tiny68k: Report correct RAM on tiny68k and on t68krc

diff --git a/Kernel/platform-tiny68k/p68000.S b/Kernel/platform-tiny68k/p68000.S
index 3a08df1..f734a72 100644 (file)
--- a/Kernel/platform-tiny68k/p68000.S
+++ b/Kernel/platform-tiny68k/p68000.S
@@ -34,10 +34,25 @@ init_early:
 ;      FIXME: could be in discard if we wanted
 ;
 init_hardware:
+           lea $30000,a0               ; will be wrapped on the rc2014
+           lea $10000,a1               ; well above the kernel
+           move.w #$AA55,(a0)
+           cmp.w #$AA55,(a1)
+           bne tiny68k
+           move.w #$55AA,(a0)
+           cmp.w #$55AA,(a1)
+           bne tiny68k
+           move.w #2048,d0
+           bra kernelmem
+tiny68k:
             ; set system RAM size(hardcode hacks for now)
            move.w #16352,d0
+kernelmem:
            move.w d0,ramsize
-           sub.w  #64,d0               ; Guess for kernel
+           move.l #_end+512,d1
+           lsr.l #8,d1
+           lsr.l #2,d1
+           sub.w  d1,d0                ; Guess for kernel
            move.w d0,procmem           ; guesses for now
 
            bsr install_vectors