Added SWICH/CASE/DEFAULT/ENDSWITCH to docs

commands.md

@@ -107,6 +107,17 @@ process("hello",42,myvar)
 
 ---
 
+## CASE
+
+Defines a case branch within SWITCH statement.
+
+**Syntax:**
+```
+See SWITCH
+```
+
+---
+
 ## DEC
 
 Decrements a variable or memory location by 1.
@@ -129,6 +140,17 @@ DECREMENT screenColor
 
 ---
 
+## DEFAULT
+
+Defines the default branch in SWITCH statement.
+
+**Syntax:**
+```
+See SWITCH
+```
+
+---
+
 ## ELSE
 
 Alternative branch in IF statement.
@@ -151,6 +173,17 @@ See IF
 
 ---
 
+## ENDSWITCH
+
+Terminates SWITCH block.
+
+**Syntax:**
+```
+See SWITCH
+```
+
+---
+
 ## FEND
 
 Ends a function definition.
@@ -561,6 +594,98 @@ remaining = total - used
 
 ---
 
+## SWITCH
+
+Multi-way branching based on variable value comparison.
+
+Features implicit breaks (automatic jump to ENDSWITCH after each case), supports nesting, and works with BYTE and WORD types.
+
+**Syntax:**
+```
+SWITCH <variable>
+  CASE <value>
+    [statements]
+  [CASE <value>
+    [statements]]
+  [DEFAULT
+    [statements]]
+ENDSWITCH
+```
+
+**Notes:**
+- Each CASE automatically breaks (jumps to ENDSWITCH) after execution
+- CASE values can be literals, constants, or variables
+- DEFAULT branch is optional and executes when no CASE matches
+- DEFAULT must come after all CASE statements
+- Only one DEFAULT per SWITCH
+- BYTE variables can only be compared with values 0-255
+- Can use `#PRAGMA _P_USE_LONG_JUMP 1` for large switch statements
+- Nested SWITCH statements are supported
+
+**Examples:**
+```
+// Basic switch with default
+SWITCH status
+  CASE 1
+    result = 10
+  CASE 2
+    result = 20
+  DEFAULT
+    result = 0
+ENDSWITCH
+
+// Switch with constants
+BYTE CONST MAX = 100
+SWITCH value
+  CASE MAX
+    overflow = 1
+  CASE 50
+    halfway = 1
+ENDSWITCH
+
+// WORD switch
+WORD big_val
+SWITCH big_val
+  CASE 1000
+    mode = 1
+  CASE 5000
+    mode = 2
+  DEFAULT
+    mode = 0
+ENDSWITCH
+
+// Nested switch
+SWITCH outer
+  CASE 1
+    result = 1
+  CASE 2
+    SWITCH inner
+      CASE 10
+        result = 20
+      CASE 20
+        result = 40
+    ENDSWITCH
+  DEFAULT
+    result = 0
+ENDSWITCH
+
+// Using variables in CASE
+BYTE threshold1
+BYTE threshold2
+LET threshold1 = 50
+LET threshold2 = 100
+SWITCH temperature
+  CASE threshold1
+    fan_speed = 1
+  CASE threshold2
+    fan_speed = 2
+  DEFAULT
+    fan_speed = 0
+ENDSWITCH
+```
+
+---
+
 ## WEND
 
 Terminates WHILE loop.