Create prompt asm

04_prompt/prompt.s

@@ -0,0 +1,65 @@
+	# PROMPT
+	.equ STDOUT, 1
+	.equ WRITE , 64
+	
+	# READ
+	.equ STDIN, 0
+	.equ BUF_S, 255
+	.equ READ , 63
+	.equ EXIT , 93
+
+	.section .rodata
+	prompt_msg:      .ascii "Welcome! Type your name\n"
+	prompt_msg_size: .byte .-prompt_msg
+	greetings_msg:   .asciz "Hi "
+	greetings_size:  .byte .-greetings_msg
+	buffer_size: .byte .-buffer
+	.section .bss
+	buffer: .space 256
+	
+	.section .text
+	.global _start
+
+	prompt:
+		addi a0, zero, STDOUT     # Get stdout code
+		la   a1, prompt_msg       # Load prompt_msg
+		lbu  a2, prompt_msg_size  # Load prompt_msg size
+		addi a7, zero, WRITE      # Get write syscall
+		ecall                     # Execute syscall
+		ret
+	
+	input:
+		addi a0, zero, STDIN  # Load stdin code
+		la   a1, buffer       # Load buffer
+		addi a2, zero, BUF_S  # Load buffer size
+		addi a7, zero, READ   # Get read syscall
+		ecall                 # Execute syscall
+		ret
+	
+	print:
+		# Print greetings message
+		addi a0, zero, STDOUT   # Get stdout code
+		la   a1, greetings_msg  # Load greetings message
+		lbu  a2, greetings_size	# Load greetings size
+		addi a7, zero, WRITE    # Get write syscall
+		ecall                   # Execute syscall
+			
+		# Print name
+		addi a0, zero, STDOUT # Get stdout code
+                la   a1, buffer       # Load buffer with name
+                lbu  a2, buffer_size  # Load buffer size
+                addi a7, zero, WRITE  # Get write syscall
+                ecall                 # Execute syscall
+                ret
+
+	exit:
+		add  a0, zero, zero # Execution returned status = 0
+		addi a7, zero, EXIT # Exit syscall
+		ecall               # Execute syscall
+		ret
+
+	_start:
+		call prompt
+		call input
+		call print
+		call exit