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eZ80: uart driver init and pre-init functions defer to routines within the eZ80 Flash rom

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Dean Netherton
2024-06-02 09:34:31 +10:00
parent 57364bb581
commit 2bc807edc8
1 changed files with 11 additions and 4 deletions
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15
Source/HBIOS/ez80uart.asm
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@@ -14,6 +14,9 @@ LSR_THRE .EQU $20
; #DEFINE CALLIL(a,b) .DB $5B,$CD \ .DW b \ .DB b
; call.IL $01FFxx WHERE xx IS r*4
#DEFINE FIRMWARE_FN(r) .DB $5B,$CD \ .DW ($FF00+(r*4)) \ .DB $01
EZUART_PREINIT:
LD E, 'A'
CALL EZUART_OUT
@@ -27,6 +30,9 @@ EZUART_PREINIT:
CALL EZUART_OUT
LD E, 10
CALL EZUART_OUT
FIRMWARE_FN(0)
RET
EZUART_INIT:
@@ -43,10 +49,11 @@ EZUART_INIT:
LD E, 10
CALL EZUART_OUT
;call.il, $001000
.db $5B,$CD
.dw $1000
.db $00
FIRMWARE_FN(1)
; ;call.il, $001000
; .db $5B,$CD
; .dw $FF00
; .db $01
RET