str); + return UNIT; +} + +unit print_endline(const sail_string str) +{ + printf("%s\n", str); + return UNIT; +} + +unit prerr(const sail_string str) +{ + fprintf(stderr, "%s", str); + return UNIT; +} + +unit prerr_endline(const sail_string str) +{ + fprintf(stderr, "%s\n", str); + return UNIT; +} + +unit print_int(const sail_string str, const sail_int op) +{ + fputs(str, stdout); + mpz_out_str(stdout, 10, op); + putchar('\n'); + return UNIT; +} + +unit prerr_int(const sail_string str, const sail_int op) +{ + fputs(str, stderr); + mpz_out_str(stderr, 10, op); + fputs("\n", stderr); + return UNIT; +} + +unit sail_putchar(const sail_int op) +{ + char c = (char) mpz_get_ui(op); + putchar(c); + return UNIT; +} + +void get_time_ns(sail_int *rop, const unit u) +{ + struct timespec t; + clock_gettime(CLOCK_REALTIME, &t); + mpz_set_si(*rop, t.tv_sec); + mpz_mul_ui(*rop, *rop, 1000000000); + mpz_add_ui(*rop, *rop, t.tv_nsec); +} |