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feat(decomp): parallel gate — 1 fns across 1 binaries (1 workers)

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ov_SC03_111    func_80180A10
This commit is contained in:
Drew T
2026-09-01 14:42:18 -06:00
parent 40e58ee5b3
commit 2de045a8ad
1 changed files with 78 additions and 1 deletions
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src/ov_SC03_111/ov_SC03_111_jr_8017EC58.c
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@@ -3676,7 +3676,84 @@ void func_801809D4(void *a0) {
}
INCLUDE_ASM("asm/ov_SC03_111/nonmatchings/ov_SC03_111_jr_8017EC58", func_80180A10);
/* func_80180A10 -- ov_SC03_111 / ov_SC03_111_jr_8017EC58 (92/92 MATCH)
*
* Prelude is the byte-proven near-twin func_8017D20C (src/ov_SC03_099/ov_SC03_099_jr_8017BEBC.c):
* the func_80148800(&D_80126B58)&3 toggle on *(u8*)(a0+5), the `u8 t` index, and the align-2
* `Blk8_80126940_*` 8-byte record whose whole-struct assign is the lwl/lwr + swl/swr copy (§48-C2).
* Symbol surface re-read off THIS target's own .s (D_80188A54 / D_80188A4C, not the twin's
* D_80186EDC), literals re-read too (-0x332 / -0x620 / 0x621 / 0x38E / 0xE3, 683/1568 whose
* signed-magic is the target's 0x5397829D >> 9).
*
* @class: schedule
* @stuck: none -- MATCH. The only residual (8 ins, ADDRESSING/lui!=andi) was the `andi $s1,$v0,0xFFF`
* scheduling AFTER the two `lhu`s instead of before them, which then cost $v0/$v1 to $v1/$a2 in
* the argument block. Statement order is INVARIANT here: all 24 permutations of the four
* statements in that window were brute-forced (cookbook-index L25) and every A-first order gave
* the same 8 -- a §307 bound. The unlock is *cookbook §393, THE BIRTHING BOOST*: `s1` is a
* single-set local, which gets gcc-2.7.2's maximum scheduling priority and therefore (sched2
* running BACKWARD) lands LATE. The zero-byte re-tie gives the pseudo a second set and kills the
* boost. NOTE: the plain-C form of the same idea (`s1 = ratan2(...); s1 &= 0xFFF;`) does NOT work
* -- it made s1/s0 swap in the allocator and went 8 -> 18. The asm re-tie is the one that lands.
*
* Decl note (§376/§378): func_80180B80 is DEFINED later in this TU as (S*, s16*, u16). Declaring it
* no-proto at BLOCK scope is compatible in gcc-2.7.2 -- verified by compiling this body in a file
* that also carries the TU's `S` typedef and that exact prototype: still MATCH (92 ins). Every other
* extern here is copied verbatim from the TU (ratan2 :246, func_80148800 :266, func_80013294 :497,
* D_80126B58 :55).
*/
typedef struct {
s16 v[4];
} Blk8_80126940_80180A10;
extern s32 ratan2(s32 a0, s32 a1);
extern u16 func_80148800(s32 *a0);
extern s32 func_80013294(void *a0, void *a1);
void func_80180A10(s32 a0) {
extern void func_80180B80();
extern s32 D_80126B58;
extern s16 D_80188A54[];
extern s32 D_80188A4C;
extern Blk8_80126940_80180A10 D_80126940;
Blk8_80126940_80180A10 sp10;
u16 sp18[3];
s32 s1;
s32 v;
u8 t;
if (func_80148800(&D_80126B58) & 3) {
t = (*(u8 *)(a0 + 5) + 1) & 1;
*(u8 *)(a0 + 5) = t;
*(s32 *)(a0 + 0x14) = D_80188A54[t];
}
sp10 = D_80126940;
if (sp10.v[1] < -0x332) {
sp10.v[1] = -0x332;
}
if (sp10.v[2] < -0x620) {
sp10.v[2] = -0x620;
}
s1 = ratan2(sp10.v[0], sp10.v[2]) & 0xFFF;
__asm__("" : "=r"(s1) : "0"(s1)); /* §393 birthing boost: 2-set s1 -> the andi schedules first */
sp18[0] = (u16)sp10.v[0];
sp18[1] = 0;
sp18[2] = (u16)sp10.v[2];
v = (s16)func_80013294(&D_80188A4C, sp18);
if (v >= 0x621) {
*(u16 *)(a0 + 0x20) = 0x38E;
} else {
*(u16 *)(a0 + 0x20) = v * 683 / 1568 + 0xE3;
}
func_80180B80(a0, sp10.v, s1);
}
typedef struct {
u8 pad0[8];