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set 6850 to divide-by-1 instead of divide-by-64

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Scott Alfter
2024-05-03 13:50:06 -07:00
parent e75d651477
commit fedce53741
3 changed files with 4 additions and 4 deletions
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4
Makefile
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@@ -1,7 +1,7 @@
# Makefile for 'tester.hex' # Makefile for 'tester.hex'
AS=z80asm AS=z88dk-z80asm
APPMAKE=appmake APPMAKE=z88dk-appmake
PPZSUM=ppzsum PPZSUM=ppzsum
all: tester.hex all: tester.hex

2
tester.asm
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@@ -93,7 +93,7 @@ RST38: reti ; Interrupt mode 1 address. Ignore and return
mcinit: ld a,$03 ; Reset 6850 ACIA mcinit: ld a,$03 ; Reset 6850 ACIA
out (ACIAS),a out (ACIAS),a
ld a,$96 ; Initialise ACIA to divide-by-64 ld a,$94 ; Initialise ACIA to divide-by-1
out (ACIAS),a out (ACIAS),a
; TODO: initialise all the other RC2014 I/O devices ; TODO: initialise all the other RC2014 I/O devices

2
tester.hex
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@@ -1,7 +1,7 @@
:10000000F3ED5631FFFF1832E90000000000000058 :10000000F3ED5631FFFF1832E90000000000000058
:10001000E900000000000000E9000000000000000E :10001000E900000000000000E9000000000000000E
:10002000E900000000000000E900000000000000FE :10002000E900000000000000E900000000000000FE
:10003000E900000000000000ED4D3E03D3803E9635 :10003000E900000000000000ED4D3E03D3803E9437
:10004000D380218500FD214C00C356083E3EFD2192 :10004000D380218500FD214C00C356083E3EFD2192
:100050005500C33408215B00C37408FD216200C34E :100050005500C33408215B00C37408FD216200C34E
:100060003408E65FFE41FA8200FE5BF28200D64170 :100060003408E65FFE41FA8200FE5BF28200D64170