.section .text._start, "ax"
.global _start
_start:
    # 🕵️ DIAGNOSTIC: BREATHE
    li t0, 0x10000000
    li t1, 0x23 # '#'
    sb t1, 0(t0)

# Clear BSS (64-bit aligned zeroing)
    la t0, __bss_start
    la t1, __bss_end
1:  bge t0, t1, 2f
    sd zero, 0(t0)
    addi t0, t0, 8
    j 1b
2:
    fence rw, rw

    # 🕵️ DIAGNOSTIC: READY TO CALL MAIN
    li t0, 0x10000000
    li t1, 0x21 # '!'
    sb t1, 0(t0)

    # Arguments (argc, argv) are already in a0, a1 from Kernel
    # sp is already pointing to argc from Kernel
    
    call main

    # Call exit(result)
    call exit

1:  j 1b