6502/perfect6502
1
0
Fork 0
mirror of https://github.com/mist64/perfect6502.git synced 2025-04-03 20:30:12 +00:00
Code Issues Projects Releases Wiki Activity

cleanup

Browse Source
This commit is contained in:
Michael Steil 2010-09-24 09:51:26 +00:00
parent 0439329fc0
commit 68464e523f
1 changed files with 12 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
perfect6502.c
View File

@ -63,13 +63,13 @@ typedef int BOOL;
************************************************************/
enum {
STATE_VCC,
STATE_PU,
STATE_FH,
STATE_VCC, /* node is VCC */
STATE_PU, /* node is connected to VCC */
STATE_FH, /* node was connected to VCC */
#define isNodeHigh(nn) (nodes_state[nn] <= STATE_FH) /* everything above is high */
STATE_GND,
STATE_FL,
STATE_PD,
STATE_GND, /* node is GND */
STATE_PD, /* node is connexted to GND */
STATE_FL, /* node was connected to GND */
};
/* the smallest types to fit the numbers */
@ -313,12 +313,14 @@ addNodeToGroup(nodenum_t i)
}
/*
* 1. if there is a pullup node, it's STATE_PU
* 2. if there is a pulldown node, it's STATE_PD
* 1. if the group is connected to GND, it's STATE_GND
* 2. if the group is connected to VCC, it's STATE_VCC
* 3a. if there is a pullup node, it's STATE_PU
* 3b. if there is a pulldown node, it's STATE_PD
* (if both 1 and 2 are true, the first pullup or pulldown wins, with
* a statistical advantage towards STATE_PU)
* 3. otherwise, if there is an FH node, it's STATE_FH
* 4. otherwise, it's STATE_FL (if there is an FL node, which is always the case)
* 4. otherwise, if there is an FH node, it's STATE_FH
* 5. otherwise, it's STATE_FL (if there is an FL node, which is always the case)
*/
state_t
getNodeValue()