mbed library sources
Fork of mbed-src by
Diff: targets/cmsis/TARGET_NXP/TARGET_LPC23XX/TOOLCHAIN_ARM_MICRO/vector_functions.s
- Revision:
- 13:0645d8841f51
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC23XX/TOOLCHAIN_ARM_MICRO/vector_functions.s Mon Aug 05 14:12:34 2013 +0300 @@ -0,0 +1,248 @@ +;/* mbed Microcontroller Library - InterruptIn +; * Copyright (c) 2006-2009 ARM Limited. All rights reserved. +; */ + +#line 1 "vector_functions.s" +; +; +; + +#line 1 "vector_defns.h" + + + + + + + + + +#line 21 "vector_defns.h" + + + + + + + + + + + + + + + + + + +#line 47 "vector_defns.h" + + +#line 58 "vector_defns.h" + + + + + + + + + + + + + + + + + + +#line 6 "vector_functions.s" + + + AREA VECFUNCS, CODE, READONLY + ARM + PRESERVE8 + + + + + + EXPORT __mbed_fiq [WEAK] + EXPORT __mbed_undef [WEAK] + EXPORT __mbed_prefetch_abort [WEAK] + EXPORT __mbed_data_abort [WEAK] + EXPORT __mbed_irq [WEAK] + EXPORT __mbed_swi [WEAK] + EXPORT __mbed_dcc_irq [WEAK] + EXPORT __mbed_reset [WEAK] + IMPORT __mbed_init_realmonitor + +; +; +__mbed_fiq + B __mbed_fiq + +; +; +__mbed_undef + LDR PC, =0x7fffffa0 + +; +; +__mbed_prefetch_abort + LDR PC, =0x7fffffb0 + +; +; +__mbed_data_abort + LDR PC, =0x7fffffc0 + +; +; +; +; +; +; +; +; +; +__mbed_irq + ; + MSR CPSR_c, #0x1F:OR:0x80:OR:0x40 + + ; + STMDB sp!, {r0-r3,r12,lr} + + ; + MOV r0, #0xFFFFFF00 + LDR r0, [r0] + + ; + MOV lr, pc + BX r0 + + ; + MOV r0, #0xFFFFFF00 + STR r0, [r0] ; + + ; + LDMFD sp!,{r0-r3,r12,lr} + + ; + MSR CPSR_c, #0x12:OR:0x80:OR:0x40 + + ; + SUBS pc, lr, #4 + +; +; +; +; +__mbed_swi + ; + ; + STMFD sp!, {a4, r4, ip, lr} + + ; + LDR r4, =0x40000040 + + ; + ; + LDR a4, =0x00940000 + LDR PC, =0x7ffff820 + +; +; +; +; +__mbed_dcc_irq + + ; + + ; + LDMFD sp!,{r0-r3,r12,lr} + + ; + MSR CPSR_c, #0x12:OR:0x80:OR:0x40 + + ; + + ; + SUB lr, lr, #4 ; + STMFD sp!, {ip,lr} ; + + ; + LDR LR, =0xfffff000 + STR LR, [LR, #0xf00] + + ; + ; + ; + ; + LDR PC, =0x7fffffe0 + +; +; __mbed_reset is called after reset +; we setup the stacks and realmonitor, then call Reset_Handler like on M3 + +; Reset Handler + +Reset_Handler PROC + EXPORT Reset_Handler [WEAK] + IMPORT SystemInit + IMPORT __main + LDR R0, =SystemInit + MOV LR, PC + BX R0 + LDR R0, =__main + BX R0 + ENDP + +__mbed_reset + + ; + + LDR R0, =(0x40000000 + 0x8000) + + ; + MSR CPSR_c, #0x1B:OR:0x80:OR:0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + ; + MSR CPSR_c, #0x17:OR:0x80:OR:0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + ; + MSR CPSR_c, #0x11:OR:0x80:OR:0x40 + MOV SP, R0 + SUB R0, R0, #0x00000000 + + ; + MSR CPSR_c, #0x12:OR:0x80:OR:0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + ; + MSR CPSR_c, #0x13:OR:0x80:OR:0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + ; + MSR CPSR_c, #0x10 + MOV SP, R0 + + ; + LDR R0, =__mbed_init_realmonitor + MOV LR, PC + BX R0 + + ; + LDR R0, =Reset_Handler + BX R0 + + + END