From 1a3e4faccbff8f7a95a802331426c581fa84ee60 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Fri, 21 Mar 1997 19:20:25 +0000 Subject: added decrementer entry. --- c/src/lib/libcpu/powerpc/ppc403/vectors/vectors.s | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'c/src/lib/libcpu/powerpc/ppc403/vectors/vectors.s') diff --git a/c/src/lib/libcpu/powerpc/ppc403/vectors/vectors.s b/c/src/lib/libcpu/powerpc/ppc403/vectors/vectors.s index b764207648..45865c37ad 100644 --- a/c/src/lib/libcpu/powerpc/ppc403/vectors/vectors.s +++ b/c/src/lib/libcpu/powerpc/ppc403/vectors/vectors.s @@ -96,6 +96,7 @@ .set ext_vector,0x0500 .set align_vector,0x0600 .set prog_vector,0x0700 + .set dec_vector,0x0900 .set sys_vector,0x0C00 .set pit_vector,0x1000 .set fit_vector,0x1010 @@ -197,6 +198,22 @@ SYM (__vectors): li r0, PPC_IRQ_PROGRAM b PROC (_ISR_Handler) +/* Decrementer exception */ + .org dec_vector - file_base +#if (PPC_ABI == PPC_ABI_POWEROPEN || PPC_ABI == PPC_ABI_GCC27) +#if (PPC_HAS_FPU) + stwu r1, -(20*4 + 18*8 + IP_END)(r1) +#else + stwu r1, -(20*4 + IP_END)(r1) +#endif +#else + stwu r1, -(IP_END)(r1) +#endif + stw r0, IP_0(r1) + + li r0, PPC_IRQ_PROGRAM + b PROC (_ISR_Handler) + /* System call */ .org sys_vector - file_base #if (PPC_ABI == PPC_ABI_POWEROPEN || PPC_ABI == PPC_ABI_GCC27) -- cgit v1.2.3