Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 08:49:55 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

m6809: Simplify disassembly of pushes and pulls of both A and B

Browse Source
This commit is contained in:
AJR 2022-07-22 08:10:40 -04:00
parent 0fafaf0dde
commit 690dba1c64
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/devices/cpu/m6809/6x09dasm.cpp
View File

@ -155,8 +155,8 @@ offs_t m6x09_base_disassembler::disassemble(std::ostream &stream, offs_t pc, con
if (pb & 0x08)
util::stream_format(stream, "%sDP", (pb&0xf0)?",":"");
if (pb & 0x04)
util::stream_format(stream, "%sB", (pb&0xf8)?",":"");
if (pb & 0x02)
util::stream_format(stream, "%s%s", (pb&0xf8)?",":"", (pb & 0x02) ? "D" : "B");
else if (pb & 0x02)
util::stream_format(stream, "%sA", (pb&0xfc)?",":"");
if (pb & 0x01)
util::stream_format(stream, "%sCC", (pb&0xfe)?",":"");
@ -168,8 +168,8 @@ offs_t m6x09_base_disassembler::disassemble(std::ostream &stream, offs_t pc, con
if (pb & 0x01)
util::stream_format(stream, "CC");
if (pb & 0x02)
util::stream_format(stream, "%sA", (pb&0x01)?",":"");
if (pb & 0x04)
util::stream_format(stream, "%s%s", (pb&0x01)?",":"", (pb & 0x04) ? "D" : "A");
else if (pb & 0x04)
util::stream_format(stream, "%sB", (pb&0x03)?",":"");
if (pb & 0x08)
util::stream_format(stream, "%sDP", (pb&0x07)?",":"");