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annotate gsm-fw/lldbg/entry.S @ 1000:36e3f6bf0156

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top README: just describe what each subtree is for, and refer to other docs
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Sun, 06 Mar 2016 21:38:21 +0000
parents f5affe83ba2d
children
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865
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
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1 .section "ext.ram","aw",%nobits
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2 .balign 4
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3 .globl lldbg_stack
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4 lldbg_stack:
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5 .space 2048
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6 lldbg_init_sp:
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7
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8 .text
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9 .code 32
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10 .globl lldbg_entry
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11 lldbg_entry:
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12 stmfd sp!, {r0-r12,lr}
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13 mrs r0, CPSR
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14 mov r1, sp
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15 /* supervisor mode, disable all interrupts */
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16 msr CPSR_c, #0xd3
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17 ldr sp, =lldbg_init_sp
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18 /* save entry SP and CPSR */
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19 ldr r2, =lldbg_entry_cpsr
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20 str r0, [r2]
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21 ldr r2, =lldbg_entry_sp
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22 str r1, [r2]
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23 b lldbg_main