New target supervision

git-svn-id: svn://svn.cc65.org/cc65/trunk@2497 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/supervision/Makefile

@@ -0,0 +1,35 @@
+#
+# cc65 makefile for the supervision specific modules
+#
+
+.SUFFIXES: .o .s .c
+
+#--------------------------------------------------------------------------
+# Rules
+
+%.o:   	%.c
+	@$(CC) $(CFLAGS) $<
+	@$(AS) -o $@ $(AFLAGS) $(*).s
+
+%.o:	%.s
+	@$(AS) -g -o $@ $(AFLAGS) $<
+
+#--------------------------------------------------------------------------
+# Object files
+
+C_OBJS =
+
+S_OBJS  =       crt0.o
+
+#--------------------------------------------------------------------------
+# Targets
+
+.PHONY:	all clean zap
+
+all:   	$(C_OBJS) $(S_OBJS)
+
+clean:
+	@$(RM) $(C_OBJS:.c=.s) $(C_OBJS) $(S_OBJS)
+
+zap:	clean
+

libsrc/supervision/crt0.s

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+;
+; Startup code for cc65 (supervision version)
+;
+; This must be the *first* file on the linker command line
+;
+
+        .export         _exit
+
+	.import	        _main
+        .import         initlib, donelib, copydata
+        .import         zerobss
+	.import		__RAM_START__, __RAM_SIZE__	; Linker generated
+
+	.include "zeropage.inc"
+	.include "supervision.inc"
+
+	.export	_sv_irq_timer_counter, _sv_irq_dma_counter
+	.export	_sv_nmi_counter
+
+.bss
+
+_sv_irq_dma_counter:    .byte 0
+_sv_irq_timer_counter:  .byte 0
+_sv_nmi_counter:        .byte 0
+
+.code
+
+reset:
+	jsr	zerobss
+
+	; initialize data
+	jsr	copydata
+
+	lda	#>(__RAM_START__ + __RAM_SIZE__)
+       	sta	sp+1   		; Set argument stack ptr
+       	stz	sp              ; #<(__RAM_START__ + __RAM_SIZE__)
+	jsr	initlib
+	jsr	_main
+_exit:	jsr     donelib
+exit:   jmp    	exit
+
+
+.proc   irq
+	pha
+	lda	sv_irq_source
+	and	#SV_IRQ_REQUEST_TIMER
+	beq	not_timer
+	lda	sv_timer_quit
+	inc	_sv_irq_timer_counter
+not_timer:
+	lda	sv_irq_source
+	and	#SV_IRQ_REQUEST_DMA
+	beq	not_dma
+	lda	sv_dma_quit
+	inc	_sv_irq_dma_counter
+not_dma:
+	pla
+	rti
+.endproc
+
+.proc   nmi
+	inc	_sv_nmi_counter
+	rti
+.endproc
+
+; removing this segment gives only a warning
+        .segment "FFF0"
+.proc reset32kcode
+        lda     #(6<<5)
+        sta     sv_bank
+; now the 32kbyte image can reside in the top of 64kbyte, 128kbyte roms
+        jmp     reset
+.endproc
+
+        .segment "VECTOR"
+
+.word   nmi
+.word   reset32kcode
+.word   irq
+
+

libsrc/supervision/supervision.inc

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+; supervision symbols
+
+;  supervision 65c02s
+; in cc65 up to 2.9.1 65c02 means 65c02s
+.pc02
+
+lcd_addr = $4000
+LCD_LINESIZE = $30
+LCD_WIDTH = 160
+LCD_HEIGHT = 160
+; 2 bit per pixel, packed
+
+lcd_width = $2000
+lcd_height = $2001
+lcd_xpos = $2002 ; in pixel, bit 0+1 not used
+lcd_ypos = $2003 ; weird
+
+sv_port_r = $2021
+sv_port_w = $2022
+
+sv_timer_count = $2023
+; read for quitting
+sv_timer_quit = $2024
+
+; bit 0 timer, bit 1 dma
+sv_irq_source = $2027
+SV_IRQ_REQUEST_TIMER = 1
+SV_IRQ_REQUEST_DMA = 2
+
+; bit 5,6,7 select bank at 0x8000
+sv_bank = $2026
+SV_NMI_ENABLE_ON = 1
+SV_IRQ_ENABLE_TIMER = 2
+SV_IRQ_ENABLE_DMA = 4
+SV_LCD_ON = 8
+SV_TIMER_MODE_240Hz = $10 ; else 15360
+
+
+; low activ/pressed
+sv_control = $2020
+SV_RIGHT = 1
+SV_LEFT = 2
+SV_DOWN = 4
+SV_UP = 8
+SV_BUTTONB = $10
+SV_BUTTONA = $20
+SV_SELECT = $40
+SV_START = $80
+
+; frequency=125000/counter
+sv_audio_right_counter = $2010 ;word
+sv_audio_left_counter = $2014
+SV_AUDIO_ON =$40
+;bits 0..3 volume
+; bit 4 ?
+; bit 5 ?
+sv_audio_right_control = $2012
+sv_audio_left_control = $2016
+; write activates tone for x/60 sec (0 means 256)
+sv_audio_right_timer = $2013
+sv_audio_left_timer = $2017
+
+
+;read for irq quitting
+sv_dma_quit = $2025
+sv_dma_on = $201c
+; bit 7 true start, false stop
+sv_dma_start = $2018 ; word
+sv_dma_size = $201a ; *32 samples
+sv_dma_control = $201b
+; bit 0,1 speed: 0 15360, 11 15360/4
+; bit 2,3 volume: 0 silent, 11 loud
+
+sv_noise_volume = $2028 ; and frequency
+sv_noise_timer = $2029
+sv_noise_control = $202a