diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/gen68360/start360/start360.s')
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/start360/start360.s | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68360/start360/start360.s b/c/src/lib/libbsp/m68k/gen68360/start360/start360.s index 89ab98a806..77c4ff3115 100644 --- a/c/src/lib/libbsp/m68k/gen68360/start360/start360.s +++ b/c/src/lib/libbsp/m68k/gen68360/start360/start360.s @@ -56,7 +56,7 @@ Entry: .long uhoh | 21: .long uhoh | 22: .long uhoh | 23: - .long uhoh | 24: Spurious interrupt + .long spurious_interrupt | 24: Spurious interrupt .long uhoh | 25: Level 1 interrupt autovector .long uhoh | 26: Level 2 interrupt autovector .long uhoh | 27: Level 3 interrupt autovector @@ -298,6 +298,13 @@ uhoh: nop | Leave spot for breakpoint bra.s uhoh | Stuck forever /* + * Log, but otherwise ignore, spurious interrupts + */ +spurious_interrupt: + addql #1,SYM(_M68kSpuriousInterruptCount) + rte + +/* * Place the low-order 3 octets of the board's ethernet address at * a `well-known' fixed location relative to the beginning of ROM. */ @@ -307,7 +314,7 @@ uhoh: nop | Leave spot for breakpoint /* * Initial PC */ - .global start + .global start start: /* * Step 2: Stay in Supervisor Mode @@ -386,6 +393,8 @@ ZEROLOOPTEST: | Should this just force a reset? mainDone: nop | Leave spot for breakpoint + movew #1,a7 | Force a double bus error + movel d0,a7@- | This should cause a RESET stop #0x2700 | Stop with interrupts disabled bra.s mainDone | Stuck forever @@ -398,9 +407,14 @@ SYM (_StackSize): .long StackSize END_CODE -BEGIN_BSS +BEGIN_DATA_DCL .align 2 PUBLIC (environ) SYM (environ): .long 0 + PUBLIC (_M68kSpuriousInterruptCount) +SYM (_M68kSpuriousInterruptCount): + .long 0 +END_DATA_DCL + END |