diff options
Diffstat (limited to 'nuttx/arch/sh/include/sh1/irq.h')
| -rw-r--r-- | nuttx/arch/sh/include/sh1/irq.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/nuttx/arch/sh/include/sh1/irq.h b/nuttx/arch/sh/include/sh1/irq.h index fd738c8f0..05319891d 100644 --- a/nuttx/arch/sh/include/sh1/irq.h +++ b/nuttx/arch/sh/include/sh1/irq.h @@ -327,6 +327,46 @@ /* 116-255 reserved */ #endif +/* IRQ Stack Frame Format. The SH-1 has a push down stack. The PC + * and SR are pushed by hardware at the time an IRQ is taken. + */ + +/* Saved to the stacked by up_vector */ + +#define REG_R0 (0) +#define REG_R1 (1) +#define REG_R2 (2) +#define REG_R3 (3) +#define REG_R5 (5) +#define REG_R6 (6) +#define REG_R7 (7) +#define REG_R8 (8) +#define REG_R9 (9) +#define REG_R10 (10) +#define REG_R11 (11) +#define REG_R12 (12) +#define REG_R13 (13) +#define REG_R14 (14) + +#define REG_PR (15) +#define REG_GBR (16) +#define REG_MACH (17) +#define REG_MACL (18) + +/* Saved to the stack by the trampoline logic */ + +#define REG_R4 (19) +#define REG_R15 (20) +#define REG_SP REG_R15 + +/* Pushed by hardware when the exception is taken */ + +#define REG_PC (21) +#define REG_SR (22) + +#define XCPTCONTEXT_REGS (23) +#define XCPTCONTEXT_SIZE (4 * XCPTCONTEXT_REGS) + /************************************************************************************ * Public Types ************************************************************************************/ |