Fw: More ???s

Bruce Plecan nacelp at bright.net
Sat May 29 19:04:40 GMT 1999


9500 would mean to start something new, by jumping to a subroutine?.

The value at L01E6  "load to accumulator A"  means to place it at a location
for further use.

Now when it says to compare to memory what is that?.....

Branch set carry?.

Add memory to A.

Knowing what is stored at  L01E6, ie a timing value would be a clue about
what is being looked at?.

| 9500    L9500:  jsr     LD776        Jump to subroutine
| 9503            ldaa    L01E6            Load Accumulator A
| 9506            cmpa    #0x28           Compare A to memory
| 9508            bcs     L950C            Branch if carry set
| 950A            adda    #0x9C          Add memory to A
| 950C    L950C:  rts                       Return from Subroutine

Grumpier
| 950D    L950D:  lds     #0x02FF  Load Stack Pointer






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