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now we're cookin

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ed
2026-06-15 01:59:18 -04:00
parent e7d0b7a4b3
commit 68fd4ca791
6 changed files with 269 additions and 236 deletions
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code/gte_hello/hello_gte.c
+40 -43
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@@ -112,7 +112,7 @@ I_ B1* prim__alloc(U4 type_width, Str8 type_name) {
gknown PrimitiveArena* pa = & static_mem.primitives;
gknown B1* buf = (B1*) r_(static_mem.primitives.buf)[static_mem.active_buf_id];
assert(pa->used + type_width < PrimitiveBuff_Len);
B1* next = buf + pa->used;
B1* next = buf + pa->used;
pa->used += type_width;
return next;
}
@@ -294,59 +294,57 @@ void update(PrimitiveArena* pa, U4* ordering_buf)
gte_matrix_set_rotation (& static_mem.tform_world);
gte_matrix_set_translation(& static_mem.tform_world);
LP_ U4 mem_temp_tape[512]; // Buffer for function addresses
FArena tape_arena; farena_init(&tape_arena, slice_ut(mem_temp_tape, S_(mem_temp_tape)));
TapeBuilder tb = tb_begin(&tape_arena); {
// Setup state atoms
m3s2_rotation( & static_mem.floor.rot, & static_mem.tform_world);
m3s2_translation( & static_mem.tform_world, & static_mem.floor.pos);
// Push "Protocol" to tape
tb_emit(& tb, code_atom_set_gte_world);
tb_emit(& tb, (Code*)& static_mem.tform_world);
for (U4 i = 0; i < Floor_num_faces; i++) {
tb_emit(& tb, code_atom_floor_tri);
}
}
Slice_U4 tape = tb_end(& tb);
// --- EXECUTION ---
B1* prim_cursor = (B1*)r_(pa->buf)[static_mem.active_buf_id] + pa->used;
// 2. Fire the Tape Drive (Explicitly bind the workspace variables)
tape_run(tape, & prim_cursor, static_mem.floor.faces, static_mem.floor.verts, ordering_buf);
U4 prim_base = u4_(pa->buf[static_mem.active_buf_id]);
U4 prim_cursor = prim_base + pa->used;
// 3. Update C-side state
pa->used = (U4)prim_cursor - (U4)r_(pa->buf)[static_mem.active_buf_id];
static_mem.floor.rot.y += 5;
// Prepare the tape.
LP_ U4 mem_temp_tape[512]; FArena tape_arena; farena_init(& tape_arena, slice_ut_arr(mem_temp_tape));
TapeBuilder tb = tb_make(&tape_arena); tb_scope(& tb) {
// Push "Protocol" to tape
tb_emit(& tb, code_bind_workspace);
tb_data(& tb, prim_cursor);
tb_data(& tb, u4_(static_mem.floor.faces));
tb_data(& tb, u4_(static_mem.floor.verts));
tb_data(& tb, u4_(ordering_buf));
tb_emit(& tb, code_set_gte_world);
tb_data(& tb, u4_(& static_mem.tform_world));
for (U4 i = 0; i < Floor_num_faces; i++) {
tb_emit(& tb, code_floor_tri);
}
tb_emit(& tb, code_sync_prim_cursor);
tb_data(& tb, u4_(& pa->used));
tb_data(& tb, prim_base);
}
// Fire off the tape.
tape_run(tb_slice(tb));
// C-side state (pa->used) has already been updated by the tape!
static_mem.floor.rot.y += 5;
}
// --- TAPE DIAGNOSTICS ---
if (0)
{
LP_ U4 mem_temp_tape[512];
FArena tape_arena;
farena_init(&tape_arena, slice_ut(mem_temp_tape, S_(mem_temp_tape)));
TapeBuilder tb = tb_begin(&tape_arena); {
LP_ U4 mem_temp_tape[512]; FArena tape_arena; farena_init(& tape_arena, slice_ut_arr(mem_temp_tape));
TapeBuilder tb = tb_make(& tape_arena); tb_scope(& tb) {
// Skip set_gte_world atom for diagnostics to isolate the triangle loop
for (U4 i = 0; i < Floor_num_faces; i++) {
// =======================================================
// SWAP EMIT TO TEST DIFFERENT PARTS OF THE PIPELINE:
// =======================================================
// 1. code_atom_diag_yield -> Tests Tape Engine jump logic
// 2. code_atom_diag_color -> Tests OT and Prim Arena memory
// 3. code_atom_diag_gte -> Tests Vertex arrays and GTE Math
// tb_emit(&tb, code_atom_diag_yield);
tb_emit(& tb, code_atom_diag_color);
// tb_emit(&tb, code_atom_diag_gte);
// 1. code_diag_yield -> Tests Tape Engine jump logic
// 2. code_diag_color -> Tests OT and Prim Arena memory
// 3. code_diag_gte -> Tests Vertex arrays and GTE Math
// tb_emit(& tb, code_diag_yield);
// tb_emit(& tb, code_diag_color);
// tb_emit(& tb, code_diag_gte);
}
}
Slice_U4 tape = tb_end(& tb);
// Setup Workspace Registers
B1* prim_cursor = (B1*)r_(pa->buf)[static_mem.active_buf_id] + pa->used;
tape_run(tape, & prim_cursor, static_mem.floor.faces, static_mem.floor.verts, ordering_buf);
tape_run(tb_slice(tb));
pa->used = (U4)prim_cursor - (U4)r_(pa->buf)[static_mem.active_buf_id];
static_mem.floor.rot.y += 5;
}
@@ -372,8 +370,7 @@ int main(void)
}
// gknown gp_screen_init();
gp_screen_init_c11(& static_mem.screen_buf, & static_mem.active_buf_id);
while (1)
{
while (1) {
gknown S4* active_buf_id = & static_mem.active_buf_id;
gknown U4* ordering_buf = r_(static_mem.ordering_tbl)[active_buf_id[0]];
gknown PrimitiveArena* pa = & static_mem.primitives;