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adjsutments for the old graphics hello module.

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ed
2026-07-11 00:11:32 -04:00
parent eccf17d21c
commit 541e52de2b
5 changed files with 45 additions and 45 deletions
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code/duffle/lottes_tape.h
+6 -6
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@@ -132,14 +132,14 @@ MipsAtomComp_(ac_gte_load_tri_verts) {
MipsAtomComp_(ac_insert_ot_tag_f3) {
shift_lleft( R_T1, R_T1, S_(U4)/2), // T1 = otz * S_(U4) (otz arg is implicit R_T1)
add_u_self( R_T1, R_OtBase), // T1 = & OrderingTable[OTZ]
load_word( R_AT, R_T1, O_(PolyTag,bf_addr_len)), // AT = old_ot_head
load_word( R_AT, R_T1, O_(PolyTag,code)), // AT = old_ot_head
load_upper_i(R_V0, (S_(Poly_F3)/S_(U4) - S_(PolyTag)/S_(U4)) << PolyTag_len_bits), // V0 = (5 - 1) << 24 = 4 << 24
mask_upper( R_AT, R_AT, S_(PolyTag_len_bits)), // Strip upper 8 bits (length from prev cell) → keep only low 24
or_u( R_AT, R_AT, R_V0), // Merge length
store_word( R_AT, R_PrimCursor, O_(PolyTag,bf_addr_len)), // prim->tag = packed(prim_length, old_addr)
store_word( R_AT, R_PrimCursor, O_(PolyTag,code)), // prim->tag = packed(prim_length, old_addr)
shift_lleft( R_AT, R_PrimCursor, S_(PolyTag_len_bits)), // AT = (prim_length << 24) | old_addr
shift_lright(R_AT, R_AT, S_(PolyTag_len_bits)),
store_word( R_AT, R_T1, O_(PolyTag,bf_addr_len)), // OrderingTable[OTZ] = PrimCursor
store_word( R_AT, R_T1, O_(PolyTag,code)), // OrderingTable[OTZ] = PrimCursor
};
/* Words: 11; Correctly inserts a primitive into the Ordering Table linked list.
@@ -147,14 +147,14 @@ MipsAtomComp_(ac_insert_ot_tag_f3) {
MipsAtomComp_(ac_insert_ot_tag_g4) {
shift_lleft( R_T1, R_T1, S_(U4)/2), // T1 = otz * S_(U4) (otz arg is implicit R_T1)
add_u_self( R_T1, R_OtBase), // T1 = & OrderingTable[OTZ]
load_word( R_AT, R_T1, O_(PolyTag,bf_addr_len)), // AT = old_ot_head
load_word( R_AT, R_T1, O_(PolyTag,code)), // AT = old_ot_head
load_upper_i(R_V0, (S_(Poly_G4)/S_(U4) - S_(PolyTag)/S_(U4)) << PolyTag_len_bits), // V0 = (9 - 1) << 24 = 8 << 24
mask_upper( R_AT, R_AT, S_(PolyTag_len_bits)), // Strip upper 8 bits (length from prev cell) → keep only low 24
or_u( R_AT, R_AT, R_V0), // Merge length
store_word( R_AT, R_PrimCursor, O_(PolyTag,bf_addr_len)), // prim->tag = packed(prim_length, old_addr)
store_word( R_AT, R_PrimCursor, O_(PolyTag,code)), // prim->tag = packed(prim_length, old_addr)
shift_lleft( R_AT, R_PrimCursor, S_(PolyTag_len_bits)), // AT = (prim_length << 24) | old_addr
shift_lright(R_AT, R_AT, S_(PolyTag_len_bits)),
store_word( R_AT, R_T1, O_(PolyTag,bf_addr_len)), // OrderingTable[OTZ] = PrimCursor
store_word( R_AT, R_T1, O_(PolyTag,code)), // OrderingTable[OTZ] = PrimCursor
};
/* Words: 3; Emits one (cmd|color) word to R_PrimCursor at the given