Re: Duplex mode

Tom,
I saw function asix_networkmode(), and tried unsuccessfully to follow the code to see what mode was being set.
In net_defs.lib is the following define:
#define PD_NETWORK_MODE 110   // int, int (speed, duplex)
I can't figure out how to decipher the value of 110.
And in ASIX.LIB, in function asix_ioctl() is a large switch statement that uses the define in one of the cases:
#ifdef PD_NETWORK_MODE
 ;case PD_NETWORK_MODE:
  ld  hl, PD_NETWORK_MODE
  xor a
  sbc hl, de
  jp  z, .asix_ioctl_networkmode
#endif

Notice that whatever value is in register de is subtracted from the value 110, with the result placed in hl.
Then function asix_ioctl_networkmode() is called where the first statement wipes out whatever value was in hl. So now what?
#ifdef PD_NETWORK_MODE
.asix_ioctl_networkmode:
 ;case PD_NETWORK_MODE
  ;return asix_networkmode(nic, *(int *) stack, *(int *) (stack + sizeof(int)));
  ld  hl, (sp+@sp+stack)
  ld  hl, (hl+sizeof(int))
  push hl
  ld  hl, (sp+@sp+stack+2)
  ld  hl, (hl)
  push hl
  ld  hl, (sp+@sp+nic+4)
  push hl
  asix_internal_call(asix_networkmode)
  add sp, 6
  ld  (sp+@sp+retval), hl
  jr  .asix_ioctl_return
#endif

So I have no clue as to what mode is being set.
Steve

      From: "'Tom Collins' tom-lnEA/wrDJtNWk0Htik3J/[email protected] [rabbit-semi]" <[email protected]>
 To: [email protected] 
 Sent: Wednesday, September 23, 2015 11:55 AM
 Subject: RE: [rabbit-semi] Duplex mode
   
    Steve,  It looks like asix_networkmode() in tcpip/ASIX.LIB (the driver used by the RCM3900, as shown in tcpip/BOARD_DEPS.LIB) supports a parameter for setting half or full duplex.  -Tom  From: [email protected] [mailto:[email protected]] 
Sent: Wednesday, September 16, 2015 2:08 PM
To: [email protected]
Subject: [rabbit-semi] Duplex mode    The RCM3900 is capable of both half and full duplex mode for Ethernet.  I believe that configuration is done during network negotiation. I don't need to set some #define or the like to get full duplex mode to work do I?  Steve,_._,___  #yiv3984947364 #yiv3984947364 -- #yiv3984947364ygrp-mkp {border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;}#yiv3984947364 #yiv3984947364ygrp-mkp hr {border:1px solid #d8d8d8;}#yiv3984947364 #yiv3984947364ygrp-mkp #yiv3984947364hd {color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;}#yiv3984947364 #yiv3984947364ygrp-mkp #yiv3984947364ads {margin-bottom:10px;}#yiv3984947364 #yiv3984947364ygrp-mkp .yiv3984947364ad {padding:0 0;}#yiv3984947364 #yiv3984947364ygrp-mkp .yiv3984947364ad p {margin:0;}#yiv3984947364 #yiv3984947364ygrp-mkp .yiv3984947364ad a {color:#0000ff;text-decoration:none;}#yiv3984947364 #yiv3984947364ygrp-sponsor #yiv3984947364ygrp-lc {font-family:Arial;}#yiv3984947364 #yiv3984947364ygrp-sponsor #yiv3984947364ygrp-lc #yiv3984947364hd {margin:10px 0px;font-weight:700;font-size:78%;line-height:122%;}#yiv3984947364 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