In system(), avoid depending on the data bank value at entry.

The previous code relied on the data bank value at entry being the bank that contained the library code. This might not be the case when called from code using the large memory model, which could lead to the wrong value being returned.
2021-09-02 17:38:38 -05:00 · 2021-09-02 17:38:38 -05:00 · 9937ef7003
parent 869f8726a6
commit 9937ef7003
1 changed files with 2 additions and 2 deletions
--- a/stdlib.asm
+++ b/stdlib.asm
@ -1593,14 +1593,14 @@ system   start
         sta   exComm+2
 lb1      phy                            execute the command
         phx
-         plb
         Execute ex
         ldy   empty
         bne   ret                      if doing system(NULL)
         tya
         bcs   ret                        error => no command processor
         inc   a                           (& vice versa)                
-ret      rtl
+ret      plb
+         rtl

 ex       dc    i'$8000'
 exComm   ds    4