Quote:
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Which kickstart does it work on, on the A1000?
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booting off kick 1.3 floppy
I will try that version you linked on my A500 and see if there is any difference
EDIT: Here is the logic for that U60 chip that makes it work on the Phoenix.
Code:
TITLE PHOENIX BOARD RAM SELECT PAL
PATTERN PHNXRAME.PDS
REVISION E
AUTHOR ANDREW J WILSON
COMPANY PHOENIX MICROTECHNOLOGIES PTY LTD, ADELAIDE STH. AUSTRALIA
DATE 18/12/90 4.50 AM
CHIP RAMEN PALC22V10
; 1 2 3 4 5 6 7 8 9 10 11 12
DTACK CASLI XRAMI CASUI A19 A20 A21 A22 A23 SELX SEL1 GND
; 13 14 15 16 17 18 19 20 21 22 23 24
SEL2 GA4 GA3 GA2 GA1 GA0 CASU1 CASU0 CASL1 CASL0 XRAMO VCC
GLOBAL
EQUATIONS
/CASL0 = /CASLI * GA4
/CASU0 = /CASUI * GA4
/GA0 = /A23 * /A22 * /A21 * /A20 * /A19 ; GARY THINKS 080000 IS 080000
+ /A23 * /A22 * /A21 * A20 * /A19 ; GARY THINKS 180000 IS 180000
+ A23 * /A22 * A21 * /A20 * /A19 ; GARY THINKS A80000 IS A80000
+ A23 * /A22 * A21 * A20 * /A19 ; GARY THINKS B80000 IS B80000
+ A23 *A22 */A21 */A20 *A19 */SEL1 *SEL2 ; POOR GARY THINKS C80000 IS C00000
+ A23 * A22 * /A21 * /A20 * /A19 ; GARY THINKS C00000 IS C00000
+ A23 * A22 * /A21 * A20 * /A19 ; GARY THINKS D80000 IS D80000
+ A23 * A22 * A21 * /A20 * /A19 ; GARY THINKS E80000 IS E80000
+ A23 * A22 * A21 * A20 * /A19 ; GARY THINKS F80000 IS F80000
+ /A23 * /A22 * A21 * /A20 * /A19 ; GARY THINKS 280000 IS 280000
+ /A23 * /A22 * A21 * A20 * /A19 ; GARY THINKS 380000 IS 380000
+ /A23 * A22 * /A21 * /A20 * /A19 ; GARY THINKS 480000 IS 480000
+ /A23 * A22 * /A21 * A20 * /A19 ; GARY THINKS 580000 IS 580000
+ /A23 * A22 * A21 * /A20 * /A19 ; GARY THINKS 680000 IS 680000
+ /A23 * A22 * A21 * A20 * /A19 ; GARY THINKS 780000 IS 780000
+ A23 * /A22 * /A21 * /A20 * /A19 ; GARY THINKS 880000 IS 800000
/GA1 = /A20
/GA2 = /A21
/GA3 = /A22
/GA4 = A23 * A22 * /A21 * /A20 * /A19 * SEL1 * SEL2 * /DTACK
+ /A23 * /A22 * /A21 * A20 * A19 * SEL1 * SEL2 * /DTACK
+ A23 * A22 * /A21 * /A20 * /SEL1 * SEL2 * /DTACK
+ /A23 * /A22 * /A21 * A20 * SEL1 * /SEL2 * /DTACK
/XRAMO = A23 * A22 * /A21 * /A20 * /A19 * SEL1 * SEL2
+ A23 * A22 * /A21 * /A20 * /SEL1 * SEL2
/CASL1 = /CASLI * A23 * A22 * /A21 * /A20 * /A19 * SEL1 * SEL2 * /DTACK
+ /CASLI * /A23 * /A22 * /A21 * A20 * A19 * SEL1 * SEL2 * /DTACK
+ /CASLI * A23 * A22 * /A21 * /A20 * /SEL1 * SEL2 * /DTACK
+ /CASLI * /A23 * /A22 * /A21 * A20 * SEL1 * /SEL2 * /DTACK
/CASU1 = /CASUI * A23 * A22 * /A21 * /A20 * /A19 * SEL1 * SEL2 * /DTACK
+ /CASUI * /A23 * /A22 * /A21 * A20 * A19 * SEL1 * SEL2 * /DTACK
+ /CASUI * A23 * A22 * /A21 * /A20 * /SEL1 * SEL2 * /DTACK
+ /CASUI * /A23 * /A22 * /A21 * A20 * SEL1 * /SEL2 * /DTACK
; IF SEL1 AND SEL2 (PINS 1&2 AND 3&4 OF L55) ARE HIGH THEN TWO BLOCKS OF 512K
; APPEAR AT 180000-1FFFFE AND C00000-C7FFFE. IF SEL1 IS LOW (LINK INSTALLED)
; THEN ONE 1MEG BLOCK OF MEMORY APPEARS AT C00000-CFFFFE (I HOPE). IF SEL2 IS
; LOW THEN MEMORY APPEARS AS ONE 2MEG CONTIGUOUS BLOCK FROM 000000-1FFFFE.
SIMULATION
;TRACE_ON
;TRACE_OFF