Merge pull request #16 from nihirash/minor_updates

Compatibility updates and uart speed

Author: nihirash

.version

@@ -1 +1 @@
-2024.07.03
+2024.07.06

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 2024.07.26
+
+ * Preserving DE in BDOS calls - very small count of applications waits for this
+
+ * UART can be configured for 300 Bauds 
+
 ## 2024.07.03
 
  * ez80asm updated to 1.8 version

src/zinc-setup/uart-setup.asm

@@ -18,7 +18,7 @@ speed_conf:
     cp '1'
     jr c, speed_conf
 
-    cp '9'
+    cp '9' + 1
     jr nc, speed_conf
 
     sub '0'
@@ -58,9 +58,14 @@ speed_conf:
     ld de, 2400
     jp z, @speed_ok
 
+    cp 8
     ld hl, uart_speed8 + 4
     ld de, 1200
+    jp z, @speed_ok
 
+    ld hl, uart_speed9 + 4
+    ld de, 300
+    
 @speed_ok:
     ld (serial_speed), de
     ld bc, 0
@@ -183,6 +188,9 @@ uart_speed7:
     db " 7) 2400",   13, 10
 uart_speed8:
     db " 8) 1200",   13, 10
+uart_speed9:
+    db " 9) 300", 13, 10
+    
     db 13, 10
     db "Selected speed: "
     db 0

src/zinc/edos/core.asm

@@ -21,6 +21,7 @@ edos:
     ei
     push ix
     push iy
+    push de
 
     ld hl, bdos_return
     push hl
@@ -45,6 +46,7 @@ edos:
 
 bdos_return:
     di
+    pop de
     pop iy 
     pop ix
     ld sp, (user_stk)