Minor change to SP handling on AUX->MAIN

2021-08-15 15:27:35 -04:00 · 2021-08-15 15:27:35 -04:00 · 4d292c4702
parent df3f82ea32
commit 4d292c4702
2 changed files with 2 additions and 2 deletions
--- a/applecorn.po
+++ b/applecorn.po
--- a/applecorn.s
+++ b/applecorn.s
@ -99,8 +99,7 @@ XF2MAIN     MAC
            STX   STRTH
            TSX
            STX   $0101       ; Save alt SP
-            LDX   $0100       ; Load main SP
-            TXS
+            LDX   $0100       ; Load main SP into X
            CLC               ; Use main mem
            CLV               ; Use main ZP and LC
            JMP   XFER
@ -118,6 +117,7 @@ ENTAUX      MAC

 * Macro called on re-entry to main memory
 ENTMAIN     MAC
+            TXS               ; Main SP already in X
            LDX   $C081       ; Bank in ROM
            LDX   $C081
            EOM