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+.syntax unified
+.cpu cortex-m0plus
+.thumb
+
+// .type print_error, %function
+// .global print_error
+
+// 00 success
+// 01 expected an opcode (or unexpected character)
+// 02 expected label or opcode
+// 03 expected colon at end of label
+// 04 opcode not found
+
+// 05 expected digit
+
+// 06 expected register
+// 07 invalid general-purpose register number
+// 08 invalid register for this register position
+// 09 invalid register combo for this instruction
+
+// 0A immediate value too large
+
+// 0B extra input at end of statement
+
+ .align 4
+no_colon: .asciz "Error: Expected colon at end of label"
+ .align 4
+no_opcode: .asciz "Error: Expected an opcode"
+ .align 4
+not_found: .asciz "Error: Opcode not found"