63 lines
1.5 KiB
ArmAsm
63 lines
1.5 KiB
ArmAsm
.syntax unified
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.cpu cortex-m4
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.thumb
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.text
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.align 2
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@ uint gc_helper_get_regs_and_sp(r0=uint regs[10])
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.global gc_helper_get_regs_and_sp
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.thumb
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.thumb_func
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.type gc_helper_get_regs_and_sp, %function
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gc_helper_get_regs_and_sp:
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@ store registers into given array
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str r4, [r0], #4
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str r5, [r0], #4
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str r6, [r0], #4
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str r7, [r0], #4
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str r8, [r0], #4
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str r9, [r0], #4
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str r10, [r0], #4
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str r11, [r0], #4
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str r12, [r0], #4
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str r13, [r0], #4
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@ return the sp
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mov r0, sp
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bx lr
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@ this next function is now obsolete
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.size gc_helper_get_regs_and_clean_stack, .-gc_helper_get_regs_and_clean_stack
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@ void gc_helper_get_regs_and_clean_stack(r0=uint regs[10], r1=heap_end)
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.global gc_helper_get_regs_and_clean_stack
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.thumb
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.thumb_func
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.type gc_helper_get_regs_and_clean_stack, %function
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gc_helper_get_regs_and_clean_stack:
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@ store registers into given array
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str r4, [r0], #4
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str r5, [r0], #4
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str r6, [r0], #4
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str r7, [r0], #4
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str r8, [r0], #4
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str r9, [r0], #4
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str r10, [r0], #4
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str r11, [r0], #4
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str r12, [r0], #4
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str r13, [r0], #4
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@ clean the stack from given pointer up to current sp
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movs r0, #0
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mov r2, sp
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b.n .entry
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.loop:
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str r0, [r1], #4
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.entry:
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cmp r1, r2
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bcc.n .loop
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bx lr
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.size gc_helper_get_regs_and_clean_stack, .-gc_helper_get_regs_and_clean_stack
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