jsmolka / eggvance Goto Github PK
View Code? Open in Web Editor NEWA Game Boy Advance emulator.
Home Page: https://smolka.dev/tags/eggvance
License: GNU General Public License v3.0
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matanlureyeggvance's Issues
Pokemon Sapphire hangs at the end of the intro.
Tested with a japanese ROM and a 1.1 USA ROM. In both cases the game will hang at the end of the intro scene.
Tonc blend demo: Blending not working for semi transparent objects
Pokemon Ruby / Sapphire: Black lines at top during new game sequence
Does not happen all the time.
The lines are part of BG1. The bug is caused by inconsistent values in BG1VOFS. Explicitly setting BG1VOFS before the sequence fixes this issue (link):
static void Task_NewGameSpeech1(u8 taskId)
{
Text_LoadWindowTemplate(&gWindowTemplate_81E6C3C);
InitMenuWindow((struct WindowTemplate *)&gMenuTextWindowTemplate);
// Other regsiters
+ REG_BG1VOFS = 0;
// Other functions
ScanlineEffect_Stop();
// Remaining functions
}Another potential fix is disabling the 'scanline effect' which is stopped in the previous function (link):
void ScanlineEffect_InitHBlankDmaTransfer(void)
{
+ return;
// Not called
}The most probably cause is a bad write to BG1VOFS between initializing the main menu and the new game sequence.
The scanline effect is initialized during the title screen (here). This results in an hblank DMA that continuously writes to BF1VOFS.
0 03004EF4 -> 04000016 (1)
0 03004EF6 -> 04000016 (1)
0 03004EF8 -> 04000016 (1)
0 03004EFA -> 04000016 (1)
0 03004EFC -> 04000016 (1)
0 03004EFE -> 04000016 (1)
0 03004F00 -> 04000016 (1)
0 03004F02 -> 04000016 (1)
0 03004F04 -> 04000016 (1)
0 03004F06 -> 04000016 (1)
0 03004F08 -> 04000016 (1)
0 03004F0A -> 04000016 (1)
0 03004F0C -> 04000016 (1)
0 03004F0E -> 04000016 (1)
0 03004F10 -> 04000016 (1)
0 03004F12 -> 04000016 (1)
0 03004F14 -> 04000016 (1)
0 03004F16 -> 04000016 (1)
0 03004F18 -> 04000016 (1)
0 03004F1A -> 04000016 (1)
0 03004F1C -> 04000016 (1)
0 03004F1E -> 04000016 (1)
0 03004F20 -> 04000016 (1)
0 03005562 -> 04000014 (1)
0 03005564 -> 04000016 (1)
0 03005566 -> 04000016 (1)
0 03005568 -> 04000016 (1)
0 0300556A -> 04000016 (1)
0 0300556C -> 04000016 (1)
Copied somewhere from PC = 0x080896ba.
src/scanline_effect.o(.text)
.text 0x0000000008089578 0x4e4 src/scanline_effect.o
0x0000000008089578 ScanlineEffect_Stop
0x00000000080895b8 ScanlineEffect_Clear
0x00000000080895f8 ScanlineEffect_SetParams
0x0000000008089668 ScanlineEffect_InitHBlankDmaTransfer
0x0000000008089930 ScanlineEffect_InitWave
This means that the write which causes the immediate DMA is in this function:
void ScanlineEffect_InitHBlankDmaTransfer(void)
{
if (gScanlineEffect.state == 0)
{
return;
}
else if (gScanlineEffect.state == 3)
{
gScanlineEffect.state = 0;
DmaStop(0);
sShouldStopWaveTask = TRUE;
}
else
{
DmaStop(0);
DmaSet(0, gScanlineEffect.dmaSrcBuffers[gScanlineEffect.srcBuffer], gScanlineEffect.dmaDest, gScanlineEffect.dmaControl);
gScanlineEffect.setFirstScanlineReg();
gScanlineEffect.srcBuffer ^= 1;
}
}
The wave get initialized here
if (!UpdatePaletteFade())
{
StartPokemonLogoShine(FALSE);
ScanlineEffect_InitWave(0, DISPLAY_HEIGHT, 4, 4, 0, SCANLINE_EFFECT_REG_BG1HOFS, TRUE);
SetMainCallback2(MainCB2);
}
break;
and writes zeros to the BG offset register. The last one happens to be non-zero sometimes.
The disassembly of ScanlineEffect_InitWave.
08089944 0000B5F0 push {r4,r5,r6,r7,lr}
08089946 00004657 mov r7,r10
08089948 0000464E mov r6,r9
0808994A 00004645 mov r5,r8
0808994C 0000B4E0 push {r5,r6,r7}
0808994E 0000B088 add sp,-0x20
08089950 00001C05 mov r5,r0
08089952 00009104 str r1,[sp,0x10]
08089954 00009810 ldr r0,[sp,0x40]
08089956 00004680 mov r8,r0
08089958 00009911 ldr r1,[sp,0x44]
0808995A 00004689 mov r9,r1
0808995C 00009812 ldr r0,[sp,0x48]
0808995E 00004682 mov r10,r0
08089960 0000062D lsl r5,r5,0x18
08089962 00000E2D lsr r5,r5,0x18
08089964 00009904 ldr r1,[sp,0x10]
08089966 00000609 lsl r1,r1,0x18
08089968 00009105 str r1,[sp,0x14]
0808996A 00000E08 lsr r0,r1,0x18
0808996C 00009003 str r0,[sp,0xC]
0808996E 00000611 lsl r1,r2,0x18
08089970 00000E09 lsr r1,r1,0x18
08089972 00009106 str r1,[sp,0x18]
08089974 0000061A lsl r2,r3,0x18
08089976 00000E12 lsr r2,r2,0x18
08089978 00009207 str r2,[sp,0x1C]
0808997A 00004641 mov r1,r8
0808997C 00000609 lsl r1,r1,0x18
0808997E 00000E09 lsr r1,r1,0x18
08089980 00004688 mov r8,r1
08089982 0000464B mov r3,r9
08089984 0000061B lsl r3,r3,0x18
08089986 00000E1B lsr r3,r3,0x18
08089988 00004699 mov r9,r3
0808998A 00004650 mov r0,r10
0808998C 00000600 lsl r0,r0,0x18
0808998E 00000E00 lsr r0,r0,0x18
08089990 00004682 mov r10,r0
08089992 0000F7FF bl <setup>
08089994 0000FE11 bl 0x80895B8
08089996 0000482E ldr r0,[0x8089A50]
08089998 00004448 add r0,r9
0808999A 00009000 str r0,[sp,0x0]
0808999C 0000482D ldr r0,[0x8089A54]
0808999E 00009001 str r0,[sp,0x4]
080899A0 00004669 mov r1,sp
080899A2 00002001 mov r0,0x1
080899A4 00007208 strb r0,[r1,0x8]
080899A6 00004668 mov r0,sp
080899A8 00002100 mov r1,0x0
080899AA 00007241 strb r1,[r0,0x9]
080899AC 00009800 ldr r0,[sp,0x0]
080899AE 00009901 ldr r1,[sp,0x4]
080899B0 00009A02 ldr r2,[sp,0x8]
080899B2 0000F7FF bl <setup>
080899B4 0000FE21 bl 0x80895F8
080899B6 00004828 ldr r0,[0x8089A58]
080899B8 00002100 mov r1,0x0
080899BA 0000F7F1 bl <setup>
080899BC 0000F867 bl 0x807AA8C
080899BE 00000600 lsl r0,r0,0x18
080899C0 00000E07 lsr r7,r0,0x18
080899C2 00004826 ldr r0,[0x8089A5C]
080899C4 000000BC lsl r4,r7,0x2
080899C6 000019E4 add r4,r4,r7
080899C8 000000E4 lsl r4,r4,0x3
080899CA 00001824 add r4,r4,r0
080899CC 00008125 strh r5,[r4,0x8]
080899CE 0000466B mov r3,sp
080899D0 0000899B ldrh r3,[r3,0xC]
080899D2 00008163 strh r3,[r4,0xA]
080899D4 00002080 mov r0,0x80
080899D6 00000040 lsl r0,r0,0x1
080899D8 00009906 ldr r1,[sp,0x18]
080899DA 0000F156 bl <setup>
080899DC 0000FF0D bl 0x81E07F8
080899DE 000081A0 strh r0,[r4,0xC]
080899E0 00002000 mov r0,0x0
080899E2 000081E0 strh r0,[r4,0xE]
080899E4 00004641 mov r1,r8
080899E6 00008221 strh r1,[r4,0x10]
080899E8 00008261 strh r1,[r4,0x12]
080899EA 0000464B mov r3,r9
080899EC 000082A3 strh r3,[r4,0x14]
080899EE 00004650 mov r0,r10
080899F0 000082E0 strh r0,[r4,0x16]
080899F2 0000481B ldr r0,[0x8089A60]
080899F4 00007607 strb r7,[r0,0x18]
080899F6 0000481B ldr r0,[0x8089A64]
080899F8 00002100 mov r1,0x0
080899FA 00007001 strb r1,[r0,0x0]
080899FC 00004C1A ldr r4,[0x8089A68]
080899FE 00009B03 ldr r3,[sp,0xC]
08089A00 00001B5E sub r6,r3,r5
08089A02 00000633 lsl r3,r6,0x18
08089A04 00000E1B lsr r3,r3,0x18
08089A06 00001C20 mov r0,r4
08089A08 00009906 ldr r1,[sp,0x18]
08089A0A 00009A07 ldr r2,[sp,0x1C]
08089A0C 0000F7FF bl <setup>
08089A0E 0000FF76 bl 0x80898FC
08089A10 00009803 ldr r0,[sp,0xC]
08089A12 00004285 cmp r5,r0
08089A14 0000DA13 bge 0x8089A3E
08089A16 00004915 ldr r1,[0x8089A6C]
08089A18 00001862 add r2,r4,r1
08089A1A 00000069 lsl r1,r5,0x1
08089A1C 000023F0 mov r3,0xF0
08089A1E 000000DB lsl r3,r3,0x3
08089A20 000018C8 add r0,r1,r3
08089A22 00001883 add r3,r0,r2
08089A24 00001889 add r1,r1,r2
08089A26 00001C22 mov r2,r4
08089A28 00001C35 mov r5,r6
08089A2A 00008810 ldrh r0,[r2,0x0]
08089A2C 00008008 strh r0,[r1,0x0]
08089A2E 00008810 ldrh r0,[r2,0x0]
08089A30 00008018 strh r0,[r3,0x0]
08089A32 00003202 add r2,0x2
08089A34 00003302 add r3,0x2
08089A36 00003102 add r1,0x2
08089A38 00003D01 sub r5,0x1
08089A3A 00002D00 cmp r5,0x0
08089A3C 0000D1F5 bne 0x8089A2A
08089A3E 00001C38 mov r0,r7
08089A40 0000B008 add sp,0x20
08089A42 0000BC38 pop {r3,r4,r5}
08089A44 00004698 mov r8,r3
08089A46 000046A1 mov r9,r4
08089A48 000046AA mov r10,r5
08089A4A 0000BCF0 pop {r4,r5,r6,r7}
08089A4C 0000BC02 pop {r1}
08089A4E 00004708 bx r1
08089A50 00000010 lsl r0,r2,0x0
08089A52 00000400 lsl r0,r0,0x10
08089A54 00000001 lsl r1,r0,0x0
08089A56 0000A260 add r2,=0x8089BD8
08089A58 00009735 str r7,[sp,0xD4]
08089A5A 00000808 lsr r0,r1,0x0
08089A5C 00004B20 ldr r3,[0x8089AE0]
08089A5E 00000300 lsl r0,r0,0xC
08089A60 00004DC0 ldr r5,[0x8089D64]
08089A62 00000300 lsl r0,r0,0xC
08089A64 0000FFA4 bl 0x838A9AE
08089A66 00000202 lsl r2,r0,0x8
08089A68 00005060 str r0,[r4,r1]
08089A6A 00000300 lsl r0,r0,0xC
08089A6C 0000FD80 bl 0x838A56E
08089A6E 0000FFFF bl 0x7E0AA6E
08089A70 0000B500 push {lr}
Mother 3: Softlock when sleeping
The game softlocks when trying to sleep (cannot exit anymore).
Same thing happens with mGBA. Pressing L + R + A resumes the game. The time until unpaused is much longer compared to mGBA. Not sure if that is an emulator bug.
Mother 3: Intro animation not working
The white bars at the top and bottom should slowly come into the frame. They just appear in my emulator.
Export the assembly code
After lurking a bit with the source code I saw the disassembler and that if I decomment disasm() in arm.cpp I get the assembly code on sheel so I can generate a file.
The problem is that is generating the one in that moment, I was looking to get the full code of a rom.
Do you think that is possible to add a parameter that export the code with the memory address?
Celeste: audio cracking on the right ear
There is a periodic on the right side. Happened somewhere between master commit 997 and 1014.
Similar noise happens in Top Gun - Combat Zones on the left side.
Regression since this commit: 82709d9
It happens consistently every ~2 seconds.
Was caused by effectively running late twice in the timer event.
Golden Sun layering issue
Golden.Sun.USA.Europe (1).zip
the carpet is occluding the character sprites, which obviously shouldn't happen.
Golden Sun makes clever usage of OBJ rendering behavior, that isn't properly documented in GBATEK.
It uses transparent OBJs to hijack the priority of the character OBJs.
This works because:
- OBJs are rendered in forward order
- higher priority OBJ pixels always update the OBJ buffer priority, even if the pixel transparent.
- lower priority OBJ pixels always write the OBJ buffer if it's currently transparent.
save file is courtesy of benderscuffy.
Top Gun Combat Zones: A button does not work in menu
The A button does not work in the menu.
Sennen Kazoku: Freezes before going to the intro
Regression which started with 00ecdfa. The IRQ cycle delay probably leads to a state deadlock.
Gunstar Super Heroes (U) sprite priority issues
this game is notorious for rendering incorrectly in many emulators.
the solution is simple: account for the per-scanline maximum cycle count for OBJs (as mentioned in GBATEK) and skip remaining OBJs / pixels if the limit is hit.
EDIT: if you don't do that yet, you also need to render OBJs in forward order.
Castlevania - Aria of Sorrow: Garbage values when entering the menu
They show for a small amount of time before proceeding into the menu.
DMAs shortly after hitting start in the first room:
Click
3 0 02011DDC -> 020121DC 256
3 0 0201261C -> 02012A1C 256
3 0 03002C60 -> 04000008 20
3 0 03000C58 -> 07000000 256
3 0 03007EDC -> 03000C58 512
3 0 03007EDC -> 03000058 768
3 0 03002C60 -> 02000070 2
3 0 03002C98 -> 02000078 4
3 0 03001458 -> 02011088 320
3 0 0200FEC4 -> 02010008 80
3 0 02011070 -> 02011078 2
3 0 02025468 -> 02010154 7
3 0 020115C8 -> 020115D0 4
3 0 020115D8 -> 020119D8 512
3 0 03007EA4 -> 020115C8 4
3 0 020123E4 -> 02012500 142
3 0 03007E9C -> 020123E4 142
3 0 02012C24 -> 02012D40 142
3 0 03007E9C -> 02012C24 142
3 0 02011DDC -> 02011FDC 256
3 0 0201261C -> 0201281C 256
3 0 02012E60 -> 02012F20 96
3 0 03007E9C -> 02012E60 96
3 0 02011DDC -> 020121DC 256
3 0 0201261C -> 02012A1C 256
3 0 03002C60 -> 04000008 20
3 0 03000C58 -> 07000000 256
3 0 03007EDC -> 03000C58 512
3 0 03007EDC -> 03000058 768
3 0 080E5C38 -> 0201261C 256
3 0 020153F8 -> 06000000 4096
DMAs shortly after hitting start in the second room:
Click
0 2 02007876 -> 04000010 1
3 0 0811A7D8 -> 020126DC 16
0 2 02007878 -> 04000010 1
0 2 0200787A -> 04000010 1
0 2 0200787C -> 04000010 1
0 2 0200787E -> 04000010 1
0 2 02007880 -> 04000010 1
0 2 02007882 -> 04000010 1
0 2 02007884 -> 04000010 1
0 2 02007886 -> 04000010 1
0 2 02007888 -> 04000010 1
0 2 0200788A -> 04000010 1
0 2 0200788C -> 04000010 1
0 2 0200788E -> 04000010 1
0 2 02007890 -> 04000010 1
3 0 03007E1C -> 020016F0 33
0 2 02007892 -> 04000010 1
0 2 02007894 -> 04000010 1
3 0 03007E20 -> 020034D8 33
0 2 02007896 -> 04000010 1
0 2 02007898 -> 04000010 1
0 2 0200789A -> 04000010 1
0 2 0200789C -> 04000010 1
0 2 0200789E -> 04000010 1
0 2 020078A0 -> 04000010 1
0 2 020078A2 -> 04000010 1
0 2 020078A4 -> 04000010 1
0 2 020078A6 -> 04000010 1
0 2 020078A8 -> 04000010 1
0 2 020078AA -> 04000010 1
0 2 020078AC -> 04000010 1
0 2 020078AE -> 04000010 1
0 2 020078B0 -> 04000010 1
0 2 020078B2 -> 04000010 1
0 2 020078B4 -> 04000010 1
0 2 020078B6 -> 04000010 1
0 2 020078B8 -> 04000010 1
0 2 020078BA -> 04000010 1
0 2 020078BC -> 04000010 1
0 2 020078BE -> 04000010 1
0 2 020078C0 -> 04000010 1
0 2 020078C2 -> 04000010 1
0 2 020078C4 -> 04000010 1
0 2 020078C6 -> 04000010 1
0 2 020078C8 -> 04000010 1
0 2 020078CA -> 04000010 1
0 2 020078CC -> 04000010 1
0 2 020078CE -> 04000010 1
0 2 020078D0 -> 04000010 1
0 2 020078D2 -> 04000010 1
0 2 020078D4 -> 04000010 1
0 2 020078D6 -> 04000010 1
0 2 020078D8 -> 04000010 1
0 2 020078DA -> 04000010 1
0 2 020078DC -> 04000010 1
0 2 020078DE -> 04000010 1
0 2 020078E0 -> 04000010 1
0 2 020078E2 -> 04000010 1
0 2 020078E4 -> 04000010 1
0 2 020078E6 -> 04000010 1
0 2 020078E8 -> 04000010 1
0 2 020078EA -> 04000010 1
0 2 020078EC -> 04000010 1
0 2 020078EE -> 04000010 1
0 2 020078F0 -> 04000010 1
0 2 020078F2 -> 04000010 1
0 2 020078F4 -> 04000010 1
0 2 020078F6 -> 04000010 1
0 2 020078F8 -> 04000010 1
0 2 020078FA -> 04000010 1
0 2 020078FC -> 04000010 1
0 2 020078FE -> 04000010 1
0 2 02007900 -> 04000010 1
0 2 02007902 -> 04000010 1
0 2 02007904 -> 04000010 1
0 2 02007906 -> 04000010 1
0 2 02007908 -> 04000010 1
3 0 02011DDC -> 020121DC 256
0 2 0200790A -> 04000010 1
3 0 0201261C -> 02012A1C 256
0 2 0200790C -> 04000010 1
0 2 0200790E -> 04000010 1
0 2 02007910 -> 04000010 1
0 2 02007912 -> 04000010 1
0 2 02007914 -> 04000010 1
0 2 02007916 -> 04000010 1
0 2 02007918 -> 04000010 1
0 2 0200791A -> 04000010 1
0 2 0200791C -> 04000010 1
0 2 0200791E -> 04000010 1
0 2 02007920 -> 04000010 1
0 2 02007922 -> 04000010 1
0 2 02007924 -> 04000010 1
0 2 02007926 -> 04000010 1
0 2 02007928 -> 04000010 1
0 2 0200792A -> 04000010 1
0 2 0200792C -> 04000010 1
0 2 0200792E -> 04000010 1
0 2 02007930 -> 04000010 1
0 2 02007932 -> 04000010 1
0 2 02007934 -> 04000010 1
0 2 02007936 -> 04000010 1
0 2 02007938 -> 04000010 1
0 2 0200793A -> 04000010 1
0 2 0200793C -> 04000010 1
0 2 0200793E -> 04000010 1
0 2 02007940 -> 04000010 1
0 2 02007942 -> 04000010 1
0 2 02007944 -> 04000010 1
0 2 02007946 -> 04000010 1
0 2 02007948 -> 04000010 1
0 2 0200794A -> 04000010 1
0 2 0200794C -> 04000010 1
0 2 0200794E -> 04000010 1
0 2 02007950 -> 04000010 1
0 2 02007952 -> 04000010 1
0 2 02007954 -> 04000010 1
0 2 02007956 -> 04000010 1
0 2 02007958 -> 04000010 1
0 2 0200795A -> 04000010 1
0 2 0200795C -> 04000010 1
0 2 0200795E -> 04000010 1
0 2 02007960 -> 04000010 1
0 2 02007962 -> 04000010 1
0 2 02007964 -> 04000010 1
0 2 02007966 -> 04000010 1
0 2 02007968 -> 04000010 1
0 2 0200796A -> 04000010 1
0 2 0200796C -> 04000010 1
0 2 0200796E -> 04000010 1
0 2 02007970 -> 04000010 1
0 2 02007972 -> 04000010 1
0 2 02007974 -> 04000010 1
0 2 02007976 -> 04000010 1
0 2 02007978 -> 04000010 1
0 2 0200797A -> 04000010 1
0 2 0200797C -> 04000010 1
0 2 0200797E -> 04000010 1
0 2 02007980 -> 04000010 1
0 2 02007982 -> 04000010 1
0 2 02007984 -> 04000010 1
0 2 02007986 -> 04000010 1
0 2 02007988 -> 04000010 1
0 2 0200798A -> 04000010 1
0 2 0200798C -> 04000010 1
0 2 0200798E -> 04000010 1
0 2 02007990 -> 04000010 1
0 2 02007992 -> 04000010 1
0 2 02007994 -> 04000010 1
0 2 02007996 -> 04000010 1
0 2 02007998 -> 04000010 1
0 2 0200799A -> 04000010 1
0 2 0200799C -> 04000010 1
0 2 0200799E -> 04000010 1
0 2 020079A0 -> 04000010 1
0 2 020079A2 -> 04000010 1
0 2 020079A4 -> 04000010 1
0 2 020079A6 -> 04000010 1
0 2 020079A8 -> 04000010 1
0 2 020079AA -> 04000010 1
0 2 020079AC -> 04000010 1
3 0 03002C60 -> 04000008 20
3 0 0200786C -> 04000010 1
3 0 02012A1C -> 05000000 256
3 0 03000C58 -> 07000000 256
3 0 03007EDC -> 03000C58 512
3 0 03007EDC -> 03000058 768
NanoBoy in the first room:
Click
3 0 03002C60 -> 04000008 20
3 0 03000C58 -> 07000000 256
3 0 03007EDC -> 03000C58 512
3 0 03007EDC -> 03000058 768
3 0 03002C60 -> 02000070 2
3 0 03002C98 -> 02000078 4
3 0 03001458 -> 02011088 320
3 0 0200FEC4 -> 02010008 80
3 0 02011070 -> 02011078 2
3 0 02025468 -> 02010154 7
3 0 020115C8 -> 020115D0 4
3 0 020115D8 -> 020119D8 512
3 0 03007EA4 -> 020115C8 4
3 0 020123E4 -> 02012500 142
3 0 03007E9C -> 020123E4 142
3 0 02012C24 -> 02012D40 142
3 0 03007E9C -> 02012C24 142
3 0 02011DDC -> 02011FDC 256
3 0 0201261C -> 0201281C 256
3 0 020127CE -> 020129CE 39
3 0 02012E60 -> 02012F20 96
3 0 03007E9C -> 02012E60 96
3 0 02011DDC -> 020121DC 256
3 0 0201261C -> 02012A1C 256
3 0 03002C60 -> 04000008 20
3 0 03000C58 -> 07000000 256
3 0 03007EDC -> 03000C58 512
3 0 03007EDC -> 03000058 768
3 0 080E5C38 -> 0201261C 256
3 0 020153F8 -> 06000000 4096
3 0 02016B82 -> 0600178A 1083
3 0 020153F8 -> 0600A000 4096
3 0 02016662 -> 0600B26A 1739
3 0 020153F8 -> 06010200 256
3 0 020155F8 -> 06010600 256
3 0 020157F8 -> 06010A00 256
3 0 020159F8 -> 06010E00 256
3 0 02015BF8 -> 06011200 256
3 0 02015DF8 -> 06011600 256
3 0 02015FF8 -> 06011A00 256
3 0 020161F8 -> 06011E00 256
3 0 020163F8 -> 06012200 256
3 0 020165F8 -> 06012600 256
3 0 020167F8 -> 06012A00 256
3 0 020169F8 -> 06012E00 256
3 0 02016BF8 -> 06013200 256
3 0 02016DF8 -> 06013600 256
3 0 02016FF8 -> 06013A00 256
3 0 020171F8 -> 06013E00 256
3 0 0820C318 -> 02011F1C 16
3 0 0820C338 -> 02011F3C 16
3 0 0820C358 -> 02011F5C 16
3 0 0820C2F8 -> 02011F7C 16
3 0 0820C2D8 -> 02011F9C 16
NanoBoy in the second room:
Click
3 0 03002C60 -> 04000008 20
3 0 0200786C -> 04000010 1
3 0 03000C58 -> 07000000 256
3 0 03007EDC -> 03000C58 512
3 0 03007EDC -> 03000058 768
0 2 0200786E -> 04000010 1
0 2 02007870 -> 04000010 1
0 2 02007872 -> 04000010 1
0 2 02007874 -> 04000010 1
0 2 02007876 -> 04000010 1
0 2 02007878 -> 04000010 1
0 2 0200787A -> 04000010 1
3 0 03002C60 -> 02000070 2
3 0 03002C98 -> 02000078 4
0 2 0200787C -> 04000010 1
3 0 03001458 -> 02011088 320
0 2 0200787E -> 04000010 1
3 0 030016BC -> 020112EC 167
0 2 02007880 -> 04000010 1
3 0 0200FEC4 -> 02010008 80
3 0 02011070 -> 02011078 2
3 0 02025468 -> 02010154 7
0 2 02007882 -> 04000010 1
3 0 02025478 -> 02010164 3
0 2 02007884 -> 04000010 1
3 0 020115C8 -> 020115D0 4
0 2 02007886 -> 04000010 1
3 0 020115D8 -> 020119D8 512
0 2 02007888 -> 04000010 1
3 0 0201176A -> 02011B6A 311
0 2 0200788A -> 04000010 1
3 0 02011904 -> 02011D04 106
3 0 03007EA4 -> 020115C8 4
3 0 020123E4 -> 02012500 142
0 2 0200788C -> 04000010 1
3 0 0201246C -> 02012588 74
3 0 03007E9C -> 020123E4 142
3 0 02012C24 -> 02012D40 142
0 2 0200788E -> 04000010 1
3 0 02012C42 -> 02012D5E 127
3 0 03007E9C -> 02012C24 142
0 2 02007890 -> 04000010 1
3 0 03007E9C -> 02012D02 31
3 0 02011DDC -> 02011FDC 256
0 2 02007892 -> 04000010 1
3 0 02011F2E -> 0201212E 87
3 0 0201261C -> 0201281C 256
0 2 02007894 -> 04000010 1
3 0 020126E4 -> 020128E4 156
3 0 02012E60 -> 02012F20 96
0 2 02007896 -> 04000010 1
3 0 02012EA0 -> 02012F60 64
3 0 03007E9C -> 02012E60 96
0 2 02007898 -> 04000010 1
0 2 0200789A -> 04000010 1
0 2 0200789C -> 04000010 1
0 2 0200789E -> 04000010 1
0 2 020078A0 -> 04000010 1
0 2 020078A2 -> 04000010 1
0 2 020078A4 -> 04000010 1
0 2 020078A6 -> 04000010 1
0 2 020078A8 -> 04000010 1
0 2 020078AA -> 04000010 1
3 0 02011DDC -> 020121DC 256
0 2 020078AC -> 04000010 1
3 0 02011EFC -> 020122FC 112
3 0 0201261C -> 02012A1C 256
0 2 020078AE -> 04000010 1
3 0 020126B0 -> 02012AB0 182
0 2 020078B0 -> 04000010 1
3 0 03002C60 -> 04000008 20
3 0 03000C58 -> 07000000 256
3 0 03007EDC -> 03000C58 512
3 0 03007EDC -> 03000058 768
3 0 080E5C38 -> 0201261C 256
3 0 020153F8 -> 06000000 4096
3 0 020153F8 -> 0600A000 4096
3 0 0201662E -> 0600B236 1765
3 0 020153F8 -> 06010200 256
3 0 020155F8 -> 06010600 256
3 0 020157F8 -> 06010A00 256
3 0 020159F8 -> 06010E00 256
3 0 02015BF8 -> 06011200 256
3 0 02015DF8 -> 06011600 256
3 0 02015FF8 -> 06011A00 256
3 0 020161F8 -> 06011E00 256
3 0 020163F8 -> 06012200 256
3 0 020165F8 -> 06012600 256
3 0 020167F8 -> 06012A00 256
3 0 020169F8 -> 06012E00 256
3 0 02016BF8 -> 06013200 256
3 0 02016DF8 -> 06013600 256
3 0 02016FF8 -> 06013A00 256
3 0 020171F8 -> 06013E00 256
3 0 0820C318 -> 02011F1C 16
3 0 0820C338 -> 02011F3C 16
3 0 0820C358 -> 02011F5C 16
3 0 0820C2F8 -> 02011F7C 16
3 0 0820C2D8 -> 02011F9C 16
Mario & Luigi - Superstar Saga: Random white noise
Random white noise happens after Nintendo logo.
Regression happened sometime between commit 986 and 997.
Broken in fb919b2.
Golden Sun: Intro sound is worse compared to sequel
The Nintendo intro bleep (channel 1) is way worse compared to Golden Sun - The Lost Age.
Game A writes to channel 1:
800008000000
878244800008
87C294800008
87C224800008
80C208800008
Game B writes to channel 1:
800008000000
878254800008
87C294800008
87C224800008
80C208800008
The frequence is slightly different but the bad sound persists even when forcing the value to 0x54.
The written data results in the following sequence:
Game A:
Sq1: form 0 | frequency 0
Env: volume 0 | timer 0 | increase 1
Len: timer 64 | expire 0
Sq1: form 2 | frequency 1922
Env: volume 4 | timer 4 | increase 0
Len: timer 64 | expire 0
Env: volume 3
Sq1: form 2 | frequency 1986
Env: volume 9 | timer 4 | increase 0
Len: timer 64 | expire 0
Env: volume 8
Env: volume 7
Env: volume 6
Env: volume 5
Env: volume 4
Env: volume 3
Env: volume 2
Sq1: form 2 | frequency 1986
Env: volume 2 | timer 4 | increase 0
Len: timer 64 | expire 0
Env: volume 1
Env: volume 0
Sq1: form 2 | frequency 194
Env: volume 0 | timer 0 | increase 1
Len: timer 64 | expire 0
Game B:
Sq1: form 0 | frequency 0
Env: volume 0 | timer 0 | increase 1
Len: timer 64 | expire 0
Sq1: form 2 | frequency 1922
Env: volume 5 | timer 4 | increase 0
Len: timer 64 | expire 0
Env: volume 4
Sq1: form 2 | frequency 1986
Env: volume 9 | timer 4 | increase 0
Len: timer 64 | expire 0
Env: volume 8
Env: volume 7
Env: volume 6
Env: volume 5
Env: volume 4
Env: volume 3
Env: volume 2
Sq1: form 2 | frequency 1986
Env: volume 2 | timer 4 | increase 0
Len: timer 64 | expire 0
Env: volume 1
Env: volume 0
Sq1: form 2 | frequency 194
Env: volume 0 | timer 0 | increase 1
Len: timer 64 | expire 0
The output should be almost identical so I suspect this to be a resampling problem.
Both games still have different sound output when removing external things like BIAS and even hardcoding the frequency.
It appears that halting causes the problem. A uses halting while B doesn't. Removing the halt state in A fixes the audio problems. Halting the CPU results in single runs of 960 cycles which cause the sample function in the APU to run twice sometimes. Although this shouldn't be a problem, it is. Splitting the run function into single parts fixes the issue.
uint visible = 160;
while (visible--)
{
arm.run(100);
arm.run(100);
arm.run(100);
arm.run(100);
arm.run(100);
arm.run(100);
arm.run(100);
arm.run(100);
arm.run(100);
arm.run( 60);
ppu.scanline();
ppu.hblank();
arm.run(100);
arm.run(100);
arm.run( 72);
ppu.next();
}
Running 960 at once also ticks the sequencer 960 times. The square channel calculated it's values and this value is now samples twice with the intermediate step missing.
Final Fantasy VI Advance: Continuous typing sound during intro
There is a continuous typing sound during the intro even when there shouldn't be any sound at all.
The sound is produced by square 1.
Writes to the channel:
3 0000'0000'0800'0000
5 0000'8000'0800'0000
0 0000'8000'0800'0008
2 0000'8000'0800'0008
4 0000'80E4'0800'0008
5 0000'04E4'0800'0008
3 0000'04E4'0800'0008
5 0000'84E4'0800'0008
3 0000'84E4'0800'0008
5 0000'80E4'0800'0008
0 0000'80E4'0800'0008
2 0000'80E4'0800'0008
4 0000'80E4'0800'0008
-------------------------- should end around here
5 0000'04E4'0800'0008
3 0000'04E4'0800'0008
5 0000'84E4'0800'0008
3 0000'84E4'0800'0008
5 0000'80E4'0800'0008
0 0000'80E4'0800'001F
1 0000'80E4'0800'001F
2 0000'80E4'083F'001F
3 0000'80E4'2F3F'001F
4 0000'8000'2F3F'001F
5 0000'0000'2F3F'001F
Mega Man Zero: No sound
It uses FIFO_A for sound and reads from 0x0202F0F0 with DMA1. The timer properly triggers but the FIFO gets filled with zeros all the time.
ANDS instruction has no effect on C flag
mov r1, #0x80000000
mov r4, #0x1
ands r0, r1, r1, lsl r4I think the state of cpsr after execute arm code above is : [N:0, Z: 1, C: 1, V:0] --> 0x6
But I found that eggvance give me: [N:0, Z: 1, C: 0, V:0] --> 0x4
After some code tracing, There is a piece of code make me confuse:
src/arm/instr_arm.cpp, line 75 :
constexpr bool kLogical =
kOpcode == kOpcodeAdd // ?
|| kOpcode == kOpcodeEor
|| kOpcode == kOpcodeOrr
|| kOpcode == kOpcodeMov
|| kOpcode == kOpcodeBic
|| kOpcode == kOpcodeMvn
|| kOpcode == kOpcodeTst
|| kOpcode == kOpcodeTeq;
Do you mean KOpcodeAnd?
Castlevania - Aria of Sorrow: Cloud blending problems
Attribute NanoboyAdvance
It always seemed to me that eggvance has taken strong inspiration from NanoboyAdvance from the get go.
The latest case, the RTC implementation, is a clear case to me. The code is pretty much the exact same except for some minor naming and style differences and fewer comments. It follows the exact same structure and logic.
NanoboyAdvance:
https://github.com/fleroviux/NanoboyAdvance/blob/master/source/emulator/cartridge/gpio/rtc.cpp
In the past I've looked over this because a) NanoboyAdvance was credited to some extent in the README (while now any credit is gone) and b) it was less clear cut that some code is a direct copy of mine instead of merely being inspired.
Therefore I kindly ask to add proper attribution.
BIOS intro: bad sound
The last bleep in the BIOS intro sounds distorted / metallic. This can be fixed by splitting the long arm.run(960) into smaller 100 cycle chunks (see #14). The sound is provided by the FIFO so it's most likely a timer issue.
The bug is caused by the current layout of the tick function.
void Arm::tick(int cycles)
{
this->cycles -= cycles;
if (state & kStateTimer)
timer.run(cycles);
if (irq.delaying)
{
irq.delay -= cycles;
if (irq.delay < 0)
irq.delay = 0;
}
apu.run(cycles);
}Running the timer first with large values skipped some samples and caused the metallic sound. Running 100 cycles max each step reduced that probability and mitigated the bug. Another way to do this is switching the timer.run and apu.run positions. I will solve this bug with the upcoming scheduler.
Acrobat Kid: Menu blending problems
The Legend of Zelda - A Link To The Past & Four Swords: Flickering background in choose game screen
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