Register parameters
| Code Block | ||||
|---|---|---|---|---|
| ||||
IN:
A = 1, for fast bank switching
DE = address to copy code into
HL = 0, for code to terminate with RET
HL <> 0, for code to terminate with JP (HL)
C = segment for bank switching (MS_Sx)
OUT:
Fc = 0
Registers changed after return:
..BCDEHL/IXIY same
AF....../.... different
The OS_Fc fast bank switching code has now been established.
Subsequent calls to OS_Fc with:
IN:
A = bank to bind to segment specified by OS_Fc initialization
OUT:
AFBCDEHL/IXIY/afbcdehl same
......../..../........ different |
...