From 93bf62580a68533dc8252b9a2a055c02f34ecb67 Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Thu, 24 Mar 2022 09:38:08 -0700
Subject: Modularized

---
 src/sys/schedule.S | 53 -----------------------------------------------------
 1 file changed, 53 deletions(-)
 delete mode 100644 src/sys/schedule.S

(limited to 'src/sys/schedule.S')

diff --git a/src/sys/schedule.S b/src/sys/schedule.S
deleted file mode 100644
index a47252c..0000000
--- a/src/sys/schedule.S
+++ /dev/null
@@ -1,53 +0,0 @@
-.section ".text"
-.globl schedule
-
-.include "macros.inc"
-
-// Assumption: Enter in SVC mode
-schedule:
-	preserve_ctx
-	ldr r1, =irqlr
-	ldr r0, [r1]
-	cmp r0, #0
-	beq 1f
-	// Replace LR with IRQ's LR
-	ldr r3, =scheduler
-	ldr r2, [r3, #0] // struct Thread* rthread
-	str r0, [r2, #0] // svc_lr -> void* pc
-	// Clear IRQ's LR
-	mov r0, #0
-	str r0, [r1]
-1:
-	bl next_thread // Thread* next -> r0
-	ldr r3, =scheduler
-	str r0, [r3, #0] // next -> rthread
-	restore_ctx
-	subs pc, lr, #0
-
-.globl cleanup
-cleanup:
-	bl c_cleanup
-	// usrloop -> rthread
-	ldr r3, =scheduler
-	ldr r2, =usrloopthread
-	str r2, [r3, #0]
-	ldr sp, [r2, #4]
-	ldmfd sp!,{lr}
-	ldmfd sp!,{r0-r12}
-	ldr lr, =kernel_usr_task_loop
-	// svc sched
-	svc #2
-.globl kernel_usr_task_loop
-kernel_usr_task_loop:
-	wfe
-	b kernel_usr_task_loop
-
-.globl add_thread
-add_thread:
-	mrs r3, cpsr
-	and r3, #0x1F
-	cmp r3, #0x10
-	beq 1f
-	b svc_add_thread
-1:	svc #3
-	bx lr
-- 
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