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- added option of changing vga update interval on the fly.

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This commit is contained in:
Bryce Denney 2001-06-09 19:57:56 +00:00
parent de160ff62b
commit c8c5a94297
2 changed files with 12 additions and 3 deletions
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13
bochs/iodev/vga.cc
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@ -188,7 +188,7 @@ bx_vga_c::init(bx_devices_c *d, bx_cmos_c *cmos)
}
BX_INFO(("interval=%lu", bx_options.vga_update_interval));
bx_pc_system.register_timer(this, timer_handler,
BX_VGA_THIS timer_id = bx_pc_system.register_timer(this, timer_handler,
bx_options.vga_update_interval, 1, 1);
cmos->s.reg[0x14] = (cmos->s.reg[0x14] & 0xcf) | 0x00; /* video card with BIOS ROM */
@ -1109,6 +1109,14 @@ BX_VGA_THIS s.sequencer.bit1 = (value >> 1) & 0x01;
}
}
void
bx_vga_c::set_update_interval (unsigned interval)
{
bx_options.vga_update_interval = interval;
BX_INFO (("Changing timer interval to %d\n", interval));
BX_VGA_THIS timer ();
bx_pc_system.activate_timer (BX_VGA_THIS timer_id, interval, 1);
}
void
bx_vga_c::timer_handler(void *this_ptr)
@ -1142,8 +1150,7 @@ bx_vga_c::update(void)
// if (BX_VGA_THIS s.vga_mem_updated==0 || BX_VGA_THIS s.attribute_ctrl.video_enabled == 0)
if (BX_VGA_THIS s.vga_mem_updated==0) {
//BX_DEBUG(("update(): updated=%u enabled=%u",
//(unsigned) BX_VGA_THIS s.vga_mem_updated, (unsigned) BX_VGA_THIS s.attribute_ctrl.video_enabled);
/* BX_DEBUG(("update(): updated=%u enabled=%u", (unsigned) BX_VGA_THIS s.vga_mem_updated, (unsigned) BX_VGA_THIS s.attribute_ctrl.video_enabled)); */
return;
}
BX_VGA_THIS s.vga_mem_updated = 0;

2
bochs/iodev/vga.h
View File

@ -175,10 +175,12 @@ private:
#else
void write(Bit32u address, Bit32u value, unsigned io_len, Boolean no_log);
#endif
int timer_id;
public:
static void timer_handler(void *);
BX_VGA_SMF void timer(void);
BX_VGA_SMF void set_update_interval (unsigned interval);
private:
BX_VGA_SMF void update(void);
BX_VGA_SMF void dump_status(void);