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GDMA during mode 3 writes to both banks, list AGB_E as a future model

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This commit is contained in:
Lior Halphon 2022-03-09 00:32:50 +02:00
parent 0925b06555
commit 5e119548e9
3 changed files with 21 additions and 11 deletions
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13
Cocoa/Preferences.xib
View File

@ -524,14 +524,15 @@
<popUpButton verticalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="3Dl-S6-O7c">
<rect key="frame" x="30" y="17" width="257" height="22"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" flexibleMinY="YES"/>
<popUpButtonCell key="cell" type="push" title="CPU AGB A" bezelStyle="rounded" alignment="left" lineBreakMode="truncatingTail" state="on" borderStyle="borderAndBezel" tag="519" imageScaling="proportionallyDown" inset="2" autoenablesItems="NO" selectedItem="8bk-wP-Cbr" id="EhC-I2-5Th">
<popUpButtonCell key="cell" type="push" title="CPU AGB 0 (Early GBA)" bezelStyle="rounded" alignment="left" lineBreakMode="truncatingTail" borderStyle="borderAndBezel" tag="518" imageScaling="proportionallyDown" inset="2" autoenablesItems="NO" selectedItem="75z-Yy-XaY" id="EhC-I2-5Th">
<behavior key="behavior" lightByBackground="YES" lightByGray="YES"/>
<font key="font" metaFont="menu"/>
<menu key="menu" autoenablesItems="NO" id="b2b-jo-SrI">
<items>
<menuItem title="CPU AGB 0" tag="518" enabled="NO" id="75z-Yy-XaY"/>
<menuItem title="CPU AGB A" state="on" tag="519" id="8bk-wP-Cbr"/>
<menuItem title="CPU AGB B (Game Boy Advance SP)" tag="520" enabled="NO" id="jIE-v4-768"/>
<menuItem title="CPU AGB 0 (Early GBA)" tag="518" enabled="NO" id="75z-Yy-XaY"/>
<menuItem title="CPU AGB A (GBA, GB Player)" state="on" tag="519" id="8bk-wP-Cbr"/>
<menuItem title="CPU AGB B (GBA SP)" tag="520" enabled="NO" id="jIE-v4-768"/>
<menuItem title="CPU AGB E (Late GBA SP, GB Player)" tag="521" enabled="NO" id="w7s-kh-HaZ"/>
</items>
</menu>
</popUpButtonCell>
@ -636,7 +637,7 @@
<autoresizingMask key="autoresizingMask" widthSizable="YES" flexibleMinY="YES"/>
<clipView key="contentView" focusRingType="none" ambiguous="YES" drawsBackground="NO" id="AMs-PO-nid">
<rect key="frame" x="1" y="1" width="255" height="209"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<autoresizingMask key="autoresizingMask"/>
<subviews>
<tableView focusRingType="none" verticalHuggingPriority="750" allowsExpansionToolTips="YES" columnAutoresizingStyle="lastColumnOnly" columnReordering="NO" columnResizing="NO" multipleSelection="NO" emptySelection="NO" autosaveColumns="NO" typeSelect="NO" id="UDd-IJ-fxX">
<rect key="frame" x="0.0" y="0.0" width="255" height="209"/>
@ -1112,7 +1113,7 @@
</customObject>
</objects>
<resources>
<image name="AppIcon" width="128" height="128"/>
<image name="AppIcon" width="512" height="512"/>
<image name="CPU" width="32" height="32"/>
<image name="Display" width="32" height="32"/>
<image name="Joypad" width="32" height="32"/>

1
Core/gb.h
View File

@ -119,6 +119,7 @@ typedef enum {
GB_MODEL_AGB_A = 0x207,
GB_MODEL_AGB = GB_MODEL_AGB_A,
//GB_MODEL_AGB_B = 0x208
//GB_MODEL_AGB_E = 0x209
} GB_model_t;
enum {

18
Core/memory.c
View File

@ -1796,8 +1796,13 @@ void GB_hdma_run(GB_gameboy_t *gb)
}
gb->hdma_current_src++;
GB_advance_cycles(gb, cycles);
if (gb->addr_for_hdma_conflict == 0xFFFF /* || (gb->model == GB_MODEL_AGB_B && gb->cgb_double_speed) */) {
gb->vram[vram_base + (gb->hdma_current_dest++ & 0x1FFF)] = byte;
if (gb->addr_for_hdma_conflict == 0xFFFF /* || (gb->model >= GB_MODEL_AGB_B && gb->cgb_double_speed) */) {
uint16_t addr = (gb->hdma_current_dest++ & 0x1FFF);
gb->vram[vram_base + addr] = byte;
// TODO: vram_write_blocked might not be the correct timing
if (gb->vram_write_blocked /* && gb->model < GB_MODEL_AGB_B */) {
gb->vram[(vram_base ^ 0x2000) + addr] = byte;
}
}
else {
if (gb->model == GB_MODEL_CGB_E || gb->cgb_double_speed) {
@ -1805,9 +1810,12 @@ void GB_hdma_run(GB_gameboy_t *gb)
These corruptions revision (unit?) specific in single speed. They happen only on my CGB-E.
*/
gb->addr_for_hdma_conflict &= 0x1FFF;
// Can't write to even bitmap bytes in single speed mode
if (gb->cgb_double_speed || gb->addr_for_hdma_conflict >= 0x1900 || (gb->addr_for_hdma_conflict & 1)) {
gb->vram[vram_base + (gb->hdma_current_dest & gb->addr_for_hdma_conflict & 0x1FFF)] = byte;
// TODO: there are *some* scenarions in single speed mode where this write doesn't happen. What's the logic?
uint16_t addr = (gb->hdma_current_dest & gb->addr_for_hdma_conflict & 0x1FFF);
gb->vram[vram_base + addr] = byte;
// TODO: vram_write_blocked might not be the correct timing
if (gb->vram_write_blocked /* && gb->model < GB_MODEL_AGB_B */) {
gb->vram[(vram_base ^ 0x2000) + addr] = byte;
}
}
gb->hdma_current_dest++;