ref: 15afec47d92c514697070886309336e5cd9e68c6
dir: /sim.c/
#include "gbuffer.h"
#include "mark.h"
#include "sim.h"
//////// Utilities
static Glyph const indexed_glyphs[] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', // 0 - 11
'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', // 12 - 23
'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', // 24 - 35
};
enum { Glyphs_index_max = sizeof indexed_glyphs };
// Always returns 0 through (sizeof indexed_glyphs) - 1, and works on
// capitalized glyphs as well. The index of the lower-cased glyph is returned
// if the glyph is capitalized.
#if 1
// Branchless implementation. Assumes two's complement.
static Usz index_of(Glyph c) {
int i = c;
enum {
// All number chars have this bit set. Some alpha chars do.
Num_bit = 1 << 4,
// All alpha chars have this bit set. No number chars do.
Alpha_bit = 1 << 6,
// The bits we use from a number char (0000 1111) to get an index number
Lower_4 = 0xF,
// The bits we use from an alpha char (0001 1111) to get an index number
Lower_5 = 0x1F,
};
union {
uint32_t u;
int32_t i;
} pui;
// Turn the alpha bit into a mask of all 32 bits
pui.u = (uint32_t)(i & Alpha_bit) << UINT32_C(25);
int alpha_mask = pui.i >> 31;
// Turn the number bit into a mask of all 32 bits
pui.u = (uint32_t)(i & Num_bit) << UINT32_C(27);
int num_mask = pui.i >> 31;
// If it's an alpha char, we add 9 to it, bringing 'a'/'A' from 1 to 10, 'b'
// to 11, etc.
return (Usz)((i & ((alpha_mask & Lower_5) | (num_mask & Lower_4))) +
(9 & alpha_mask));
// If the glyph might be a non-valid char in certain ranges (like '^' char)
// we will return a number here greater than 35. We could do % 36 here if we
// wanted to be really safe.
}
#else
// Reference implementation
static Usz index_of(Glyph c) {
if (c == '.')
return 0;
if (c >= '0' && c <= '9')
return (Usz)(c - '0');
if (c >= 'A' && c <= 'Z')
return (Usz)(c - 'A' + 10);
if (c >= 'a' && c <= 'z')
return (Usz)(c - 'a' + 10);
return 0;
}
#endif
static inline Glyph glyph_of(Usz index) {
assert(index < Glyphs_index_max);
return indexed_glyphs[index];
}
static Glyph glyphs_add(Glyph a, Glyph b) {
Usz ia = index_of(a);
Usz ib = index_of(b);
return indexed_glyphs[(ia + ib) % Glyphs_index_max];
}
static Glyph glyphs_mod(Glyph a, Glyph b) {
Usz ia = index_of(a);
Usz ib = index_of(b);
return indexed_glyphs[ib == 0 ? 0 : (ia % ib)];
}
ORCA_PURE static bool oper_has_neighboring_bang(Glyph const* gbuf, Usz h, Usz w,
Usz y, Usz x) {
Glyph const* gp = gbuf + w * y + x;
if (x < w - 1 && gp[1] == '*')
return true;
if (x > 0 && *(gp - 1) == '*')
return true;
if (y < h - 1 && gp[w] == '*')
return true;
// note: negative array subscript on rhs of short-circuit, may cause ub if
// the arithmetic under/overflows, even if guarded the guard on lhs is false
if (y > 0 && *(gp - w) == '*')
return true;
return false;
}
static U8 midi_note_number_of(Glyph g) {
switch (g) {
case 'C':
return 0;
case 'c':
return 1;
case 'D':
return 2;
case 'd':
return 3;
case 'E':
return 4;
case 'F':
return 5;
case 'f':
return 6;
case 'G':
return 7;
case 'g':
return 8;
case 'A':
return 9;
case 'a':
return 10;
case 'B':
return 11;
default:
return UINT8_MAX;
}
}
static ORCA_FORCE_NO_INLINE U8 midi_velocity_of(Glyph g) {
Usz n = index_of(g);
// scale [0,9] to [0,127]
if (n < 10)
return (U8)(n * 14 + 1);
n -= 10;
// scale [0,25] to [0,127]
// js seems to send 1 when original n is < 10, and 0 when n is 11. Is that
// the intended behavior?
if (n == 0)
return UINT8_C(0);
if (n >= 26)
return UINT8_C(127);
return (U8)(n * 5 - 3);
}
ORCA_FORCE_NO_INLINE
static void oper_movement_phase0(Gbuffer gbuf, Mbuffer mbuf, Usz const height,
Usz const width, Usz const y, Usz const x,
Mark const cell_flags,
Glyph const uppercase_char,
Glyph const actual_char, Isz const delta_y,
Isz const delta_x) {
if (cell_flags & (Mark_flag_lock | Mark_flag_sleep))
return;
if ((actual_char != uppercase_char) &&
!oper_has_neighboring_bang(gbuf, height, width, y, x))
return;
Isz y0 = (Isz)y + delta_y;
Isz x0 = (Isz)x + delta_x;
if (y0 >= (Isz)height || x0 >= (Isz)width || y0 < 0 || x0 < 0) {
gbuf[y * width + x] = '*';
return;
}
Glyph* restrict g_at_dest = gbuf + (Usz)y0 * width + (Usz)x0;
if (*g_at_dest == '.') {
*g_at_dest = actual_char;
gbuf[y * width + x] = '.';
mbuf[(Usz)y0 * width + (Usz)x0] |= Mark_flag_sleep;
} else {
gbuf[y * width + x] = '*';
}
}
typedef struct {
Bank* bank;
Usz bank_size;
Glyph* vars_slots;
} Oper_phase0_extras;
typedef struct {
Bank* bank;
Usz bank_size;
Bank_cursor cursor;
Glyph const* vars_slots;
Piano_bits piano_bits;
Oevent_list* oevent_list;
} Oper_phase1_extras;
static void oper_bank_store(Oper_phase0_extras* extra_params, Usz width, Usz y,
Usz x, I32* restrict vals, Usz num_vals) {
assert(num_vals > 0);
Usz index = y * width + x;
assert(index < ORCA_BANK_INDEX_MAX);
extra_params->bank_size = bank_append(
extra_params->bank, extra_params->bank_size, index, vals, num_vals);
}
static Usz oper_bank_load(Oper_phase1_extras* extra_params, Usz width, Usz y,
Usz x, I32* restrict out_vals, Usz out_count) {
Usz index = y * width + x;
assert(index < ORCA_BANK_INDEX_MAX);
return bank_read(extra_params->bank->data, extra_params->bank_size,
&extra_params->cursor, index, out_vals, out_count);
}
ORCA_FORCE_STATIC_INLINE
Usz usz_clamp(Usz val, Usz min, Usz max) {
if (val < min)
return min;
if (val > max)
return max;
return val;
}
#define ORCA_EXPAND_SOLO_OPER_CHARS(_oper_char, _oper_name) \
Orca_oper_char_##_oper_name = _oper_char,
#define ORCA_EXPAND_DUAL_OPER_CHARS(_upper_oper_char, _lower_oper_char, \
_oper_name) \
Orca_oper_upper_char_##_oper_name = _upper_oper_char, \
Orca_oper_lower_char_##_oper_name = _lower_oper_char,
#define ORCA_EXPAND_MOVM_OPER_CHARS(_upper_oper_char, _lower_oper_char, \
_oper_name, _delta_y, _delta_x) \
Orca_oper_upper_char_##_oper_name = _upper_oper_char, \
Orca_oper_lower_char_##_oper_name = _lower_oper_char,
#define ORCA_DEFINE_OPER_CHARS(_solo_defs, _dual_defs, _movm_defs) \
enum Orca_oper_chars { \
_solo_defs(ORCA_EXPAND_SOLO_OPER_CHARS) \
_dual_defs(ORCA_EXPAND_DUAL_OPER_CHARS) \
_movm_defs(ORCA_EXPAND_MOVM_OPER_CHARS) \
};
#define ORCA_DECLARE_OPERATORS(_solo_defs, _dual_defs, _movm_defs) \
ORCA_DEFINE_OPER_CHARS(_solo_defs, _dual_defs, _movm_defs)
#define OPER_PHASE_COMMON_ARGS \
Glyph *const restrict gbuffer, Mark *const restrict mbuffer, \
Usz const height, Usz const width, Usz const y, Usz const x, \
Usz Tick_number
#define OPER_PHASE_0_COMMON_ARGS \
OPER_PHASE_COMMON_ARGS, Oper_phase0_extras *const extra_params, \
Mark const cell_flags
#define OPER_PHASE_1_COMMON_ARGS \
OPER_PHASE_COMMON_ARGS, Oper_phase1_extras* const extra_params
#define OPER_IGNORE_COMMON_ARGS() \
(void)gbuffer; \
(void)mbuffer; \
(void)height; \
(void)width; \
(void)y; \
(void)x; \
(void)Tick_number; \
(void)extra_params;
#define OPER_PHASE_SPEC ORCA_FORCE_NO_INLINE static
#define BEGIN_SOLO_PHASE_0(_oper_name) \
OPER_PHASE_SPEC void oper_phase0_##_oper_name(OPER_PHASE_0_COMMON_ARGS) { \
OPER_IGNORE_COMMON_ARGS() \
(void)cell_flags; \
enum { This_oper_char = Orca_oper_char_##_oper_name };
#define BEGIN_SOLO_PHASE_1(_oper_name) \
OPER_PHASE_SPEC void oper_phase1_##_oper_name(OPER_PHASE_1_COMMON_ARGS) { \
OPER_IGNORE_COMMON_ARGS() \
enum { This_oper_char = Orca_oper_char_##_oper_name };
#define BEGIN_DUAL_PHASE_0(_oper_name) \
OPER_PHASE_SPEC void oper_phase0_##_oper_name(OPER_PHASE_0_COMMON_ARGS, \
Glyph const This_oper_char) { \
OPER_IGNORE_COMMON_ARGS() \
(void)cell_flags; \
(void)This_oper_char; \
enum { Uppercase_oper_char = Orca_oper_upper_char_##_oper_name }; \
(void)Uppercase_oper_char;
#define BEGIN_DUAL_PHASE_1(_oper_name) \
OPER_PHASE_SPEC void oper_phase1_##_oper_name(OPER_PHASE_1_COMMON_ARGS, \
Glyph const This_oper_char) { \
OPER_IGNORE_COMMON_ARGS() \
(void)This_oper_char; \
enum { Uppercase_oper_char = Orca_oper_upper_char_##_oper_name }; \
(void)Uppercase_oper_char;
#define END_PHASE }
#define PEEK(_delta_y, _delta_x) \
gbuffer_peek_relative(gbuffer, height, width, y, x, _delta_y, _delta_x)
#define POKE(_delta_y, _delta_x, _glyph) \
gbuffer_poke_relative(gbuffer, height, width, y, x, _delta_y, _delta_x, \
_glyph)
#define STUN(_delta_y, _delta_x) \
mbuffer_poke_relative_flags_or(mbuffer, height, width, y, x, _delta_y, \
_delta_x, Mark_flag_sleep)
#define LOCK(_delta_y, _delta_x) \
mbuffer_poke_relative_flags_or(mbuffer, height, width, y, x, _delta_y, \
_delta_x, Mark_flag_lock)
#define STORE(_i32_array) \
oper_bank_store(extra_params, width, y, x, _i32_array, \
ORCA_ARRAY_COUNTOF(_i32_array))
#define LOAD(_i32_array) \
oper_bank_load(extra_params, width, y, x, _i32_array, \
ORCA_ARRAY_COUNTOF(_i32_array))
#define IN Mark_flag_input
#define OUT Mark_flag_output
#define NONLOCKING Mark_flag_lock
#define HASTE Mark_flag_haste_input
#define REALIZE_DUAL \
bool const Dual_is_active = \
(Uppercase_oper_char == This_oper_char) || \
oper_has_neighboring_bang(gbuffer, height, width, y, x);
#define PSEUDO_DUAL bool const Dual_is_active = true
#define BEGIN_DUAL_PORTS \
{ \
bool const Oper_ports_enabled = Dual_is_active;
#define BEGIN_ACTIVE_PORTS \
{ \
bool const Oper_ports_enabled = true;
#define DUAL_IS_ACTIVE Dual_is_active
#define IS_AWAKE (!(cell_flags & (Mark_flag_lock | Mark_flag_sleep)))
#define STOP_IF_DUAL_INACTIVE \
if (!Dual_is_active) \
return
#define STOP_IF_NOT_BANGED \
if (!oper_has_neighboring_bang(gbuffer, height, width, y, x)) \
return
#define OPER_PORT_IO_MASK \
(Mark_flag_input | Mark_flag_output | Mark_flag_haste_input)
#define OPER_PORT_CELL_ENABLING_MASK (Mark_flag_lock | Mark_flag_sleep)
#define OPER_PORT_FLIP_LOCK_BIT(_flags) ((_flags) ^ Mark_flag_lock)
#define PORT(_delta_y, _delta_x, _flags) \
if (Oper_ports_enabled && !(cell_flags & OPER_PORT_CELL_ENABLING_MASK)) \
mbuffer_poke_relative_flags_or(mbuffer, height, width, y, x, _delta_y, \
_delta_x, OPER_PORT_FLIP_LOCK_BIT(_flags))
#define END_PORTS }
//////// Operators
#define ORCA_SOLO_OPERATORS(_) \
_('!', keys) \
_('#', comment) \
_('*', bang) \
_(':', midi)
#define ORCA_DUAL_OPERATORS(_) \
_('A', 'a', add) \
_('B', 'b', banger) \
_('C', 'c', clock) \
_('D', 'd', delay) \
_('F', 'f', if) \
_('G', 'g', generator) \
_('H', 'h', halt) \
_('I', 'i', increment) \
_('J', 'j', jump) \
_('K', 'k', kill) \
_('L', 'l', loop) \
_('M', 'm', modulo) \
_('O', 'o', offset) \
_('P', 'p', push) \
_('Q', 'q', query) \
_('R', 'r', random) \
_('T', 't', track) \
_('U', 'u', uturn) \
_('V', 'v', variable) \
_('X', 'x', teleport)
#define ORCA_MOVEMENT_OPERATORS(_) \
_('N', 'n', north, -1, 0) \
_('E', 'e', east, 0, 1) \
_('S', 's', south, 1, 0) \
_('W', 'w', west, 0, -1) \
_('Z', 'z', southeast, 1, 1)
ORCA_DECLARE_OPERATORS(ORCA_SOLO_OPERATORS, ORCA_DUAL_OPERATORS,
ORCA_MOVEMENT_OPERATORS)
#define MOVEMENT_CASES \
'N' : case 'n' : case 'E' : case 'e' : case 'S' : case 's' : case 'W' \
: case 'w' : case 'Z' : case 'z'
BEGIN_SOLO_PHASE_0(keys)
BEGIN_ACTIVE_PORTS
PORT(0, 1, IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_SOLO_PHASE_1(keys)
Glyph g = PEEK(0, 1);
Piano_bits pb = piano_bits_of(g);
// instead of this extra branch, could maybe just leave output port unlocked
// so the '*' goes away on its own?
if (pb == ORCA_PIANO_BITS_NONE)
return;
Glyph o;
if (ORCA_LIKELY((pb & extra_params->piano_bits) == ORCA_PIANO_BITS_NONE))
o = '.';
else
o = '*';
POKE(1, 0, o);
END_PHASE
BEGIN_SOLO_PHASE_0(comment)
if (!IS_AWAKE)
return;
Glyph* line = gbuffer + y * width;
Usz max_x = x + 255;
if (width < max_x)
max_x = width;
for (Usz x0 = x + 1; x0 < max_x; ++x0) {
Glyph g = line[x0];
mbuffer_poke_flags_or(mbuffer, height, width, y, x0, Mark_flag_lock);
if (g == '#')
break;
}
END_PHASE
BEGIN_SOLO_PHASE_1(comment)
END_PHASE
BEGIN_SOLO_PHASE_0(bang)
if (IS_AWAKE) {
gbuffer_poke(gbuffer, height, width, y, x, '.');
}
END_PHASE
BEGIN_SOLO_PHASE_1(bang)
END_PHASE
BEGIN_SOLO_PHASE_0(midi)
BEGIN_ACTIVE_PORTS
for (Usz i = 1; i < 6; ++i) {
PORT(0, (Isz)i, IN);
}
END_PORTS
END_PHASE
BEGIN_SOLO_PHASE_1(midi)
STOP_IF_NOT_BANGED;
Glyph channel_g = PEEK(0, 1);
Glyph octave_g = PEEK(0, 2);
Glyph note_g = PEEK(0, 3);
Glyph velocity_g = PEEK(0, 4);
Glyph length_g = PEEK(0, 5);
U8 octave_num = (U8)index_of(octave_g);
if (octave_num == 0)
return;
if (octave_num > 9)
octave_num = 9;
U8 note_num = midi_note_number_of(note_g);
if (note_num == UINT8_MAX)
return;
Usz channel_num = index_of(channel_g);
if (channel_num > 15)
channel_num = 15;
Oevent_midi* oe =
(Oevent_midi*)oevent_list_alloc_item(extra_params->oevent_list);
oe->oevent_type = (U8)Oevent_type_midi;
oe->channel = (U8)channel_num;
oe->octave = (U8)usz_clamp(octave_num, 1, 9);
oe->note = note_num;
oe->velocity = midi_velocity_of(velocity_g);
oe->bar_divisor = (U8)usz_clamp(index_of(length_g), 1, Glyphs_index_max);
END_PHASE
BEGIN_DUAL_PHASE_0(add)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, 1, IN);
PORT(0, 2, IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(add)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
POKE(1, 0, glyphs_add(PEEK(0, 1), PEEK(0, 2)));
END_PHASE
BEGIN_DUAL_PHASE_0(banger)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, 1, IN | NONLOCKING);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(banger)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
Glyph g = PEEK(0, 1);
Glyph result;
switch (g) {
case '1':
case '*':
case MOVEMENT_CASES:
result = '*';
break;
default:
result = '.';
}
POKE(1, 0, result);
END_PHASE
BEGIN_DUAL_PHASE_0(clock)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
// This is set as haste in js, but not used during .haste(). Mistake?
// Replicating here anyway.
PORT(0, -1, IN | HASTE);
PORT(0, 1, IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(clock)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
Usz mod_num = index_of(PEEK(0, 1));
if (mod_num == 0)
mod_num = 10;
Usz rate = usz_clamp(index_of(PEEK(0, -1)), 1, 16);
Glyph g = glyph_of(Tick_number / rate % mod_num);
POKE(1, 0, g);
END_PHASE
BEGIN_DUAL_PHASE_0(delay)
PSEUDO_DUAL;
BEGIN_DUAL_PORTS
PORT(0, 1, IN);
PORT(0, -1, IN | HASTE);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(delay)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
Usz offset = index_of(PEEK(0, 1));
Usz rate = usz_clamp(index_of(PEEK(0, -1)), 2, 16);
Glyph g = (Tick_number + offset) % rate == 0 ? '*' : '.';
POKE(1, 0, g);
END_PHASE
BEGIN_DUAL_PHASE_0(if)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, 1, IN);
PORT(0, 2, IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(if)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
Glyph g0 = PEEK(0, 1);
Glyph g1 = PEEK(0, 2);
POKE(1, 0, g0 == g1 ? '1' : '0');
END_PHASE
BEGIN_DUAL_PHASE_0(generator)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, 1, IN);
PORT(1, 0, OUT | NONLOCKING);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(generator)
STOP_IF_NOT_BANGED;
POKE(1, 0, PEEK(0, 1));
STUN(0, 1);
END_PHASE
BEGIN_DUAL_PHASE_0(halt)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(halt)
END_PHASE
BEGIN_DUAL_PHASE_0(increment)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, 1, IN);
PORT(0, 2, IN);
PORT(1, 0, IN | OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(increment)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
Usz min = index_of(PEEK(0, 1));
Usz max = index_of(PEEK(0, 2));
Usz val = index_of(PEEK(1, 0));
++val;
if (max == 0)
max = 10;
if (val >= max)
val = min;
POKE(1, 0, glyph_of(val));
END_PHASE
BEGIN_DUAL_PHASE_0(jump)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(-1, 0, IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(jump)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
POKE(1, 0, PEEK(-1, 0));
END_PHASE
BEGIN_DUAL_PHASE_0(kill)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(1, 0, OUT | HASTE);
END_PORTS
STOP_IF_DUAL_INACTIVE;
if (IS_AWAKE) {
POKE(1, 0, '.');
}
END_PHASE
BEGIN_DUAL_PHASE_1(kill)
END_PHASE
BEGIN_DUAL_PHASE_0(loop)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, -1, IN | HASTE);
END_PORTS
if (IS_AWAKE && DUAL_IS_ACTIVE) {
Usz len = index_of(PEEK(0, -1));
I32 len_data[1];
len_data[0] = (I32)len;
STORE(len_data);
if (len == 0)
len = 1;
else if (len > 16)
len = 16;
if (len > width - x - 1)
len = width - x - 1;
Mark* m = mbuffer + y * width + x + 1;
for (Usz i = 0; i < len; ++i) {
m[i] |= Mark_flag_lock;
}
}
END_PHASE
BEGIN_DUAL_PHASE_1(loop)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
I32 len_data[1];
// todo should at least stun the 1 column if columns is 1
if (LOAD(len_data) && len_data[0] >= 0) {
Usz len = (Usz)len_data[0];
if (len > width - x - 1)
len = width - x - 1;
if (len == 0)
return;
if (len > 16)
len = 16;
Glyph buff[16];
Glyph* gs = gbuffer + y * width + x + 1;
Glyph hopped = *gs;
// ORCA_MEMCPY(buff, gs + 1, len - 1);
for (Usz i = 0; i < len; ++i) {
buff[i] = gs[i + 1];
}
buff[len - 1] = hopped;
// ORCA_MEMCPY(gs, buff, len);
for (Usz i = 0; i < len; ++i) {
gs[i] = buff[i];
}
Mark* m = mbuffer + y * width + x + 1;
for (Usz i = 0; i < len; ++i) {
*m |= Mark_flag_sleep;
}
}
END_PHASE
BEGIN_DUAL_PHASE_0(modulo)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, 1, IN);
PORT(0, 2, IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(modulo)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
POKE(1, 0, glyphs_mod(PEEK(0, 1), PEEK(0, 2)));
END_PHASE
BEGIN_DUAL_PHASE_0(offset)
REALIZE_DUAL;
I32 coords[2];
coords[0] = 0; // y
coords[1] = 1; // x
if (IS_AWAKE && DUAL_IS_ACTIVE) {
coords[0] = (I32)usz_clamp(index_of(PEEK(0, -1)), 0, 16);
coords[1] = (I32)usz_clamp(index_of(PEEK(0, -2)) + 1, 1, 16);
STORE(coords);
}
BEGIN_DUAL_PORTS
PORT(0, -1, IN | HASTE);
PORT(0, -2, IN | HASTE);
PORT(coords[0], coords[1], IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(offset)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
I32 coords[2];
if (!LOAD(coords)) {
coords[0] = 0;
coords[1] = 1;
}
POKE(1, 0, PEEK(coords[0], coords[1]));
STUN(1, 0);
END_PHASE
BEGIN_DUAL_PHASE_0(push)
REALIZE_DUAL;
I32 write_val_x[1];
write_val_x[0] = 0;
if (IS_AWAKE && DUAL_IS_ACTIVE) {
Usz len = usz_clamp(index_of(PEEK(0, -1)), 1, 16);
Usz key = index_of(PEEK(0, -2));
write_val_x[0] = (I32)(key % len);
STORE(write_val_x);
for (Isz i = 0; i < write_val_x[0]; ++i) {
LOCK(1, i);
}
}
BEGIN_DUAL_PORTS
PORT(0, -1, IN | HASTE);
PORT(0, -2, IN | HASTE);
PORT(0, 1, IN);
PORT(1, (Isz)write_val_x, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(push)
STOP_IF_NOT_BANGED;
I32 write_val_x[1];
if (!LOAD(write_val_x)) {
write_val_x[0] = 0;
}
POKE(1, write_val_x[0], PEEK(0, 1));
END_PHASE
BEGIN_DUAL_PHASE_0(query)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, -1, IN | HASTE);
PORT(1, 0, OUT);
END_PORTS
if (IS_AWAKE) {
Usz len = usz_clamp(index_of(PEEK(0, -1)), 0, 16) + 1;
I32 len_data[1];
len_data[0] = (I32)len;
STORE(len_data);
Usz max_x = x + len + 1;
if (max_x > width)
max_x = width;
Mark* i = mbuffer + y * width + x + 1;
Mark* e = mbuffer + y * width + max_x;
while (i != e) {
*i = (Mark)(*i | Mark_flag_lock);
++i;
}
}
END_PHASE
BEGIN_DUAL_PHASE_1(query)
I32 len_data[1];
if (LOAD(len_data) && len_data[0] >= 1 && len_data[0] <= 17) {
Usz len = (Usz)len_data[0];
Usz max_x = x + len + 1;
if (max_x >= width)
max_x = width;
Glyph const* i = gbuffer + y * width + x + 1;
Glyph const* e = gbuffer + y * width + max_x;
Usz count = 0;
while (i != e) {
if (*i != '.')
++count;
++i;
}
Glyph g = glyph_of(count % Glyphs_index_max);
POKE(1, 0, g);
}
END_PHASE
static Usz hash32_shift_mult(Usz key) {
Usz c2 = UINT32_C(0x27d4eb2d);
key = (key ^ UINT32_C(61)) ^ (key >> UINT32_C(16));
key = key + (key << UINT32_C(3));
key = key ^ (key >> UINT32_C(4));
key = key * c2;
key = key ^ (key >> UINT32_C(15));
return key;
}
BEGIN_DUAL_PHASE_0(random)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, 1, IN);
PORT(0, 2, IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(random)
REALIZE_DUAL;
STOP_IF_DUAL_INACTIVE;
Usz a = index_of(PEEK(0, 1));
Usz b = index_of(PEEK(0, 2));
Usz min, max;
if (a == b) {
POKE(1, 0, glyph_of(a));
return;
} else if (a < b) {
min = a;
max = b;
} else {
min = b;
max = a;
}
Usz key = y * width + x;
key = hash32_shift_mult((y * width + x) ^ (Tick_number << UINT32_C(16)));
Usz val = key % (max - min) + min;
POKE(1, 0, glyph_of(val));
END_PHASE
BEGIN_DUAL_PHASE_0(track)
PSEUDO_DUAL;
Isz read_val_x = 1;
if (IS_AWAKE) {
Usz len = usz_clamp(index_of(PEEK(0, -1)), 1, 16);
Usz key = index_of(PEEK(0, -2));
read_val_x = (Isz)(key % len + 1);
I32 ival[1];
ival[0] = (I32)read_val_x;
STORE(ival);
for (Usz i = 0; i < len; ++i) {
LOCK(0, (Isz)(i + 1));
}
}
BEGIN_DUAL_PORTS
PORT(0, -1, IN | HASTE);
PORT(0, -2, IN | HASTE);
PORT(0, (Isz)read_val_x, IN);
PORT(1, 0, OUT);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(track)
I32 ival[1];
if (!LOAD(ival)) {
ival[0] = 1;
}
POKE(1, 0, PEEK(0, ival[0]));
STUN(1, 0);
END_PHASE
static Isz const uturn_data[] = {
// clang-format off
-1, 0, (Isz)'N',
0, -1, (Isz)'W',
0, 1, (Isz)'E',
1, 0, (Isz)'S',
// clang-format on
};
enum {
Uturn_per = 3,
Uturn_loop_limit = Uturn_per * 4,
};
BEGIN_DUAL_PHASE_0(uturn)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
for (Usz i = 0; i < Uturn_loop_limit; i += Uturn_per) {
PORT(uturn_data[i + 0], uturn_data[i + 1], IN | OUT | HASTE | NONLOCKING);
}
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(uturn)
REALIZE_DUAL;
if (!DUAL_IS_ACTIVE)
return;
for (Usz i = 0; i < Uturn_loop_limit; i += Uturn_per) {
Isz dy = uturn_data[i + 0];
Isz dx = uturn_data[i + 1];
Glyph g = PEEK(dy, dx);
switch (g) {
case MOVEMENT_CASES:
POKE(dy, dx, (Glyph)uturn_data[i + 2]);
STUN(dy, dx);
}
}
END_PHASE
BEGIN_DUAL_PHASE_0(variable)
REALIZE_DUAL;
BEGIN_DUAL_PORTS
PORT(0, -1, IN | HASTE);
PORT(0, 1, IN);
PORT(1, 0, OUT);
END_PORTS
if (IS_AWAKE && DUAL_IS_ACTIVE) {
Glyph left = PEEK(0, -1);
Usz var_idx;
if (left >= 'A' && left <= 'Z') {
var_idx = (Usz)('Z' - left);
} else if (left >= 'a' && left <= 'z') {
var_idx = (Usz)(('Z' - 'A') + ('z' - left) + 1);
} else {
return;
}
Glyph right = PEEK(0, 1);
if (right == '.')
return;
extra_params->vars_slots[var_idx] = right;
}
END_PHASE
BEGIN_DUAL_PHASE_1(variable)
REALIZE_DUAL;
if (!DUAL_IS_ACTIVE)
return;
Glyph left = PEEK(0, -1);
if (left != '.')
return;
Glyph right = PEEK(0, 1);
Usz var_idx;
if (right >= 'A' && right <= 'Z') {
var_idx = (Usz)('Z' - right);
} else if (right >= 'a' && right <= 'z') {
var_idx = (Usz)(('Z' - 'A') + ('z' - right) + 1);
} else {
return;
}
Glyph result = extra_params->vars_slots[var_idx];
if (result == '.')
return;
POKE(1, 0, result);
STUN(1, 0);
END_PHASE
BEGIN_DUAL_PHASE_0(teleport)
PSEUDO_DUAL;
I32 coords[2];
coords[0] = 1; // y
coords[1] = 0; // x
if (IS_AWAKE) {
coords[0] = (I32)usz_clamp(index_of(PEEK(0, -1)), 1, 16);
coords[1] = (I32)usz_clamp(index_of(PEEK(0, -2)), 0, 16);
STORE(coords);
}
BEGIN_DUAL_PORTS
PORT(0, -1, IN | HASTE); // y
PORT(0, -2, IN | HASTE); // x
PORT(0, 1, IN);
PORT(coords[0], coords[1], OUT | NONLOCKING);
END_PORTS
END_PHASE
BEGIN_DUAL_PHASE_1(teleport)
I32 coords[2];
if (!LOAD(coords)) {
coords[0] = 1;
coords[1] = 0;
}
POKE(coords[0], coords[1], PEEK(0, 1));
STUN(coords[0], coords[1]);
END_PHASE
//////// Run simulation
#define SIM_EXPAND_SOLO_PHASE_0(_oper_char, _oper_name) \
case _oper_char: \
oper_phase0_##_oper_name(gbuf, mbuf, height, width, iy, ix, tick_number, \
extra_params, cell_flags); \
break;
#define SIM_EXPAND_SOLO_PHASE_1(_oper_char, _oper_name) \
case _oper_char: \
oper_phase1_##_oper_name(gbuf, mbuf, height, width, iy, ix, tick_number, \
extra_params); \
break;
#define SIM_EXPAND_DUAL_PHASE_0(_upper_oper_char, _lower_oper_char, \
_oper_name) \
case _upper_oper_char: \
case _lower_oper_char: \
oper_phase0_##_oper_name(gbuf, mbuf, height, width, iy, ix, tick_number, \
extra_params, cell_flags, glyph_char); \
break;
#define SIM_EXPAND_DUAL_PHASE_1(_upper_oper_char, _lower_oper_char, \
_oper_name) \
case _upper_oper_char: \
case _lower_oper_char: \
oper_phase1_##_oper_name(gbuf, mbuf, height, width, iy, ix, tick_number, \
extra_params, glyph_char); \
break;
#define SIM_EXPAND_MOVM_PHASE_0(_upper_oper_char, _lower_oper_char, \
_oper_name, _delta_y, _delta_x) \
case _upper_oper_char: \
case _lower_oper_char: \
oper_movement_phase0(gbuf, mbuf, height, width, iy, ix, cell_flags, \
_upper_oper_char, glyph_char, _delta_y, _delta_x); \
break;
static void sim_phase_0(Gbuffer gbuf, Mbuffer mbuf, Usz height, Usz width,
Usz tick_number, Oper_phase0_extras* extra_params) {
for (Usz iy = 0; iy < height; ++iy) {
Glyph const* glyph_row = gbuf + iy * width;
Mark const* mark_row = mbuf + iy * width;
for (Usz ix = 0; ix < width; ++ix) {
Glyph glyph_char = glyph_row[ix];
if (ORCA_LIKELY(glyph_char == '.'))
continue;
Mark cell_flags = mark_row[ix] & (Mark_flag_lock | Mark_flag_sleep);
switch (glyph_char) {
ORCA_SOLO_OPERATORS(SIM_EXPAND_SOLO_PHASE_0)
ORCA_DUAL_OPERATORS(SIM_EXPAND_DUAL_PHASE_0)
ORCA_MOVEMENT_OPERATORS(SIM_EXPAND_MOVM_PHASE_0)
}
}
}
}
static void sim_phase_1(Gbuffer gbuf, Mbuffer mbuf, Usz height, Usz width,
Usz tick_number, Oper_phase1_extras* extra_params) {
for (Usz iy = 0; iy < height; ++iy) {
Glyph const* glyph_row = gbuf + iy * width;
Mark const* mark_row = mbuf + iy * width;
for (Usz ix = 0; ix < width; ++ix) {
Glyph glyph_char = glyph_row[ix];
if (ORCA_LIKELY(glyph_char == '.'))
continue;
if (mark_row[ix] & (Mark_flag_lock | Mark_flag_sleep))
continue;
switch (glyph_char) {
ORCA_SOLO_OPERATORS(SIM_EXPAND_SOLO_PHASE_1)
ORCA_DUAL_OPERATORS(SIM_EXPAND_DUAL_PHASE_1)
}
}
}
}
void orca_run(Gbuffer gbuf, Mbuffer mbuf, Usz height, Usz width,
Usz tick_number, Bank* bank, Oevent_list* oevent_list,
Piano_bits piano_bits) {
Glyph vars_slots[('Z' - 'A' + 1) + ('z' - 'a' + 1)];
memset(vars_slots, '.', sizeof(vars_slots));
mbuffer_clear(mbuf, height, width);
oevent_list_clear(oevent_list);
Oper_phase0_extras phase0_extras;
phase0_extras.bank = bank;
phase0_extras.bank_size = 0;
phase0_extras.vars_slots = &vars_slots[0];
sim_phase_0(gbuf, mbuf, height, width, tick_number, &phase0_extras);
Oper_phase1_extras phase1_extras;
phase1_extras.bank = bank;
phase1_extras.bank_size = phase0_extras.bank_size;
bank_cursor_reset(&phase1_extras.cursor);
phase1_extras.vars_slots = &vars_slots[0];
phase1_extras.piano_bits = piano_bits;
phase1_extras.oevent_list = oevent_list;
sim_phase_1(gbuf, mbuf, height, width, tick_number, &phase1_extras);
}