From 548905a86473101325540446f35ffda8acd0c3bb Mon Sep 17 00:00:00 2001 From: Nathan Lee Date: Fri, 25 Sep 2026 23:24:31 -0500 Subject: scaffold kernel from parts of wkern x86 --- website-kernel/arch/start.S | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 website-kernel/arch/start.S (limited to 'website-kernel/arch/start.S') diff --git a/website-kernel/arch/start.S b/website-kernel/arch/start.S new file mode 100644 index 0000000..8248ab9 --- /dev/null +++ b/website-kernel/arch/start.S @@ -0,0 +1,23 @@ +.section .text._start +.global _start +.type _start, @function + +.extern user_regs + +_start: + csrw sstatus, zero + csrw sie, zero + + la sp, __stack_top + + la t0, __bss_start + la t1, __bss_end + beq t0, t1, 2f +1: + sw zero, 0(t0) + addi t0, t0, 4 + bltu t0, t1, 1b +2: + call kernel_main + wfi + -- cgit v1.2.3