diff options
Diffstat (limited to 'coroutine')
| -rw-r--r-- | coroutine/arm32/Context.S | 14 | ||||
| -rw-r--r-- | coroutine/arm32/Context.h | 2 |
2 files changed, 12 insertions, 4 deletions
diff --git a/coroutine/arm32/Context.S b/coroutine/arm32/Context.S index c2b93d0a34..4308e1d1d2 100644 --- a/coroutine/arm32/Context.S +++ b/coroutine/arm32/Context.S @@ -9,6 +9,14 @@ .globl coroutine_transfer coroutine_transfer: - stmia r1!, {r4-r11,sp,lr} - ldmia r0!, {r4-r11,sp,pc} - bx lr + # Save caller state (8 registers + return address) + push {r4-r11,lr} + + # Save caller stack pointer + str sp, [r0] + + # Restore callee stack pointer + ldr sp, [r1] + + # Restore callee state (8 registers program counter) + pop {r4-r11,pc} diff --git a/coroutine/arm32/Context.h b/coroutine/arm32/Context.h index d6d3c7f313..27f97908bc 100644 --- a/coroutine/arm32/Context.h +++ b/coroutine/arm32/Context.h @@ -12,7 +12,7 @@ #define COROUTINE __attribute__((noreturn)) void -enum {COROUTINE_REGISTERS = 9}; +enum {COROUTINE_REGISTERS = 8}; struct coroutine_context { |