From 59769a222cbd4a753c09196bb415bda414f34050 Mon Sep 17 00:00:00 2001 From: Matthew Berry <me@mattrb.com> Date: Tue, 3 Nov 2020 00:04:15 -0800 Subject: [PATCH] thumb software interrupt fix link register offset --- src/crab/thumb/software_interrupt.cr | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/crab/thumb/software_interrupt.cr b/src/crab/thumb/software_interrupt.cr index 4699de7..bc21d1b 100644 --- a/src/crab/thumb/software_interrupt.cr +++ b/src/crab/thumb/software_interrupt.cr @@ -1,6 +1,6 @@ module THUMB def thumb_software_interrupt(instr : Word) : Nil - lr = @r[15] - 4 + lr = @r[15] - 2 switch_mode CPU::Mode::SVC set_reg(14, lr) @cpsr.irq_disable = true