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sound/scsp.cpp: implement MSLC delayed sample updates

Status: Open.

#15584 In mamedev/mame;

· angelosa opened on Jun 23, 2026

captaven (deco32.cpp): video refresh 57.79965 Hz vs. 57.444 Hz on hardware (wrong htotal/vtotal)

Status: Open.

#15565 In mamedev/mame;

· dnwe opened on Jun 20, 2026

konami cpu missing register support in indexed addressing

Status: Open.

#15561 In mamedev/mame;

· jwestfall69 opened on Jun 20, 2026

machine/i8251.cpp - data_w() clears TxRDY but then instantly reasserts TxRDY if transmit buffer is empty

Status: Open.

#15560 In mamedev/mame;

· gm-matthew opened on Jun 19, 2026

MAME 0.288: Audit media for all 42880 systems: MAME crashes almost immediately on Windows 11 PC

Status: Open.

#15535 In mamedev/mame;

· maartenlangeveld opened on Jun 15, 2026

CHD CD images do not retain CATALOG data

Status: Open.

#15529 In mamedev/mame;

· greisch opened on Jun 15, 2026

.hfe support for 2HD drives

Status: Open.

#15473 In mamedev/mame;

· angelosa opened on Jun 9, 2026

"-output network" issue - wrong output

Status: Open.

#15463 In mamedev/mame;

· baritonomarchetto opened on Jun 7, 2026

[Crash] MAME 0.288 crashes at startup with std::bad_alloc on Windows 11

Status: Open.

#15452 In mamedev/mame;

· Fati98h opened on Jun 6, 2026

Model 2 lightgun games reload/miss when using optical lightguns on dark onscreen targets

Status: Open.

#15423 In mamedev/mame;

· Soopx opened on May 31, 2026

i386dasm.cpp: Support for VEX/EVEX prefixes

Status: Open.

#15420 In mamedev/mame;

· brycecherry75 opened on May 31, 2026

wd_fdc + z80: DRQ→NMI rising-edge timing allows nested NMI inside a BIOS handler that real WD1793+Z80 silicon doesn't permit — guidance on preferred fix architecture

Status: Open.

#15416 In mamedev/mame;

· davidlrand opened on May 30, 2026