diff options
Diffstat (limited to 'platform/wavelet3d/gfx_pkg.sv')
| -rw-r--r-- | platform/wavelet3d/gfx_pkg.sv | 164 |
1 files changed, 157 insertions, 7 deletions
diff --git a/platform/wavelet3d/gfx_pkg.sv b/platform/wavelet3d/gfx_pkg.sv index cfab6a5..5c420cc 100644 --- a/platform/wavelet3d/gfx_pkg.sv +++ b/platform/wavelet3d/gfx_pkg.sv @@ -5,7 +5,8 @@ package gfx; typedef logic[7:0] float_exp; typedef logic[$bits(word) - $bits(float_exp) - 2:0] float_mant; - typedef logic[$bits(float_mant):0] float_mant_full; // Incluye '1.' explícito + typedef logic[$bits(float_mant):0] float_mant_full; // Incluye '1.' explícito + typedef logic[$bits(float_mant_full) + 1:0] float_mant_ext; // Considera overflow localparam float_exp FLOAT_EXP_BIAS = (1 << ($bits(float_exp) - 1)) - 1; localparam float_exp FLOAT_EXP_MAX = {($bits(float_exp)){1'b1}}; @@ -56,14 +57,163 @@ package gfx; is_float_special = in.exp_max | (in.exp_min & ~in.mant_zero); endfunction - /* -> 4,4,4,4,4,4,4,4 -> 8,8,8,8 -> 16,16 -> 32 - */ - localparam FADD_CLZ_STAGES = 4; + function float_mant_ext float_prepare_round(float in, float_class in_class); + float_prepare_round = {~in_class.exp_min, in.mant, 2'b00}; + endfunction + + // -> 4,4,4,4,4,4,4,4 -> 8,8,8,8 -> 16,16 -> 32 + localparam int FPINT_CLZ_STAGES = 4; + localparam int FPINT_STAGES = 7 + FPINT_CLZ_STAGES + 4; + + localparam bit[$clog2($bits(float_mant_ext)):0] FPINT_MAX_SHIFT + = 1 << $clog2($bits(float_mant_ext)); + + typedef logic[$clog2(FPINT_MAX_SHIFT):0] fpint_shift; + + typedef struct packed + { + logic setup_mul_float, + setup_unit_b, + mnorm_put_hi, + mnorm_put_lo, + mnorm_put_mul, + mnorm_zero_b, + mnorm_zero_flags, + minmax_copy_flags, + shiftr_int_signed, + addsub_copy_flags, + addsub_int_operand, + clz_force_nop, + shiftl_copy_flags, + round_copy_flags, + round_enable, + encode_enable; + } fpint_op; + + typedef struct packed + { + float a, + b, + a_mul, + b_mul; + } fpint_setup_mulclass; + + typedef struct packed + { + float b; + float_exp exp; + float_class a_class, + b_class; + dword product; + logic sign, + overflow; + } fpint_mulclass_mnorm; + + typedef struct packed + { + float a, + b; + float_class a_class, + b_class; + logic slow, + zero, + guard, + round, + sticky, + slow_in, + overflow; + } fpint_mnorm_minmax; + + typedef struct packed + { + float max, + min; + float_class max_class, + min_class; + logic slow, + zero, + guard, + round, + sticky; + } fpint_minmax_expdiff; + + typedef struct packed + { + float max, + min; + float_class max_class, + min_class; + fpint_shift exp_shift; + logic slow, + zero, + guard, + round, + sticky; + } fpint_expdiff_shiftr; + + typedef struct packed + { + float max, + min; + float_class max_class, + min_class; + float_mant_ext max_mant, + min_mant, + sticky_mask; + logic slow, + zero, + guard, + round, + sticky, + int_sign; + } fpint_shiftr_addsub; typedef struct packed { - logic fadd, - fmul; - } arith_op; + float max; + word add_sub; + logic slow, + zero, + guard, + round, + sticky; + } fpint_clz_hold; + + typedef fpint_clz_hold fpint_addsub_clz; + + typedef struct packed + { + fpint_clz_hold hold; + fpint_shift shift; + } fpint_clz_shiftl; + + typedef struct packed + { + float val; + logic slow, + zero, + guard, + round, + sticky, + overflow, + sticky_last; + } fpint_shiftl_round; + + typedef struct packed + { + float val; + logic slow, + zero, + exp_step, + overflow; + } fpint_round_rnorm; + + typedef struct packed + { + float val; + logic slow, + zero, + overflow; + } fpint_rnorm_encode; endpackage |