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Diffstat (limited to '')
| -rw-r--r-- | src/blk.asm | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/blk.asm b/src/blk.asm index 2be961e..76561da 100644 --- a/src/blk.asm +++ b/src/blk.asm @@ -34,6 +34,8 @@ ENDM ; ----------------------------------------------------------------------------- read_block:: ld c, a + di ; the tick ISR pushes on SP, which points into + ; the $A000 window we are about to remap srl a srl a srl a @@ -54,6 +56,7 @@ read_block:: dec b jr nz, .cp restore_bank ; inline - no stack while the disk bank is mapped + ei ret ; ----------------------------------------------------------------------------- @@ -61,6 +64,7 @@ read_block:: ; ----------------------------------------------------------------------------- write_block:: ld c, a + di ; see read_block srl a srl a srl a @@ -81,6 +85,7 @@ write_block:: dec b jr nz, .cp restore_bank + ei ret ; ============================================================================= |