| 1 | /* vectors.s 1.1 - 95/12/04 |
|---|
| 2 | * |
|---|
| 3 | * This file contains the assembly code for the PowerPC 505 |
|---|
| 4 | * interrupt veneers for RTEMS. |
|---|
| 5 | * |
|---|
| 6 | * Author: Sergei Organov <osv@javad.ru> |
|---|
| 7 | * |
|---|
| 8 | * COPYRIGHT (c) 1998 by JPS. |
|---|
| 9 | * |
|---|
| 10 | * To anyone who acknowledges that this file is provided "AS IS" |
|---|
| 11 | * without any express or implied warranty: |
|---|
| 12 | * permission to use, copy, modify, and distribute this file |
|---|
| 13 | * for any purpose is hereby granted without fee, provided that |
|---|
| 14 | * the above copyright notice and this notice appears in all |
|---|
| 15 | * copies, and that the name of i-cubed limited not be used in |
|---|
| 16 | * advertising or publicity pertaining to distribution of the |
|---|
| 17 | * software without specific, written prior permission. |
|---|
| 18 | * i-cubed limited makes no representations about the suitability |
|---|
| 19 | * of this software for any purpose. |
|---|
| 20 | * |
|---|
| 21 | */ |
|---|
| 22 | |
|---|
| 23 | #include <rtems/asm.h> |
|---|
| 24 | #include <rtems/score/powerpc.h> |
|---|
| 25 | #include <rtems/score/ppc_offs.h> |
|---|
| 26 | |
|---|
| 27 | /* Vector offsets */ |
|---|
| 28 | .set reset, 0x0100 # PPC_IRQ_SYSTEM_RESET |
|---|
| 29 | .set machine_check, 0x0200 # PPC_IRQ_MCHECK |
|---|
| 30 | .set dsi, 0x0300 # PPC_IRQ_PROTECT |
|---|
| 31 | .set isi, 0x0400 # PPC_IRQ_ISI |
|---|
| 32 | .set external_interrupt, 0x0500 # PPC_IRQ_EXTERNAL |
|---|
| 33 | .set alignment, 0x0600 # PPC_IRQ_ALIGNMENT |
|---|
| 34 | .set program, 0x0700 # PPC_IRQ_PROGRAM |
|---|
| 35 | .set fp_unavailable, 0x0800 # PPC_IRQ_NOFP |
|---|
| 36 | .set decrementer, 0x0900 # PPC_IRQ_DECREMENTER |
|---|
| 37 | .set system_call, 0x0C00 # PPC_IRQ_SCALL |
|---|
| 38 | .set trace, 0x0D00 # PPC_IRQ_TRACE |
|---|
| 39 | .set fp_assist, 0x0E00 # PPC_IRQ_FP_ASST |
|---|
| 40 | .set software_emulation, 0x1000 # PPC_IRQ_SOFTEMU |
|---|
| 41 | .set data_bp, 0x1C00 # PPC_IRQ_DATA_BP |
|---|
| 42 | .set istruction_bp, 0x1D00 # PPC_IRQ_INST_BP |
|---|
| 43 | .set m_extern_bp, 0x1E00 # PPC_IRQ_MEXT_BP |
|---|
| 44 | .set nm_extern_bp, 0x1F00 # PPC_IRQ_NMEXT_BP |
|---|
| 45 | |
|---|
| 46 | #if (PPC_ABI == PPC_ABI_POWEROPEN || PPC_ABI == PPC_ABI_GCC27) |
|---|
| 47 | #define ABI_ADD 20*4 |
|---|
| 48 | #else |
|---|
| 49 | #define ABI_ADD 0 |
|---|
| 50 | #endif |
|---|
| 51 | .extern led_green |
|---|
| 52 | #define ISR_HANDLER(vector, irq) \ |
|---|
| 53 | .org vector; \ |
|---|
| 54 | stwu r1, -(ABI_ADD + IP_END)(r1); \ |
|---|
| 55 | stw r0, IP_0(r1); \ |
|---|
| 56 | li r0, irq; \ |
|---|
| 57 | b PROC (_ISR_Handler); |
|---|
| 58 | |
|---|
| 59 | /* Go to the right section */ |
|---|
| 60 | .section .vect,"ax",@progbits |
|---|
| 61 | .globl __vect |
|---|
| 62 | __vect: |
|---|
| 63 | ISR_HANDLER(reset, PPC_IRQ_SYSTEM_RESET) |
|---|
| 64 | ISR_HANDLER(machine_check, PPC_IRQ_MCHECK) |
|---|
| 65 | ISR_HANDLER(dsi, PPC_IRQ_PROTECT) |
|---|
| 66 | ISR_HANDLER(isi, PPC_IRQ_ISI) |
|---|
| 67 | ISR_HANDLER(external_interrupt, PPC_IRQ_EXTERNAL) |
|---|
| 68 | ISR_HANDLER(alignment, PPC_IRQ_ALIGNMENT) |
|---|
| 69 | ISR_HANDLER(program, PPC_IRQ_PROGRAM) |
|---|
| 70 | ISR_HANDLER(fp_unavailable, PPC_IRQ_NOFP) |
|---|
| 71 | ISR_HANDLER(decrementer, PPC_IRQ_DECREMENTER) |
|---|
| 72 | ISR_HANDLER(system_call, PPC_IRQ_SCALL) |
|---|
| 73 | ISR_HANDLER(trace, PPC_IRQ_TRACE) |
|---|
| 74 | ISR_HANDLER(fp_assist, PPC_IRQ_FP_ASST) |
|---|
| 75 | ISR_HANDLER(software_emulation, PPC_IRQ_SOFTEMU) |
|---|
| 76 | ISR_HANDLER(data_bp, PPC_IRQ_DATA_BP) |
|---|
| 77 | ISR_HANDLER(istruction_bp, PPC_IRQ_INST_BP) |
|---|
| 78 | ISR_HANDLER(m_extern_bp, PPC_IRQ_MEXT_BP) |
|---|
| 79 | ISR_HANDLER(nm_extern_bp, PPC_IRQ_NMEXT_BP) |
|---|
![[RTEMS Logo]](/images/logo.png){kind=logo}
