Try to do what you said but fail. Any comment which the command should be ???

[kwccoin]

Really need at least a few or even one example.

You casually talk about it but it does not work based on what you said.

Please include some examples how to use it.

    (ql:quickload "cl-6502") ; :6502)
    (in-package :cl-6502)
    (asm "brk")
    
    (setf (get-range 0) *my-bytevector*)
    ; my-bytevector is unbound
    (setf (6502:cpu-pc *cpu*) 0)
    (run *cpu*)
    ; error (run *cpu*)
    (step-cpu *cpu* (get-byte (cpu-pc *cpu*)))
    ; error (step-cpu *cpu* (get-byte (cpu-pc *cpu*)))
    (reset)
    ; error (reset)

I guess experience lisp user know what you said but beginner like me can't. Not sure what I should do next.

BTW, I did can load the cl-6502 and amending your readme using "test" instead of "tests" it seems sort of ok as below.

Still not sure how to proceed ... <---

[kwccoin]

After correcting the spelling (reading your quicklisp doc), the followings are ok

** but still not sure how to proceed with actually using the package. <--**

(ql:quickload :cl-6502)
(ql:quickload :cl-6502-test) ; note no "s" here unlike readme
(ql:quickload :fiveam) ; seems ok
(asdf:oos 'asdf:test-op 'cl-6502) ; ok but not test anything

CL-USER> (ql:quickload :cl-6502-test)
To load "cl-6502-test":
  Load 1 ASDF system:
    cl-6502-test
; Loading "cl-6502-test"
.....
(:CL-6502-TEST)
CL-USER> (asdf:oos 'asdf:test-op 'cl-6502)
WARNING: PARSE-VERSION: "0.9.8-dev" doesn't follow asdf version numbering convention
WARNING: Invalid :version specifier "0.9.8-dev" for component "cl-6502" from file #P"/Users/ngcchk/quicklisp/local-projects/cl-6502/cl-6502.asd", using NIL instead
WARNING: Invalid :version specifier "0.9.8-dev" for component "cl-6502" from file #P"/Users/ngcchk/quicklisp/local-projects/cl-6502/cl-6502.asd", using NIL instead
WARNING: System definition file #P"/Users/ngcchk/quicklisp/local-projects/cl-6502/cl-6502.asd" contains definition for system "cl-6502-test". Please only define "cl-6502" and secondary systems with a name starting with "cl-6502/" (e.g. "cl-6502/test") in that file.
WARNING: PARSE-VERSION: "0.9.8-dev" doesn't follow asdf version numbering convention
WARNING: Invalid :version specifier "0.9.8-dev" for component "cl-6502" from file #P"/Users/ngcchk/quicklisp/local-projects/cl-6502/cl-6502.asd", using NIL instead
WARNING: Invalid :version specifier "0.9.8-dev" for component "cl-6502" from file #P"/Users/ngcchk/quicklisp/local-projects/cl-6502/cl-6502.asd", using NIL instead
WARNING: System definition file #P"/Users/ngcchk/quicklisp/local-projects/cl-6502/cl-6502.asd" contains definition for system "cl-6502-test". Please only define "cl-6502" and secondary systems with a name starting with "cl-6502/" (e.g. "cl-6502/test") in that file.
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:PREPARE-OP
                                                     "cl-6502-test"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                                      "cl-6502") wasn't done yet!
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:PREPARE-OP
                                                     "cl-6502-test"
                                                     "fixtures"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                                  "cl-6502-test"
                                                                                  "packages") wasn't done yet!
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:PREPARE-OP
                                                     "cl-6502-test"
                                                     "assembler"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                                   "cl-6502-test"
                                                                                   "fixtures") wasn't done yet!
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:PREPARE-OP
                                                     "cl-6502-test"
                                                     "disassembler"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                                      "cl-6502-test"
                                                                                      "assembler") wasn't done yet!
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:PREPARE-OP
                                                     "cl-6502-test"
                                                     "parser"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                                "cl-6502-test"
                                                                                "disassembler") wasn't done yet!
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:PREPARE-OP
                                                     "cl-6502-test"
                                                     "opcodes"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                                 "cl-6502-test"
                                                                                 "parser") wasn't done yet!
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:PREPARE-OP
                                                     "cl-6502-test"
                                                     "jit"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                             "cl-6502-test"
                                                                             "opcodes") wasn't done yet!
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:PREPARE-OP
                                                     "cl-6502-test"
                                                     "perf"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                              "cl-6502-test"
                                                                              "jit") wasn't done yet!

Running test suite NIL
 Didn't run anything...huh?
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:TEST-OP
                                                     "cl-6502"), but dependency (ASDF/LISP-ACTION:LOAD-OP
                                                                                 "cl-6502") wasn't done yet!
WARNING:
   Computing just-done stamp in plan NIL for action (ASDF/LISP-ACTION:TEST-OP
                                                     "cl-6502"), but dependency (ASDF/FIND-SYSTEM:DEFINE-OP
                                                                                 "cl-6502") wasn't done yet!
#<ASDF/LISP-ACTION:TEST-OP >
#<ASDF/PLAN:SEQUENTIAL-PLAN {70098002F3}>

[kwccoin]

This run ok and may start to de-structure the whole package to see how it can be used now:

; see .travis.yml
(ql:quickload '(:cl-6502 :cl-6502-test))
(6502-tests:run! '6502-tests:6502-tests) ; can run ok as well

[kwccoin]

Trying whole morning
giving the test work and hence the bin can be run, I tried to do strangely from that path

well I cannot find the memory (example.cfg in the function test ca65 sites under amb51) and the binary even though is 16 KB ended prematurely and hence really no vector at the end but it is 100 byte short.

Trying but so far cannot .

Back to squire one, how to run a simple assembler 6502 using these codes.

May have to give up.