Apple-2-SW/alarm-clock-6502
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This commit is contained in:
Bill Chatfield 2015-08-24 02:40:05 -04:00
parent 4cc7d11da5
commit 6648236fb6
14 changed files with 855 additions and 54 deletions
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56
12hourclk.c
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@ -1,7 +1,20 @@
#include <stdio.h> /* printf, scanf */
#include <stdbool.h> /* bool */
#include <string.h> /* strerror */
#include <time.h> /* time_t, time, localtime */
#include <ctype.h> /* toupper */
#include <errno.h> /* errno */
#include "12hourclk.h"
#define TIME_ERR_RESULT ((time_t) -1)
#define LOCALTIME_ERR_RESULT NULL
#define ERR_MSG_SIZE 128
static void set_err_msg(char *prefix, int errno);
static char G_err_msg[ERR_MSG_SIZE];
static char *meridiem_text(meridiem_t m)
{
if (m == ANTE_MERIDIEM) {
@ -12,6 +25,49 @@ static char *meridiem_text(meridiem_t m)
}
}
bool set_clock(twleve_hour_clock_t *clock, struct tm *t)
{
clock->seconds = t->tm_sec;
clock->minutes = t->tm_min;
if (t->tm_hour == 0) {
clock->hours = 12;
clock->meridiem = ANTE_MERIDIEM;
}
else if (t->tm_hour < 12) {
clock->meridiem = ANTE_MERIDIEM;
}
else if (t->tm_hour == 12) {
clock->meridiem = POST_MERIDIEM;
}
else {
clock->hours = t->tm_hour - 12;
clock->meridiem = POST_MERIDIEM;
}
return true;
}
void set_err_msg(char *what_failed, int err_code)
{
snprintf(G_err_msg, ERR_MSG_SIZE, "%s: %s", what_failed, strerror(err_code));
}
bool load_system_time(twleve_hour_clock_t *clock)
{
time_t now;
bool is_successful = false; /* It will not be successful until it is. */
struct tm *curr_time;
if (time(&now) != TIME_ERR_RESULT)
if ((curr_time = localtime(&now)) != LOCALTIME_ERR_RESULT)
is_successful = set_clock(clock, curr_time);
else
set_err_msg("Localtime function failed", errno);
else
set_err_msg("Time function failed", errno);
return is_successful;
}
void read_interactively(twleve_hour_clock_t *clock)
{
char meridiem_input[3];

1
12hourclk.h
View File

@ -15,6 +15,7 @@ typedef struct {
} twleve_hour_clock_t;
extern void read_interactively(twleve_hour_clock_t *clock);
extern bool load_system_time(twleve_hour_clock_t *clock);
extern void add_one_second(twleve_hour_clock_t *clock);
extern void add_seconds(twleve_hour_clock_t *clock, uint8_t seconds);
extern void print_time(twleve_hour_clock_t *clock);

13
Makefile
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@ -13,17 +13,18 @@ endif
PGM=alarmclk
OBJS=alarmclk.o 12hourclk.o clkfreq.o
PGM2=cpufreq
OBJS2=clkfreq.o
PGM2=calibrate
OBJS2=calibrate.o
CC=cl65
AS=ca65
LD=ld65
CFLAGS=-t $(CC65_TARGET) -O
ASFLAGS=-t $(CC65_TARGET)
LDFLAGS=-t $(CC65_TARGET)
DISK_VOL=ALARMCLK
DISK_VOL=alarmclk
DISK=$(DISK_VOL).dsk
AC=java -jar lib/AppleCommander-1.3.5.14.jar
@ -36,12 +37,14 @@ all: $(DISK)
$(DISK): $(PGM) $(PGM2)
$(AC) -d $(DISK) $<
$(AC) -cc65 $(DISK) $< BIN < $<
$(AC) -d $(DISK) $(PGM2)
$(AC) -cc65 $(DISK) $(PGM2) BIN < $(PGM2)
$(PGM): $(OBJS)
$(CC) $(LDFLAGS) -o $@ $^
$(PGM2): clkfreq.s
$(AS) $(ASFLAGS) -o $@ $^
$(PGM2): $(OBJS2)
$(CC) $(LDFLAGS) -o $@ $^
# Compile and assemble rules use the defuault rules after CC and CFLAGS
# are set.

29
alarmclk.c
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@ -5,8 +5,8 @@
#include <conio.h> /* clrscr, kbhit */
#include "12hourclk.h"
extern void clkfreq();
extern uint8_t ticks[4];
extern void ClockFreq();
extern uint8_t Ticks[4];
#define CLOCK_FREQUENCY 1023000L
#define CYCLES_PER_NOOP 2
@ -23,17 +23,18 @@ static twleve_hour_clock_t alarm_time;
void main(void)
{
clkfreq();
ClockFreq();
printf("%c%c.%c%c%c%c%c%c MHz\n",
ticks[0] & 0x70,
ticks[0] & 0x07,
ticks[1] & 0x70,
ticks[1] & 0x07,
ticks[2] & 0x70,
ticks[2] & 0x07,
ticks[3] & 0x70,
ticks[3] & 0x07);
Ticks[0] & 0x70,
Ticks[0] & 0x07,
Ticks[1] & 0x70,
Ticks[1] & 0x07,
Ticks[2] & 0x70,
Ticks[2] & 0x07,
Ticks[3] & 0x70,
Ticks[3] & 0x07);
clrscr();
read_inputs();
clrscr();
@ -46,8 +47,10 @@ void main(void)
void read_inputs()
{
puts("Current Time");
read_interactively(&curr_time);
if (! load_system_time(&curr_time)) {
puts("Current Time");
read_interactively(&curr_time);
}
puts("Alarm Time");
read_interactively(&alarm_time);
}

BIN
alarmclk.dsk Normal file
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Binary file not shown.

515
alarmclk.s Normal file
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@ -0,0 +1,515 @@
;
; File generated by cc65 v 2.15 - Git 6f24c07
;
.fopt compiler,"cc65 v 2.15 - Git 6f24c07"
.setcpu "65C02"
.smart on
.autoimport on
.case on
.debuginfo off
.importzp sp, sreg, regsave, regbank
.importzp tmp1, tmp2, tmp3, tmp4, ptr1, ptr2, ptr3, ptr4
.macpack longbranch
.forceimport __STARTUP__
.import _printf
.import _puts
.import _toupper
.import _clrscr
.import _kbhit
.import _cgetc
.import _read_interactively
.import _load_system_time
.import _add_one_second
.import _print_time
.import _reprint_time
.import _ClockFreq
.import _Ticks
.export _read_inputs
.export _elapse_one_second
.export _run_clock
.export _main
.segment "RODATA"
L0009:
.byte $25,$63,$25,$63,$2E,$25,$63,$25,$63,$25,$63,$25,$63,$25,$63,$25
.byte $63,$20,$4D,$48,$7A,$0A,$00
L001F:
.byte $0A,$41,$6C,$61,$72,$6D,$20,$54,$69,$6D,$65,$3A,$20,$20,$20,$00
L0024:
.byte $0A,$43,$75,$72,$72,$65,$6E,$74,$20,$54,$69,$6D,$65,$3A,$20,$00
L002C:
.byte $43,$75,$72,$72,$65,$6E,$74,$20,$54,$69,$6D,$65,$00
L0031:
.byte $41,$6C,$61,$72,$6D,$20,$54,$69,$6D,$65,$00
L004B := L0009+22
.segment "BSS"
_curr_time:
.res 5,$00
_alarm_time:
.res 5,$00
; ---------------------------------------------------------------
; void __near__ read_inputs (void)
; ---------------------------------------------------------------
.segment "CODE"
.proc _read_inputs: near
.segment "CODE"
lda #<(_curr_time)
ldx #>(_curr_time)
jsr _load_system_time
jsr bnega
jeq L0028
lda #<(L002C)
ldx #>(L002C)
jsr _puts
lda #<(_curr_time)
ldx #>(_curr_time)
jsr _read_interactively
L0028: lda #<(L0031)
ldx #>(L0031)
jsr _puts
lda #<(_alarm_time)
ldx #>(_alarm_time)
jsr _read_interactively
rts
.endproc
; ---------------------------------------------------------------
; void __near__ elapse_one_second (void)
; ---------------------------------------------------------------
.segment "CODE"
.proc _elapse_one_second: near
.segment "CODE"
jsr decsp4
ldx #$07
lda #$FE
ldy #$00
jsr staxysp
ldx #$00
lda #$00
ldy #$02
jsr staxysp
L0050: ldy #$03
jsr ldaxysp
jsr pushax
ldy #$03
jsr ldaxysp
jsr tosltax
jne L0053
jmp L0051
L0053: nop
nop
nop
nop
nop
nop
nop
nop
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ldy #$02
ldx #$00
lda #$01
jsr addeqysp
jmp L0050
L0051: jsr incsp4
rts
.endproc
; ---------------------------------------------------------------
; void __near__ run_clock (void)
; ---------------------------------------------------------------
.segment "CODE"
.proc _run_clock: near
.segment "CODE"
jsr decsp1
lda #<(_curr_time)
ldx #>(_curr_time)
jsr _print_time
jmp L003A
L0038: jsr _elapse_one_second
lda #<(_curr_time)
ldx #>(_curr_time)
jsr _add_one_second
lda #<(_curr_time)
ldx #>(_curr_time)
jsr _reprint_time
jsr _kbhit
tax
jeq L003A
jsr _cgetc
ldy #$00
sta (sp),y
ldy #$00
ldx #$00
lda (sp),y
cmp #$1B
jsr booleq
jne L0046
ldy #$00
ldx #$00
lda (sp),y
ldx #$00
jsr _toupper
cpx #$00
bne L0048
cmp #$51
L0048: jsr booleq
jne L0046
ldy #$00
ldx #$00
lda (sp),y
cmp #$03
jsr booleq
jne L0046
ldx #$00
lda #$00
jeq L0049
L0046: ldx #$00
lda #$01
L0049: jeq L003A
lda #<(L004B)
ldx #>(L004B)
jsr _puts
jmp L0039
L003A: jmp L0038
L0039: jsr incsp1
rts
.endproc
; ---------------------------------------------------------------
; void __near__ main (void)
; ---------------------------------------------------------------
.segment "CODE"
.proc _main: near
.segment "CODE"
ldy #$00
jsr _ClockFreq
lda #<(L0009)
ldx #>(L0009)
jsr pushax
ldx #$00
lda _Ticks
ldx #$00
and #$70
jsr pushax
ldx #$00
lda _Ticks
ldx #$00
and #$07
jsr pushax
ldx #$00
lda _Ticks+1
ldx #$00
and #$70
jsr pushax
ldx #$00
lda _Ticks+1
ldx #$00
and #$07
jsr pushax
ldx #$00
lda _Ticks+2
ldx #$00
and #$70
jsr pushax
ldx #$00
lda _Ticks+2
ldx #$00
and #$07
jsr pushax
ldx #$00
lda _Ticks+3
ldx #$00
and #$70
jsr pushax
ldx #$00
lda _Ticks+3
ldx #$00
and #$07
jsr pushax
ldy #$12
jsr _printf
jsr _clrscr
jsr _read_inputs
jsr _clrscr
lda #<(L001F)
ldx #>(L001F)
jsr pushax
ldy #$02
jsr _printf
lda #<(_alarm_time)
ldx #>(_alarm_time)
jsr _print_time
lda #<(L0024)
ldx #>(L0024)
jsr pushax
ldy #$02
jsr _printf
jsr _run_clock
rts
.endproc

9
calcClkfreq.c Normal file
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@ -0,0 +1,9 @@
/* This file is only here to make clkfreq.s load successfully. */
#include "clkfreq.h"
void main()
{
clkfreq();
}

93
calibrate.s Normal file
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@ -0,0 +1,93 @@
.forceimport __STARTUP__
.export _main
.segment "RODATA"
; All numbers are going to be this size and type.
Unsigned_Integer_Size = 4
; Standard character output routine
COUT = $fded
.segment "BSS"
Sleep_Loop_Count: .res Unsigned_Integer_Size,0 ; Byte values initialized to 0
; *************************************
;
; Macros
;
; *************************************
; Number++
.macro Increment Number
.local Next_Byte
.local Done
ldx #0 ; X := 0
Next_Byte:
inc Number,X ; Increment the value at Count+X address
bne Done ; Incrementing Count did not cause it to roll over to 0.
inx ; Increment X to the next byte
cpx #Unsigned_Integer_Size ; Compare X with 4.
bmi Next_Byte ; If X < Count_Size continue with next byte.
Done:
.endmacro
; Minuend = Minuend - Subtrahend
.macro Subtract Minuend, Subtrahend
.local Next_Byte
ldx #0
clc
Next_Byte:
lda Addr1,X
sbc Addr2,X
inx
cpx #Unsigned_Integer_Size
bmi Next_Byte
.endmacro
; *************************************
;
; Main
;
; *************************************
.segment "CODE"
.proc _main: near
.segment "CODE"
Sleep_Loop:
; Do nothing 10 times.
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
Increment Sleep_Loop_Count
lda #1
cmp Sleep_Loop_Count+3
bmi Sleep_Loop
; Output result
ldx #0
Next_Byte:
lda Sleep_Loop_Count,X
jsr COUT
inx
cpx #Unsigned_Integer_Size
bmi Next_Byte
rts ; from _main
.endproc

BIN
clkfreq Normal file
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Binary file not shown.

10
clkfreq.h Normal file
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@ -0,0 +1,10 @@
#ifndef CLKFREQ_H
#define CLKFREQ_H
#include <stdint.h> /* uint8_t */
extern void clkfreq(void);
extern uint8_t ticks[4];
#endif

115
clkfreq.s
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@ -1,3 +1,18 @@
.setcpu "65C02"
.smart on
.autoimport on
.case on
.debuginfo off
.importzp sp, sreg, regsave, regbank
.importzp tmp1, tmp2, tmp3, tmp4, ptr1, ptr2, ptr3, ptr4
.macpack longbranch
.forceimport __STARTUP__
.import _fputc
.import _stdout
.export _Ticks
.export _ClockFreq
rgConfig = $6000 ; write: D6=1 - NMI is off, D6=0 - NMI is on
rgStatus = $6000 ; read: D6=0 - UART is busy
rgTxD = $5000 ; write: data to send via UART
@ -6,9 +21,12 @@ vcNMI = $FFFA
Refresh = 450 ; NMI rate in Hz
.export _clkfreq
.export _ticks
_clkfreq:
.segment "CODE"
.proc _ClockFreq: near
.segment "CODE"
ldx #<NMI ; installing the NMI vector
ldy #>NMI
stx vcNMI
@ -19,10 +37,10 @@ _clkfreq:
Again:
lda #0
sta Flag
sta _ticks ; initializing counter
sta _ticks+1
sta _ticks+2
sta _ticks+3
sta _Ticks ; initializing counter
sta _Ticks+1
sta _Ticks+2
sta _Ticks+3
lda #$FE ; initializing NMI counter (zeropoint minus 2 ticks)
sta Timer
lda #$FF
@ -45,40 +63,40 @@ L2: bit Flag ; waiting for true zeropoint
Main: ; main counting cycle
;number of ticks per command sum of ticks
; v v
lda _ticks ;4
lda _Ticks ;4
clc ;2 6
sed ;2 8
adc #$53 ;2 10
sta _ticks ;4 14
lda _ticks+1 ;4 18
sta _Ticks ;4 14
lda _Ticks+1 ;4 18
adc #0 ;2 20
sta _ticks+1 ;4 24
lda _ticks+2 ;4 28
sta _Ticks+1 ;4 24
lda _Ticks+2 ;4 28
adc #0 ;2 30
sta _ticks+2 ;4 34
lda _ticks+3 ;4 38
sta _Ticks+2 ;4 34
lda _Ticks+3 ;4 38
adc #0 ;2 40
sta _ticks+3 ;4 44
sta _Ticks+3 ;4 44
cld ;2 46
bit Flag ;4 50
bpl Main ;3 53
lda #0 ;2
sta Flag ;4 6
lda _ticks ;4 10
lda _Ticks ;4 10
clc ;2 12
sed ;2 14
adc #$95 ;2 16
sta _ticks ;4 20
lda _ticks+1 ;4 24
sta _Ticks ;4 20
lda _Ticks+1 ;4 24
adc #0 ;2 26
sta _ticks+1 ;4 30
lda _ticks+2 ;4 34
sta _Ticks+1 ;4 30
lda _Ticks+2 ;4 34
adc #0 ;2 36
sta _ticks+2 ;4 40
lda _ticks+3 ;4 44
sta _Ticks+2 ;4 40
lda _Ticks+3 ;4 44
adc #0 ;2 46
sta _ticks+3 ;4 50
sta _Ticks+3 ;4 50
cld ;2 52
lda Timer ;4 56
cmp #<Refresh ;2 58
@ -92,14 +110,16 @@ Main: ; main counting cycle
sta rgConfig
sta InUse
; Output
ldx #0 ; send first string to the host
L3: lda Mes1,x
beq L4
jsr Send
jsr PutChar
inx
jmp L3
L4: lda _ticks+3
L4: lda _Ticks+3
pha
lsr
lsr
@ -111,21 +131,24 @@ L5: pla
and #15
jsr PrintDigit
lda #'.' ; decimal point
jsr Send
lda _ticks+2
jsr PutChar
lda _Ticks+2
jsr PrintTwoDigits
lda _ticks+1
lda _Ticks+1
jsr PrintTwoDigits
lda _ticks
lda _Ticks
jsr PrintTwoDigits
ldx #0 ; send second string to the host
L6: lda Mes2,x
beq L7
jsr Send
jsr PutChar
inx
jmp L6
L7: jmp Again ; repeat process
L7:
rts
.endproc
PrintTwoDigits:
pha
@ -141,15 +164,26 @@ PrintTwoDigits:
PrintDigit:
ora #$30
jsr Send
jsr PutChar
rts
PutChar:
; The character should be in the Accumulator
ldx #$00
jsr pushax
lda _stdout
ldx _stdout+1
jsr _fputc
rts
Send:
bit rgStatus
bvc Send
sta rgTxD
rts
.segment "RODATA"
Mes1:
.byte 13
.byte "Current clock frequency is "
@ -159,11 +193,19 @@ Mes2:
.byte " MHz"
.byte 0
_ticks: .res 4,0
Timer: .res 2,0
InUse: .byte 0
Flag: .byte 0
.segment "DATA"
_Ticks: .res 4,0 ; uint8_t _Ticks[4]
Timer: .res 2,0 ; uint16_t Timer
InUse: .byte 0 ; uint8_t InUse
Flag: .byte 0 ; uint8_t Flag
.segment "CODE"
; Called when an non-maskable interrupt occurs.
; 1. Increments Timer
; 2. Sets the high bit in Flag to 1
;
NMI: ;6
pha ;3 9
inc Timer ;6 15
@ -173,3 +215,4 @@ L8: lda #$80 ;2 20
sta Flag ;4 24
pla ;4 28
rti ;6 34

37
printf.s Normal file
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@ -0,0 +1,37 @@
;
; File generated by cc65 v 2.15 - Git 6f24c07
;
.fopt compiler,"cc65 v 2.15 - Git 6f24c07"
.setcpu "65C02"
.smart on
.autoimport on
.case on
.debuginfo off
.importzp sp, sreg, regsave, regbank
.importzp tmp1, tmp2, tmp3, tmp4, ptr1, ptr2, ptr3, ptr4
.macpack longbranch
.forceimport __STARTUP__
.import _stdout
.import _fputc
.export _main
; ---------------------------------------------------------------
; void __near__ main (void)
; ---------------------------------------------------------------
.segment "CODE"
.proc _main: near
.segment "CODE"
ldx #$00
lda #$41
jsr pushax
lda _stdout
ldx _stdout+1
jsr _fputc
rts
.endproc

6
putc.c Normal file
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@ -0,0 +1,6 @@
#include <stdio.h>
void main(void)
{
putc('A', stdout);
}

25
putc.s Normal file
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@ -0,0 +1,25 @@
.file "putc.c"
.text
.globl main
.type main, @function
main:
.LFB0:
.cfi_startproc
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset 6, -16
movq %rsp, %rbp
.cfi_def_cfa_register 6
movq stdout(%rip), %rax
movq %rax, %rsi
movl $65, %edi
call _IO_putc
nop
popq %rbp
.cfi_def_cfa 7, 8
ret
.cfi_endproc
.LFE0:
.size main, .-main
.ident "GCC: (GNU) 5.1.1 20150618 (Red Hat 5.1.1-4)"
.section .note.GNU-stack,"",@progbits