o Moving around a lot of files.

1 files changed, 0 insertions, 56 deletions

diff --git a/os1_cm3.s b/os1_cm3.s
deleted file mode 100644
index a9083dc..0000000
--- a/os1_cm3.s
+++ /dev/null
@@ -1,56 +0,0 @@
-.syntax unified
-.cpu cortex-m3
-.thumb
-
-.section .text
-
-/*
-
-User threads use the process stack (PSP register), kernel and exception code use the main stack (MSP register).
-
-*/
-
-.thumb_func
-.global do_first_context_switch
-// void do_first_context_switch(uint8_t *user_stack, void (task)(const void *arg));
-do_first_context_switch:
-    /* Set PSP to the user task's stack */
-    msr     psp, r0
-
-    // Set CONTROL.SPSEL=1 so that we run with two stacks
-    mov     r0, #2
-    msr     control, r0
-    isb
-
-    // Restore the data from hardware_frame_t.
-    pop     {r0 - r3, r12, lr}
-    // Pop PC and PSR. PSR is ignored, but we branch to the new PC
-    pop     {r4, r5}
-    bx      r4
-
-/*
-When this function is executed {r0-r3,r12,lr,pc} has been pushed to the stack pointed to by PSP. We push the rest of the
-registers to the PSP. The current stack pointer is the MSP.
- */
-.thumb_func
-.global PendSV_Handler
-PendSV_Handler:
-    // Save the rest of the context to the current process' stack
-    mrs     r0, psp
-    stmdb   r0!, {r4 - r11}
-
-    // Call select_next_task_sp. after return, r0 points to a task_t
-    bl      _Z16select_next_taskPh   // task_t *select_next_task(uint8_t *current_stack)
-
-    // load task_t.stack and task_t.lr into r1 and lr
-    ldm     r0, {r1, lr}
-
-    ldmia   r1!, {r4 - r11}
-    msr     psp, r1
-
-    // Return, let the CPU restore the hardware part of the context
-    bx      lr
-.pool
-.size PendSV_Handler,.-PendSV_Handler
-
-.end