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orgnaizing, improving asm annotation

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ed
2026-06-14 17:27:52 -04:00
parent 0040f6326e
commit 2c3d0c4af7
5 changed files with 223 additions and 203 deletions
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code/duffle/gte.h
+49 -47
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@@ -271,6 +271,9 @@ enum { _C2_OPS_ = 0
* - rd: COP2 control register index (0..31) */
#define enc_gte_tx(sub, rt, rd) (enc_op(op_cop2) | enc_rs(sub) | enc_rt(rt) | enc_rd(rd))
#define gte_mt(rt, rd) enc_gte_tx(cop_mt, (rt), (rd)) /* Move GPR (rt) to GTE Control Register (rd) */
#define gte_mf(rt, rd) enc_gte_tx(cop_mf, (rt), (rd)) /* Move GTE Control Register (rd) to GPR (rt) */
/* COP2 Data Load (lwc2): `lwc2 rt, off(rs)`
* Layout: [op_lwc2:6][rs:5][rt:5][imm:16]
* - rs: GPR base address
@@ -332,7 +335,7 @@ enum { _C2_OPS_ = 0
*
* Decomposition (per the `enc_gte_<field>` definitions above):
* gte_cmdw_<name> = gte_cmd_base | enc_gte_cmd(<cmd>)
*
* The SF/MX/V/CV/LM fields are all zero in the common cases (standard
* rotation-matrix, no scaling factor, V0 vector, translation vector,
* no clamp), so the only varying bits are the `cmd` field.
@@ -401,12 +404,12 @@ enum {
GTE_Z_Offset = 4
};
#define gte_load_word_v0(base) enc_gte_lw(gte_in_v0_xy, (base), 0)
#define gte_load_word_v0z(base) enc_gte_lw(gte_in_v0_z, (base), GTE_Z_Offset)
#define gte_load_word_v1(base) enc_gte_lw(gte_in_v1_xy, (base), 0)
#define gte_load_word_v1z(base) enc_gte_lw(gte_in_v1_z, (base), GTE_Z_Offset)
#define gte_load_word_v2(base) enc_gte_lw(gte_in_v2_xy, (base), 0)
#define gte_load_word_v2z(base) enc_gte_lw(gte_in_v2_z, (base), GTE_Z_Offset)
#define gte_lw_v0(base) enc_gte_lw(gte_in_v0_xy, (base), 0)
#define gte_lw_v0z(base) enc_gte_lw(gte_in_v0_z, (base), GTE_Z_Offset)
#define gte_lw_v1(base) enc_gte_lw(gte_in_v1_xy, (base), 0)
#define gte_lw_v1z(base) enc_gte_lw(gte_in_v1_z, (base), GTE_Z_Offset)
#define gte_lw_v2(base) enc_gte_lw(gte_in_v2_xy, (base), 0)
#define gte_lw_v2z(base) enc_gte_lw(gte_in_v2_z, (base), GTE_Z_Offset)
/* gte_load_vN(r_ptr, base) — placeholder-punned lwc2 loaders
*
@@ -445,26 +448,23 @@ enum {
*
* The `asm_clobber(...)` helper from gcc_asm.h prepends the colon that
* starts the clobbers section. */
#define gte_load_v0(r_ptr, base) \
asm volatile( \
asm_words( gte_load_word_v0(base), gte_load_word_v0z(base) ) \
, "r"(r_ptr) \
asm_clobber: rlit(R_V0_Code), rlit(R_T0_Code), rlit(R_T1_Code), rlit(R_RA_Code), "memory" \
)
#define gte_load_v0(r_ptr, base) asm volatile( \
asm_words( gte_lw_v0(base), gte_lw_v0z(base) ) \
asm_rpins, r_use(r_ptr) \
asm_clobber: rlit(R_V0_Code), rlit(R_T0_Code), rlit(R_T1_Code), rlit(R_RA_Code), clb_mem_drain \
)
#define gte_load_v1(r_ptr, base) \
asm volatile( \
asm_words( gte_load_word_v1(base), gte_load_word_v1z(base) ) \
, "r"(r_ptr) \
asm_clobber: rlit(R_V0_Code), rlit(R_T0_Code), rlit(R_T1_Code), rlit(R_RA_Code), "memory" \
)
#define gte_load_v1(r_ptr, base) asm volatile( \
asm_words( gte_lw_v1(base), gte_lw_v1z(base) ) \
asm_rpins, r_use(r_ptr) \
asm_clobber: rlit(R_V0_Code), rlit(R_T0_Code), rlit(R_T1_Code), rlit(R_RA_Code), clb_mem_drain \
)
#define gte_load_v2(r_ptr, base) \
asm volatile( \
asm_words( gte_load_word_v2(base), gte_load_word_v2z(base) ) \
, "r"(r_ptr) \
asm_clobber: rlit(R_V0_Code), rlit(R_T0_Code), rlit(R_T1_Code), rlit(R_RA_Code), "memory" \
)
#define gte_load_v2(r_ptr, base) asm volatile( \
asm_words( gte_lw_v2(base), gte_lw_v2z(base) ) \
asm_rpins, r_use(r_ptr) \
asm_clobber: rlit(R_V0_Code), rlit(R_T0_Code), rlit(R_T1_Code), rlit(R_RA_Code), clb_mem_drain \
)
/* gte_load_v0v1v2(p0, p1, p2, b0, b1, b2) — the canonical prelude to gte_cmd_rtpt.
*
@@ -478,14 +478,15 @@ enum {
* gte_load_v0v1v2(p0, p1, p2, R_T4, R_T5, R_T6);
* gte_rtpt();
*/
#define gte_load_v0v1v2(p0, p1, p2, b0, b1, b2) \
asm volatile( \
asm_words( gte_lwc2_v0(b0), gte_lwc2_v0z(b0), \
gte_lwc2_v1(b1), gte_lwc2_v1z(b1), \
gte_lwc2_v2(b2), gte_lwc2_v2z(b2) ) \
, "r"(p0), "r"(p1), "r"(p2) \
asm_clobber( rlit(R_V0_Code), rlit(R_T0_Code), rlit(R_T1_Code), rlit(R_RA_Code), "memory" ) \
)
#define gte_load_v0v1v2(p0, p1, p2, b0, b1, b2) asm volatile( \
asm_words( \
gte_lw_v0(b0), gte_lw_v0z(b0), \
gte_lw_v1(b1), gte_lw_v1z(b1), \
gte_lw_v2(b2), gte_lw_v2z(b2) ) \
asm_rpins \
, r_use(p0), r_use(p1), r_use(p2) \
asm_clobber: rlit(R_V0_Code), rlit(R_T0_Code), rlit(R_T1_Code), rlit(R_RA_Code), clb_mem_drain \
)
/**
* @brief Rotate, Translate and Perspective Triple (23 cycles)
@@ -623,19 +624,20 @@ enum {
* get stale-RT2x/RT3x artifacts in RTPS/RTPT/MVMVA output.
*/
#define asm_gte_matrix_set_rotation(r0) \
asm volatile(asm_words( \
load_imm(R_T4, r0, 0) \
, load_imm(R_T5, r0, 4) \
, enc_cop2_tx(cop_mt, R_T4, 0) \
, enc_cop2_tx(cop_mt, R_T5, 1) \
, load_imm(R_T4, r0, 8) \
, load_imm(R_T5, r0, 12) \
, load_imm(R_T6, r0, 16) \
, enc_cop2_tx(cop_mt, R_T4, 2) \
, enc_cop2_tx(cop_mt, R_T5, 3) \
, enc_cop2_tx(cop_mt, R_T6, 4) \
asm volatile( \
asm_words( \
load_word(R_T5, R_T4, 0) \
, load_word(R_T6, R_T4, 4) \
, gte_mt( R_T5, 0) \
, gte_mt( R_T6, 1) \
, load_word(R_T5, R_T4, 8) \
, load_word(R_T6, R_T4, 12) \
, load_word(R_T4, R_T4, 16) \
, gte_mt( R_T5, 2) \
, gte_mt( R_T6, 3) \
, gte_mt( R_T4, 4) \
) \
asm_clobber: clb_system, reg_str(R_T4_Code), reg_str(R_T5_Code), reg_str(R_T6_Code) \
: \
: "r"(r0) \
, r_use(r0) \
asm_clobber: clb_system, rlit(R_T4_Code), rlit(R_T5_Code), rlit(R_T6_Code) \
)