[hatari-devel] Hatari interrupts still assert, if VDI mode is used

[Eero Tamminen]

Hi,

Latest Hatari version in repo still asserts.  It happens always on startup
if I do following:
./hatari --machine tt --tos etos512k.img -s 14 --vdi-planes 1 --vdi-width 
800 --vdi-height 600  -d .

Gdb says:
(gdb) break abort
...
VDI screen: request = 800x600 at 1, aligned result = 768x592 at 1
...
hatari: int.c:392: Int_AddRelativeInterruptWithOffset: Assertion `CycleTime 
>= 0' failed.
[Switching to Thread 0xb79636b0 (LWP 16343)]

Breakpoint 2, 0xb7bdde95 in abort () from /lib/i686/cmov/libc.so.6
(gdb) bt
#0  0xb7bdde95 in abort () from /lib/i686/cmov/libc.so.6
#1  0xb7bd55be in __assert_fail () from /lib/i686/cmov/libc.so.6
#2  0x08063ce6 in Int_AddRelativeInterruptWithOffset (CycleTime=-45940,
    CycleType=1, Handler=INTERRUPT_VIDEO_ENDLINE, CycleOffset=0) at 
int.c:392
#3  0x08063d17 in Int_AddRelativeInterrupt (CycleTime=-45940, CycleType=1,
    Handler=INTERRUPT_VIDEO_ENDLINE) at int.c:352
#4  0x08078684 in Video_AddInterrupt (Pos=-45940,
    Handler=INTERRUPT_VIDEO_ENDLINE) at video.c:2404
#5  0x0807be96 in Video_Sync_WriteByte () at video.c:2417
#6  0x080643bf in IoMem_bput (addr=16744970, val=2) at ioMem.c:358
#7  0x080b142c in op_11fc_0_ff (opcode=4604) at memory.h:123
#8  0x08081fe2 in m68k_go (may_quit=1) at newcpu.c:1709
#9  0x080667b9 in M68000_Start () at m68000.c:224
#10 0x08067309 in main (argc=15, argv=0x18) at main.c:712
(gdb) up 4
#4  0x08078684 in Video_AddInterrupt (Pos=-45940,
    Handler=INTERRUPT_VIDEO_ENDLINE) at video.c:2404
2404                    Int_AddRelativeInterrupt ( Pos - LineCycles + 
nCyclesPerLine , INT_CPU_CYCLE, Handler );
(gdb) info locals
FrameCycles = 46984
HblCounterVideo = 1
LineCycles = 46476
(gdb) print Pos
$3 = -45940
(gdb) print nCyclesPerLine
$4 = 508

Using evenly aligned 1024x768x1bpp VDI resolution:
#4  0x08078684 in Video_AddInterrupt (Pos=-45940,
    Handler=INTERRUPT_VIDEO_ENDLINE) at video.c:2404
2404                    Int_AddRelativeInterrupt ( Pos - LineCycles + 
nCyclesPerLine , INT_CPU_CYCLE, Handler );
(gdb) info locals
FrameCycles = 46984
HblCounterVideo = 1
LineCycles = 46476

Using 640x400x4bpp VDI resolution:
#4  0x08078684 in Video_AddInterrupt (Pos=-33240,
    Handler=INTERRUPT_VIDEO_ENDLINE) at video.c:2404
2404                    Int_AddRelativeInterrupt ( Pos - LineCycles + 
nCyclesPerLine , INT_CPU_CYCLE, Handler );
(gdb) info locals
FrameCycles = 34284
HblCounterVideo = 1
LineCycles = 33776


	- Eero