From cbedaa7f06f9dc2c48111faf96a567f178d16be0 Mon Sep 17 00:00:00 2001
From: Daniel Svitan <daniel.svitan.team7274dev@gmail.com>
Date: Wed, 7 May 2025 22:34:13 +0200
Subject: [PATCH] :construction: Starts working on switch

---
 main.asm | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 64 insertions(+), 7 deletions(-)

diff --git a/main.asm b/main.asm
index 1c1d238..1890a36 100644
--- a/main.asm
+++ b/main.asm
@@ -6,22 +6,28 @@ STDIN equ 0x0
 STDOUT equ 0x1
 STDERR equ 0x2
 
+; R15 is reserved for action
+ACTION_LOOP equ 0x0
+ACTION_CHAR equ 0x1
+ACTION_BACK_TO_OPENING equ 0x2
+
 section .data
 	space db " "
 	endl db 10
 	backslash db "\\"
-	quote db "\""
+	quote db 0x22  ; "
 	opening_curly db "{"
 	opening_bracket db "["
 	closing_curly db "}"
 	closing_bracket db "]"
 	comma db ","
 	colon db ":"
+	indent dq 2  ; dq (64 bits) because we are working with 64 bit registers
 
 section .bss
 	char resb 1
 	exitCode resb 1
-	scope resb 1
+	scope resq 1
 	in_string resb 1
 	escape_next resb 1
 
@@ -39,27 +45,78 @@ _start:
 	mov rdx, 1
 	int 0x80
 
+	; is at EOF?
 	cmp rax, 0
 	jle end
 
+	mov al, [char]
+	cmp al, [quote]
+	je case_quote
+	cmp al, [backslash]
+	je case_backslash
+	cmp al, [opening_curly]
+	je case_opening
+	cmp al, [opening_bracket]
+	je case_opening
+
+	mov r15, ACTION_LOOP
+	jmp print_char
+
+	case_quote:
+	mov al, [escape_next]
+	cmp al, 1
+	je print_char
+
+	not byte[in_string]
+	jmp print_char
+
+	case_backslash:
+	mov byte[escape_next], 1
+	jmp print_char
+
+	case_opening:
+	mov r5, ACTION_BACK_TO_OPENING
+	jmp print_char
+
+	inc byte[scope]
+
+	;je ln_start
+	;jmp loop
+
+	print_char:
 	mov rax, SYS_WRITE
 	mov rbx, STDOUT
 	mov rcx, char
 	mov rdx, 1
 	int 0x80
 
-	cmp byte[char], 0x61
-	je indent
+	cmp r15, ACTION_LOOP
+	je loop
 
-	jmp loop
+	ln_start:
+	xor r8, r8
+	xor r9, r9
+	xor rax, rax
 
-	indent:
+	mov rax, [indent]
+	mov rbx, [scope]
+	imul rax, rbx
+	mov r9, rax
+
+	cmp qword[scope], 0
+	je loop
+
+	ln_loop:
 	mov rax, SYS_WRITE
 	mov rbx, STDOUT
 	mov rcx, space
 	mov rdx, 1
 	int 0x80
-	jmp loop
+
+	inc r8
+	cmp r8, r9
+	jne ln_loop
+	je loop
 
 	end:
 	mov rax, SYS_EXIT