JEQ - STCH - LDCH are the same opcode

[YousefSaber]

I want to design a SIC Assembler that matches the specs , syntax and description of that in reference (Introduction to Systems Programming
Book by Leland L. Beck) page 47 ,49
( here's the link
https://drive.google.com/file/d/1lU-PKTmICybL2KxK1ExUHHMdwOTMKJtF/view?usp=sharing)

when I forked your code I made some changes so the syntax and opcode can exactly match the reference

the changes in Assembly.c

    char op_mnemonic[26][10]={"LDA","STA","JSUB","MUL","STL","DIV","ADD","STCH","TD","JEQ","LDCH","WD","RSUB","TIXR","TIX","JLT","COMP","CLEAR","LDB","J" ,"RD","COMPR","STX","LDT","LDL","LDX"};

    char op_opcode[26][10]={  "00", "0C", "48",  "20", "14", "24", "18", "54",  "E0", "30","50",  "DC", "4C", "B8",  "2C", "38", "28",  "B4",   "68", "3C","D8","D8",   "10", "74", "08", "04"};

but for somehow the output in the intermediate file

38	2067	--	JEQ	WLOOP		302064
39	206A	--	LDCH	BUFFER,X	309039

instead of

38	2067	--	JEQ	WLOOP		302064
39	206A	--	LDCH	BUFFER,X	509039

what changes I should do to fix this?

the full edited files , input and outputs are in this repository

https://github.com/YousefSaber/SIC-Assembler