aiden/h8-536-decoder
1
0
Fork 0
Code Activity

emualtor working

Browse Source
This commit is contained in:
Aiden
2026-05-25 21:00:25 +10:00
parent 3ab79648ff
commit 752148c585
22 changed files with 588 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
build/rom_serial_pseudocode.c
View File

@@ -191,7 +191,10 @@ extern volatile u8 MEM8[0x10000];
* - evidence: H'BBD8, H'BBDC, H'BBE0, H'BBE4, H'BBE8, H'BBEC, H'BBF0, H'BE4D, H'BE56, H'BE5E, H'BE66, H'BE52, H'BE5A, H'BE62, H'BE6A, H'BE29, H'BE2D, H'BE33, H'BE37, H'BE43, H'BE47, H'BE05, H'BE0D, H'BE15, H'BE09, H'BE11, H'BE19, H'BE22
* gate/queue state machine candidate:
* - main_loop_may_enter_report_builder: FAA2 == 0 && F9C0 == 0 && ((FAA5.bit7 == 0) || (F9C3 == 0)); Main-loop report gate; session must be idle, TX busy timer clear, and RX gate open.
* - idle_heartbeat_report_may_enqueue: F9C4 == 0 && ((FAA5.bit7 == 0) || (F9C3 == 0)) && F9B0 == F9B5; Idle/default report gate; when the FRT2 countdown clears and the queue is empty, loc_4046 can enqueue H'00FF for the later loc_BAF2 -> loc_BA26 send path.
* - idle_heartbeat_report_may_enqueue: F9C4 == 0 && ((FAA5.bit7 == 0) || (F9C3 == 0)) && F9B0 == F9B5; Idle/default report gate; when the FRT2 countdown clears and the queue is empty, loc_4046 can enqueue H'0000 for the later loc_BAF2 -> loc_BA26 send path.
* enqueues report H'0000
* write semantics: loc_4067 is MOV:G.W #H'00, @(-H'0790,R2): the byte immediate is zero-extended by the word destination, so the queue slot becomes H'0000.
* runtime-confirmed frame 00 00 00 00 80 DA via loc_4046 -> loc_BAF2 -> loc_BB08 -> loc_BB1C -> loc_BB20 -> loc_BB2B -> loc_BA26
* - queue_has_pending_report: F9B5 != F9B0; Queue/pending cursor gate; non-empty state stages through BB43 before loc_BA26.
* - periodic_resend_may_fire: (FAA5 & FAA3 & 0x80) != 0 && F9C6 == 0 && F9C8 != 0 after countdown; Resend gate masks pending state with FAA5, checks F9C6/F9C8, then calls BA26 at BED5.
* - rx_completion_sets_session_timer: RX completion sets F9C5 (observed reload H'14) after the sixth byte is captured.
@@ -204,6 +207,8 @@ extern volatile u8 MEM8[0x10000];
* TX/autonomous report model candidate:
* - loc_BB43 -> loc_BA26: bytes 0..2 encode candidate logical index/report id; bytes 3..4 come from current_value_table_candidate; byte5 is 0x5A XOR checksum
* - observed overlay candidates: heartbeat_or_idle_report_candidate: 00 00 00 00 80 DA; call_button_report_candidate: 00 00 15 80 00 CF, 00 00 15 00 00 4F; camera_power_report_candidate: 00 00 07 80 00 DD
* - runtime confirmation: idle_heartbeat_report_runtime_confirmation: report H'0000 emits 00 00 00 00 80 DA; MOV:G.W #H'00 writes H'0000 to the queue slot
* - consistency idle_heartbeat_report_id_width: pass; Decompiler mnemonic MOV:G.W and emulator execution now agree that the H'00 immediate at loc_4067 is zero-extended to report H'0000.
* - caveat: Real captures supplied so far show only heartbeat/idle, call, and camera-power autonomous TX frames. Other panel controls may require a host/device request or state transition before the firmware reports them.
* - evidence: H'BB1C, H'BB20, H'BB2B, H'BB39, H'BB3F, H'BB43
* heartbeat/periodic resend candidate:
@@ -273,6 +278,16 @@ static bool sci1_candidate_idle_heartbeat_enqueue_gate_open(void)
return idle_timer_clear && rx_gate_open && queue_empty;
}
static void sci1_candidate_enqueue_idle_heartbeat_report(void)
{
if (!sci1_candidate_idle_heartbeat_enqueue_gate_open()) {
return;
}
/* loc_4067 writes MOV:G.W #H'00, so the queue report id is 0x0000. */
candidate_enqueue_report(0x0000u);
}
static bool sci1_candidate_periodic_resend_gate_open(void)
{
bool pending = (MEM8[0xFAA5u] & MEM8[0xFAA3u] & 0x80u) != 0u;