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| author | Marcin Bukat <marcin.bukat@gmail.com> | 2023-09-27 22:29:10 +0200 |
|---|---|---|
| committer | Marcin Bukat <marcin.bukat@gmail.com> | 2023-09-27 22:49:33 +0200 |
| commit | 609db995d5ac0fb6c538c5f4e9e4e449235f7c76 (patch) | |
| tree | 030675f75d08c8a808c8f389477406b7b54ddea4 | |
| parent | bf8191421701b62da4be9bbd3f2ce8ac4309e101 (diff) | |
| download | rockbox-609db995d5.tar.gz rockbox-609db995d5.zip | |
hwstub: Remove code duplication in ATJ213x exception handling
| -rw-r--r-- | utils/hwstub/stub/atj213x/crt0.S | 57 |
1 files changed, 9 insertions, 48 deletions
diff --git a/utils/hwstub/stub/atj213x/crt0.S b/utils/hwstub/stub/atj213x/crt0.S index 5a3c81dc78..7d5bcde9b2 100644 --- a/utils/hwstub/stub/atj213x/crt0.S +++ b/utils/hwstub/stub/atj213x/crt0.S @@ -140,66 +140,27 @@ stack_munge_loop: .section .exception.tlb_refill,"ax",%progbits tlb_refill_handler: - la k1, exception_jmp_ctx_ptr - lw s0, 0(k1) - lw s1, 4(k1) - lw s2, 8(k1) - lw s3, 12(k1) - lw s4, 16(k1) - lw s5, 20(k1) - lw s6, 24(k1) - lw s7, 28(k1) - lw sp, 32(k1) - lw s8, 36(k1) - lw k1, 40(k1) - mtc0 k1, C0_EPC - ehb - li v0, EXCEPTION_ADDR - eret + li a0, EXCEPTION_ADDR + la k0, restore_exception_jmp + jr k0 nop .global cache_error_handler .section .exception.cache_error,"ax",%progbits cache_error_handler: - la k1, exception_jmp_ctx_ptr - lw s0, 0(k1) - lw s1, 4(k1) - lw s2, 8(k1) - lw s3, 12(k1) - lw s4, 16(k1) - lw s5, 20(k1) - lw s6, 24(k1) - lw s7, 28(k1) - lw sp, 32(k1) - lw s8, 36(k1) - lw k1, 40(k1) - mtc0 k1, C0_EPC - ehb - li v0, EXCEPTION_ADDR - eret + li a0, EXCEPTION_ADDR + la k0, restore_exception_jmp + jr k0 nop .global general_exception_handler .section .exception.general_exception,"ax",%progbits general_exception_handler: - la k1, exception_jmp_ctx_ptr - lw s0, 0(k1) - lw s1, 4(k1) - lw s2, 8(k1) - lw s3, 12(k1) - lw s4, 16(k1) - lw s5, 20(k1) - lw s6, 24(k1) - lw s7, 28(k1) - lw sp, 32(k1) - lw s8, 36(k1) - lw k1, 40(k1) - mtc0 k1, C0_EPC - ehb - li v0, EXCEPTION_UNSP - eret + li a0, EXCEPTION_UNSP + la k0, restore_exception_jmp + jr k0 nop /* s0-s7 not saved as this are callee saved registers |