Re: Amiga screen modes in wscons

[mlelstv%serpens.de@localhost (Michael van Elst)]

cmilanf%hispamsx.org@localhost (=?iso-8859-1?Q?Carlos_Mil=E1n_Figueredo?=) writes:

>Hi everyone!
>Is there a way to change the screen mode used by wscons at boot time?

I don't think so.

>[1] https://i.postimg.cc/FHJrK3wk/warpedvision-netbsd-aga.png
>[2] https://i.postimg.cc/VsGmBK8b/warpedvision-netbsd-ecs.png

It's possible that a kernel compiled without option GRF_AGA_VGA
works better for you.

The code for setting up the graphics is in sys/arch/amiga/dev/grfabs_cc.c:

/* static, so I can patch and play */

#ifdef GRF_AGA_VGA
int     pAGA_htotal  = 0x079;
int     pAGA_vtotal  = 0x24d;
int     pAGA_vbstop  = 0x019;
int     pAGA_hcenter = 0x04b;
#else
int     pAGA_htotal  = 0x081;
int     pAGA_vtotal  = 0x23d;
int     pAGA_vbstop  = 0x017;
int     pAGA_hcenter = 0x04f;
#endif
int     pAGA_hsstrt  = 0x00f;
int     pAGA_hsstop  = 0x019;
int     pAGA_hbstrt  = 0x001;
int     pAGA_hbstop  = 0x021;
int     pAGA_vsstrt  = 0x001;
int     pAGA_vsstop  = 0x008;
int     pAGA_vbstrt  = 0x000;


So you could also patch the kernel binary instead of recompiling.