#		date		description 						by
--		--------	------------------------------------------      ----
01		02/11/14	initial version for 68010 SBC				BDJ

(c) Bas de Jong

CHIP  sbc010 20v8

; pin  1      2      3      4      5      6      7      8      9      10     11     12
       clk    a23    a22    a21    a20    fc0    fc1    fc2    nc     /uds   /lds   GND

; pin  13     14     15     16     17     18     19     20     21     22     23     24
       /oe    /map   nc     /berr  /ramu  /raml  /rom   io     /vpa   dtack  /as    VCC

@ues sbc010

@define	ramspace "/a23 * /a22 * /a21 * /a20 * as"		;0x000000-0x0fffff
@define	romspace " a23 * /a22 * /a21 * /a20 * as"		;0x800000-0x8fffff
@define	iospace  " a23 *  a22 *  a21 *  a20 * as"		;0xf00000

EQUATIONS

rom	= romspace * /map + ramspace * map
ramu	= ramspace * uds * /map
raml	= ramspace * lds * /map
io	= iospace

vpa	= fc0 * fc1 * fc2

dtack	= romspace + ramspace

berr	= /a23*a22*as + /a23*a21*as + /a23*a20*as			;0x1xxxxx-0x7xxxxx