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Finished(Controller Input): Reading Joypad State

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ed
2026-07-31 15:15:51 -04:00
parent 315e1b2c5e
commit 09dde54030
9 changed files with 210 additions and 74 deletions
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code/hello_joypad/hello_joypad.tape.c
+58 -13
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@@ -16,6 +16,49 @@
#pragma region Baked Atoms
enum {
R_PadState = R_T4 atom_reg atom_type(U4),
R_PadSignal = R_T0 atom_reg atom_type(U4),
R_CubeRot = R_T1 atom_reg atom_type(V3_S2*),
R_FloorRot = R_T2 atom_reg atom_type(V3_S2*),
};
typedef Struct_(Binds_PadInputDemo) {
U4 pad_state;
V3_S2* cube_rot;
V3_S2* floor_rot;
};
internal MipsAtom_(pad_input_demo) atom_info(atom_bind(Binds_PadInputDemo)
, atom_reads(R_PadState, R_CubeRot, R_FloorRot)
, atom_writes( R_CubeRot, R_FloorRot)
) {
load_word(R_PadState, R_TapePtr, O_(Binds_PadInputDemo,pad_state)),
load_word(R_CubeRot, R_TapePtr, O_(Binds_PadInputDemo,cube_rot)),
load_word(R_FloorRot, R_TapePtr, O_(Binds_PadInputDemo,floor_rot)),
add_ui_self( R_TapePtr, S_(Binds_PadInputDemo)),
and_i(R_PadSignal, R_PadState, pad0_(Pad_Left)),
branch_le_zero(R_PadSignal, atom_offset(pad_left, exit_pad_left)),
load_half( R_T5, R_CubeRot, O_(V3_S2,y)), // BD-Slot occupied
load_half( R_T6, R_FloorRot, O_(V3_S2,y)),
add_si( R_T5, R_T5, 30),
add_si( R_T6, R_T6, 5),
store_half(R_T5, R_CubeRot, O_(V3_S2,y)),
store_half(R_T6, R_FloorRot, O_(V3_S2,y)),
atom_label(exit_pad_left)
and_i(R_PadSignal, R_PadState, pad0_(Pad_Right)),
branch_le_zero(R_PadSignal, atom_offset(pad_right, exit_pad_right)),
load_half( R_T5, R_CubeRot, O_(V3_S2,y)), // BD-Slot occupied
load_half( R_T6, R_FloorRot, O_(V3_S2,y)),
add_si( R_T5, R_T5, -30),
add_si( R_T6, R_T6, -5),
store_half(R_T5, R_CubeRot, O_(V3_S2,y)),
store_half(R_T6, R_FloorRot, O_(V3_S2,y)),
atom_label(exit_pad_right)
mac_yield(),
};
typedef Struct_(Binds_CubeTri) {
U4 PrimCursor;
V4_S2* FaceCursor;
@@ -116,20 +159,22 @@ MipsAtom_(floor_f3_face) atom_info(atom_phase(floor_f3)
/* Culling (Branch forward if Backface) */
gte_mv_from_data_r(R_T0, C2_MAC0),
nop, branch_le_zero(R_T0, atom_offset(culling, floor_f3_face_exit)), nop, // required gte -> cpu load-delay slot.
/* Format Primitive */
mac_gte_store_f3(),
/* Format Primitive */
mac_gte_store_f3(),
/* Calculate Depth */
gte_avg_sort_z3,
gte_mv_from_data_r(R_T1, C2_OTZ),
/* Bounds Check OTZ < 2048 (Branch forward to skip insertion) */
add_ui( R_AT, R_0, OrderingTbl_Len),
set_lt_u( R_AT, R_T1, R_AT),
branch_equal(R_AT, R_0, atom_offset(bounds_chk, floor_f3_face_exit)), nop,
mac_format_f3_color(0xFF, 0xFF, 0xFF), // RGB-form (R=FF, G=FF, B=FF = white)
mac_insert_ot_tag_f3(), /* Insert into Ordering Table Linked List */
add_ui_self(R_PrimCursor, S_(Poly_F3)), /* Advance Prim Cursor (5 words) */
// Note(Ed): No bounds checking, should be checked before atom runs.
/* Calculate Depth */
gte_avg_sort_z3,
gte_mv_from_data_r(R_T1, C2_OTZ),
/* Bounds Check OTZ < 2048 (Branch forward to skip insertion) */
add_ui( R_AT, R_0, OrderingTbl_Len),
set_lt_u( R_AT, R_T1, R_AT),
branch_equal(R_AT, R_0, atom_offset(bounds_chk, floor_f3_face_exit)), nop,
mac_format_f3_color(0xFF, 0xFF, 0xFF), // RGB-form (R=FF, G=FF, B=FF = white)
mac_insert_ot_tag_f3(), /* Insert into Ordering Table Linked List */
add_ui_self(R_PrimCursor, S_(Poly_F3)), /* Advance Prim Cursor (5 words) */
// Note(Ed): No bounds checking, should be checked before atom runs.
// end: branch(bounds_chk)
// end: branch(culling)
/* Advance Input Cursor & Yield (Both branch targets land here) */
atom_label(floor_f3_face_exit)