Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-07-05 09:57:47 +03:00
Code Issues Actions 33 Packages Projects Releases Wiki Activity

floppy: Fix an annoyingly subtle write bug

Browse Source
This commit is contained in:
Olivier Galibert 2021-03-29 22:25:45 +02:00
parent 438edcd151
commit 6a2743a492
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/devices/imagedev/floppy.cpp
View File

@ -1157,14 +1157,16 @@ void floppy_image_device::write_flux(const attotime &start, const attotime &end,
buf.push_back(floppy_image::MG_N); buf.push_back(floppy_image::MG_N);
} }
uint32_t cur_mg;
if((buf[index] & floppy_image::TIME_MASK) == start_pos) { if((buf[index] & floppy_image::TIME_MASK) == start_pos) {
if(index) if(index)
index--; cur_mg = buf[index-1];
else else
index = buf.size() - 1; cur_mg = buf[buf.size() - 1];
} } else
cur_mg = buf[index];
uint32_t cur_mg = buf[index] & floppy_image::MG_MASK; cur_mg &= floppy_image::MG_MASK;
if(cur_mg == floppy_image::MG_N || cur_mg == floppy_image::MG_D) if(cur_mg == floppy_image::MG_N || cur_mg == floppy_image::MG_D)
cur_mg = floppy_image::MG_A; cur_mg = floppy_image::MG_A;
@ -1293,7 +1295,6 @@ void floppy_image_device::write_zone(uint32_t *buf, int &cells, int &index, uint
spos = epos; spos = epos;
} }
} }
} }
} }