diff options
Diffstat (limited to 'source/zx81.c')
| -rw-r--r-- | source/zx81.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/source/zx81.c b/source/zx81.c index fb6f801..7aa5380 100644 --- a/source/zx81.c +++ b/source/zx81.c @@ -982,6 +982,13 @@ Z80Byte ZX81ReadPort(Z80 *z80, Z80Word port) b=matrix[7]; break; } + + /* Some code expects some of the top bits set... Of course, whether + or not this may be worse as other code doesn't expect the bits, + we shall find out! + */ + b |= 0x60; + break; default: |