diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc505/vectors/vectors.S')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/mpc505/vectors/vectors.S | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc505/vectors/vectors.S b/c/src/lib/libcpu/powerpc/mpc505/vectors/vectors.S new file mode 100644 index 0000000000..be3bd6ffe5 --- /dev/null +++ b/c/src/lib/libcpu/powerpc/mpc505/vectors/vectors.S @@ -0,0 +1,78 @@ +/* vectors.s 1.1 - 95/12/04 + * + * This file contains the assembly code for the PowerPC 505 + * interrupt veneers for RTEMS. + * + * Author: Sergei Organov <osv@javad.ru> + * + * COPYRIGHT (c) 1998 by JPS. + * + * To anyone who acknowledges that this file is provided "AS IS" + * without any express or implied warranty: + * permission to use, copy, modify, and distribute this file + * for any purpose is hereby granted without fee, provided that + * the above copyright notice and this notice appears in all + * copies, and that the name of i-cubed limited not be used in + * advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * i-cubed limited makes no representations about the suitability + * of this software for any purpose. + * + */ + +#include "asm.h" +#include "ppc_offs.h" + + /* Vector offsets */ + .set reset, 0x0100 # PPC_IRQ_RESET + .set machine_check, 0x0200 # PPC_IRQ_MCHECK + .set dsi, 0x0300 # PPC_IRQ_PROTECT + .set isi, 0x0400 # PPC_IRQ_ISI + .set external_interrupt, 0x0500 # PPC_IRQ_EXTERNAL + .set alignment, 0x0600 # PPC_IRQ_ALIGN + .set program, 0x0700 # PPC_IRQ_PROGRAM + .set fp_unavailable, 0x0800 # PPC_IRQ_NOFP + .set decrementer, 0x0900 # PPC_IRQ_DEC + .set system_call, 0x0C00 # PPC_IRQ_SCALL + .set trace, 0x0D00 # PPC_IRQ_TRACE + .set fp_assist, 0x0E00 # PPC_IRQ_FPASSIST + .set software_emulation, 0x1000 # PPC_IRQ_SOFTEMU + .set data_bp, 0x1C00 # PPC_IRQ_DATA_BP + .set istruction_bp, 0x1D00 # PPC_IRQ_INST_BP + .set m_extern_bp, 0x1E00 # PPC_IRQ_MEXT_BP + .set nm_extern_bp, 0x1F00 # PPC_IRQ_NMEXT_BP + +#if (PPC_ABI == PPC_ABI_POWEROPEN || PPC_ABI == PPC_ABI_GCC27) +#define ABI_ADD 20*4 +#else +#define ABI_ADD 0 +#endif + +#define ISR_HANDLER(vector, irq) \ + .org vector; \ + stwu r1, -(ABI_ADD + IP_END)(r1); \ + stw r0, IP_0(r1); \ + li r0, irq; \ + b PROC (_ISR_Handler); + + /* Go to the right section */ + .section .vect,"ax",@progbits + .globl __vect +__vect: + ISR_HANDLER(reset, PPC_IRQ_RESET) + ISR_HANDLER(machine_check, PPC_IRQ_MCHECK) + ISR_HANDLER(dsi, PPC_IRQ_PROTECT) + ISR_HANDLER(isi, PPC_IRQ_ISI) + ISR_HANDLER(external_interrupt, PPC_IRQ_EXTERNAL) + ISR_HANDLER(alignment, PPC_IRQ_ALIGN) + ISR_HANDLER(program, PPC_IRQ_PROGRAM) + ISR_HANDLER(fp_unavailable, PPC_IRQ_NOFP) + ISR_HANDLER(decrementer, PPC_IRQ_DEC) + ISR_HANDLER(system_call, PPC_IRQ_SCALL) + ISR_HANDLER(trace, PPC_IRQ_TRACE) + ISR_HANDLER(fp_assist, PPC_IRQ_FPASSIST) + ISR_HANDLER(software_emulation, PPC_IRQ_SOFTEMU) + ISR_HANDLER(data_bp, PPC_IRQ_DATA_BP) + ISR_HANDLER(istruction_bp, PPC_IRQ_INST_BP) + ISR_HANDLER(m_extern_bp, PPC_IRQ_MEXT_BP) + ISR_HANDLER(nm_extern_bp, PPC_IRQ_NMEXT_BP) |