mdavis@pro-sol.cts.COM (Morgan Davis) (02/14/88)
You can install a custom input routine with BASIC.SYSTEM under ProDOS by putting your assembly code somewhere safe in memory ($300 is okay if it's less than 200 bytes). Then all you do is: PRINT CHR$(4)"IN# A$300" Make sure your routine modifies only the accumulator, and the beginning of your routine should start with a CLD instruction. See Apple's BASIC Programming Reference (ProDOS) for more details.