penguin86/pato-z80-home-computer
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Seemingly working immediate load in monitor

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Daniele Verducci su MatissePenguin
2020-12-09 21:01:57 +01:00
parent 72e4bee080
commit 76f8910773
2 changed files with 33 additions and 10 deletions
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11
assembly/bios/drivers/arduino_terminal.asm
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@ -26,7 +26,7 @@ Term_printc:
out (TERM_DATA_REG),a
ret
; Reads a single character
; Reads a single character. 0s are ignored (can be used with keyboard)
; @return A The read character
Term_readc:
in a, (TERM_DATA_REG) ; reads a character
@ -34,7 +34,7 @@ Term_readc:
jp z, Term_readc ; if char is 0 (NULL), ignores it and waits for another character
ret ; if not NULL, returns it in the a register
; Reads a line
; Reads a line. 0s are ignored (can be used with keyboard)
; @return BC The pointer to a null-terminated read string
Term_readline:
ld bc, incoming_string ; this array will contain read string
@ -55,3 +55,10 @@ Term_readline:
;ld (bc), 0 ; Null-terminate string
ld bc, incoming_string ; Returns read string pointer
ret
; Reads the byte currently on the I/O bus at the provided address.
; 0s are not ignored (cannot be used with keyboard)
; Affects NO condition bits!
Term_readb:
in a, (TERM_DATA_REG) ; reads a byte
ret