more MEGA65 DOS Wedge fixes

src/basic/board_m65/mega65_imports.s

@@ -21,8 +21,8 @@
 .label JSETFLS                         = KERNAL_0.JSETFLS
 .label JSETNAM                         = KERNAL_0.JSETNAM
 .label JGETIN                          = KERNAL_0.JGETIN
-.label JCHKIN                          = KERNAL_0.JCHKIN
-.label JCHRIN                          = KERNAL_0.JCHRIN
+.label JCHKIN                          = BASIC_0.proxy_B1_JCHKIN
+.label JCHRIN                          = BASIC_0.proxy_B1_JCHRIN
 .label JREADST                         = KERNAL_0.JREADST
 .label JSCREEN                         = KERNAL_0.JSCREEN
 .label SELDEV                          = KERNAL_0.SELDEV

src/basic/board_m65/mega65_proxies.s

@@ -54,6 +54,18 @@ proxy_B1_JOPEN:
 
 #endif
 
+proxy_B1_JCHKIN:
+
+	jsr map_NORMAL
+	jsr JCHKIN
+	jmp_8 !-
+
+proxy_B1_JCHRIN:
+
+	jsr map_NORMAL
+	jsr JCHRIN
+	jmp_8 !-
+
 proxy_B1_JCHROUT:
 
 	jsr map_NORMAL
@@ -102,13 +114,13 @@ proxy_B1_fetch_character:
 
 	jsr map_NORMAL
 	jsr fetch_character
-	jmp_8 !-
+	jmp_8 !+
 
 proxy_B1_fetch_character_skip_spaces:
 
 	jsr map_NORMAL
 	jsr fetch_character_skip_spaces
-	jmp_8 !-
+	jmp_8 !+
 
 proxy_B1_fetch_uint8: