FreeCalypso > hg > freecalypso-sw

annotate gsm-fw/lldbg/entry.S @ 1015:9ced8e13cf91

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fc-shell tch-dl command implementation: brown paper bag
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Sun, 20 Mar 2016 23:07:46 +0000
parents f5affe83ba2d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
865
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
1 .section "ext.ram","aw",%nobits
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
2 .balign 4
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
3 .globl lldbg_stack
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
4 lldbg_stack:
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
5 .space 2048
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
6 lldbg_init_sp:
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
7
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
8 .text
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
9 .code 32
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
10 .globl lldbg_entry
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
11 lldbg_entry:
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
12 stmfd sp!, {r0-r12,lr}
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
13 mrs r0, CPSR
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
14 mov r1, sp
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
15 /* supervisor mode, disable all interrupts */
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
16 msr CPSR_c, #0xd3
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
17 ldr sp, =lldbg_init_sp
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
18 /* save entry SP and CPSR */
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
19 ldr r2, =lldbg_entry_cpsr
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
20 str r0, [r2]
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
21 ldr r2, =lldbg_entry_sp
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
22 str r1, [r2]
f5affe83ba2d lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
23 b lldbg_main