Anayzling SixtyPical Programs

-> Tests for functionality "Analyze SixtyPical program"

-> Functionality "Analyze SixtyPical program" is implemented by
-> shell command "bin/sixtypical analyze %(test-file)"

A routine cannot expect registers which a called routine does not preserve, to be preserved.

| assign byte border_colour 4000
| reserve byte score
| routine update_score
| {
|   lda #8
|   sta score
| }
| routine main {
|   lda #4
|   jsr update_score
|   sta border_colour
| }
? routine does not preserve register

But if it does it can.

| assign byte border_colour 4000
| reserve byte score
| routine update_score
| {
|   ldx score
|   inx
|   stx score
| }
| routine main {
|   lda #4
|   jsr update_score
|   sta border_colour
| }
= True

906 B Raw Blame History

Anayzling SixtyPical Programs

906 B

Raw Blame History