openMSX/doc/internal/v9990_command_timing_test_results.gen

; This program was used to produce the results of v9990_command_timing_test_results.txt
; Written by Wouter Vermaelen, based on the code of Peter Mastijn
; Change the parameters at the top to specify what you are going to measure.

	org #0100

FREQ	equ	0	; 0 -> NTSC   8 -> PAL
ENABLE  equ	#82	; #82 -> display enabled  / sprites(cursor) enabled
			; #C2 ->         enabled                    disabled
			; #02 ->         disabled                   enabled
			; #42 ->         disabled                   disabled

	di
	call   init
	;call set_p2
	call   set_b0_2bpp	; change this to select mode  (set_xxx)

	call   tst_LMMM
	call   tst_BMLL
	call   tst_BMXL
	call   tst_BMLX
	call   tst_LMMV

	call   print_results

	xor    a
	ld     ix,#00d1		; set screen mode
	ld     iy,(#faf7)
	call   #001c

	ld     ix,#0141		; init palette
	ld     iy,(#faf7)
	call   #001c

	ld     ix,#0156		; clear keyb buf
	ld     iy,(#fcc0)
	call   #001c

	ld     de,text
	ld     c,#09
	jp     #0005



tst_LMMM
	call   cmd_common
	ld     hl,#0020

LMMM_0	call   wait_vblank
	call   LMMM_1
	call   wait_vblank
	call   LMMM_2
	call   wait_vblank_cmd
	jr     nz,LMMM_3
	inc    hl
	jr     LMMM_0
LMMM_3	call   setres
	jp     wait_cmd



tst_BMLL
	call   cmd_common
	ld     hl,#0020

BMLL_0	call   wait_vblank
	call   BMLL_1
	call   wait_vblank
	call   BMLL_2
	call   wait_vblank_cmd
	jr     nz,BMLL_3	; end if still busy
	inc    hl
	jr     BMLL_0
BMLL_3	call   setres
	jp     wait_cmd



tst_BMXL
	call   cmd_common
	ld     hl,#0020

BMXL_0	call   wait_vblank
	call   BMXL_1
	call   wait_vblank
	call   BMXL_2
	call   wait_vblank_cmd
	jr     nz,BMXL_3
	inc    hl
	jr     BMXL_0
BMXL_3	call   setres
	jp     wait_cmd



tst_BMLX
	call   cmd_common
	ld     hl,#0020

BMLX_0	call   wait_vblank
	call   BMLX_1
	call   wait_vblank
	call   BMLX_2
	call   wait_vblank_cmd
	jr     nz,BMLX_3
	inc    hl
	jr     BMLX_0
BMLX_3	call   setres
	jp     wait_cmd



tst_LMMV
	call   cmd_common
	ld     hl,#0020

LMMV_0	call   wait_vblank
	call   LMMV_1
	call   wait_vblank
	call   LMMV_2
	call   wait_vblank_cmd
	jr     nz,LMMV_3
	inc    hl
	jr     LMMV_0
LMMV_3	call   setres
	jp     wait_cmd



wait_vblank
	in     a,(#65)
	and    #40
	jr     nz,wait_vblank
wait0	in     a,(#65)
	and    #40
	jr     z,wait0
	ret

wait_cmd
	in     a,(#65)
	and    1
	jr     nz,wait_cmd
	ret

wait_vblank_cmd
	in     a,(#65)
	and    #40
	jr     nz,wait_vblank_cmd
wait1	in     a,(#65)
	and    #40
	jr     z,wait1
	in     a,(#65)
	and    1
	ret

setres	dec    hl
	ex     de,hl
	ld     hl,(resptr)
	ld     (hl),e
	inc    hl
	ld     (hl),d
	inc    hl
	ld     (resptr),hl
	ret

resptr	dw result
        dw hexout

digits	db "0123456789abcdef"

text	db "LMMM BMLL BMXL BMLX LMMV", 13, 10
hexout	db "0000 0000 0000 0000 0000", "$"

result	ds 80


init	ld     a,#00
	out    (#67),a		; MCLK = 0
	xor    a
	out    (#6f),a
	ld     a,#06
	out    (#64),a
	ld     bc,#1763
	ld     hl,init_regs
	otir
	ret


set_p1
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#01		; P1 mode
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / sprites enabled
	ret

set_p2
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#41		; P2 mode
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / sprites enabled
	ret

set_b0_2bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#80
	out    (#63),a		; B0 2bpp
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b0_4bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#81
	out    (#63),a		; B0 4bpp
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b0_8bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#82
	out    (#63),a		; B0 8bpp
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b0_16bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#83
	out    (#63),a		; B0 16bpp
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b1_2bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#80
	out    (#63),a		; B1 4bpp
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b1_4bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#81
	out    (#63),a		; B1 4bpp
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b1_8bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#82
	out    (#63),a		; B1 8bpp
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b1_16bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#83
	out    (#63),a		; B1 8bpp
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b2_2bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#94		; B2 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b2_4bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#95		; B2 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b2_8bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#96		; B2 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b2_16bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#97		; B2 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b3_2bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#94		; B3 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b3_4bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#95		; B3 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b3_8bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#96		; B3 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b3_16bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#97		; B3 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b4_2bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#a8		; B2 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b4_4bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#a9		; B2 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b4_8bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#aa		; B2 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b4_16bpp
	ld     a,#01
	out    (#67),a		; MCLK = 1
	ld     a,#06
	out    (#64),a
	ld     a,#ab		; B2 8bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b7_2bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#a8		; B3 2bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b7_4bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#a9		; B3 2bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b7_8bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#aa		; B3 2bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

set_b7_16bpp
	ld     a,#00
	out    (#67),a		; MCLK = 0
	ld     a,#06
	out    (#64),a
	ld     a,#ab		; B3 2bpp
	out    (#63),a
	ld     a,FREQ
	out    (#63),a		; NTSC
	ld     a,ENABLE
	out    (#63),a		; display enabled / cursor enabled
	ret

init_regs
	db #00,#00,#82,#00	; r#8 -> display enable
	db #00,#00,#00,#00
	db #00,#00,#00,#00
	db #00,#00,#00,#00
	db #00,#00,#00,#00
	db #00,#00,#00

	ret			; not used


LMMM_1	ld     a,#20
	out    (#64),a
	xor    a
	out    (#63),a
	out    (#63),a	; SX = 0
	out    (#63),a
	out    (#63),a	; SY = 0
	out    (#63),a
	out    (#63),a	; DX = 0
	out    (#63),a
	inc    a
	out    (#63),a	; DY = 256
	xor    a
	out    (#63),a
	inc    a
	out    (#63),a	; NX = 256
	ld     a,l
	out    (#63),a
	ld     a,h
	out    (#63),a	; NY = hl
	ld     a,#34
	out    (#64),a
	ret

LMMM_2	ld     a,#40	; LMMM
	out    (#63),a
	ret


BMLL_1	ld     a,#20
	out    (#64),a
	xor    a
	out    (#63),a
	out    (#63),a
	out    (#63),a
	out    (#63),a	; srcAddr = 0
	out    (#63),a
	out    (#63),a
	out    (#63),a
	ld     a,#04
	out    (#63),a  ; dstAddr = 0x40000
	xor    a
	out    (#63),a
	out    (#63),a
	ld     a,l
	out    (#63),a
	ld     a,h
	out    (#63),a	; numBytes = hl * 256
	ld     a,#34
	out    (#64),a
	ret

BMLL_2	ld     a,#a0	; BMLL
	out    (#63),a
	ret


BMXL_1	ld     a,#20
	out    (#64),a
	xor    a
	out    (#63),a
	out    (#63),a
	out    (#63),a
	out    (#63),a	; srcAddr = 0
	out    (#63),a
	out    (#63),a	; DX = 0
	out    (#63),a
	ld     a,#02
	out    (#63),a	; DY = 512
	xor    a
	out    (#63),a
	inc    a
	out    (#63),a	; NX = 256
	ld     a,l
	out    (#63),a
	ld     a,h
	out    (#63),a	; NY = hl
	ld     a,#34
	out    (#64),a
	ret

BMXL_2	ld     a,#80	; BMXL
	out    (#63),a
	ret


BMLX_1	ld     a,#20
	out    (#64),a
	xor    a
	out    (#63),a
	out    (#63),a	; SX = 0
	out    (#63),a
	out    (#63),a	; SY = 0
	out    (#63),a
	out    (#63),a
	out    (#63),a
	ld     a,#04
	out    (#63),a	; dstAddr = 0x40000
	xor    a
	out    (#63),a
	inc    a
	out    (#63),a	; NX = 256
	ld     a,l
	out    (#63),a
	ld     a,h
	out    (#63),a	; NY = hl
	ld     a,#34
	out    (#64),a
	ret

BMLX_2	ld     a,#90	; BMLX
	out    (#63),a
	ret


LMMV_1	ld     a,#24
	out    (#64),a
	xor    a
	out    (#63),a
	out    (#63),a	; DX = 0
	out    (#63),a
	ld     a,#04
	out    (#63),a	; DY = 1024
	xor    a
	out    (#63),a
	inc    a	; NX = 256
	out    (#63),a
	ld     a,l
	out    (#63),a
	ld     a,h	; NY = hl
	out    (#63),a
	ld     a,#30
	out    (#64),a
	out    (#63),a
	out    (#63),a	; FC = #3030
	ld     a,#34
	out    (#64),a
	ret

LMMV_2	ld     a,#20	; LMMV
	out    (#63),a
	ret


cmd_common
	ld     a,#2c
	out    (#64),a
	xor    a
	out    (#63),a		; ARG = 0
	ld     a,#1c
	out    (#63),a		; LOGOP = 0x1C (TPSET)
	ld     a,#ff
	out    (#63),a
	xor    a
	out    (#63),a		; WM = 0x00FF
	ret

cmd_common_2
	ld     a,#2c		; not used
	out    (#64),a
	xor    a
	out    (#63),a		; ARG = 0
	ld     a,#0c
	out    (#63),a		; LOGOP = 0x0C (PSET)
	ld     a,#ff
	out    (#63),a
	xor    a
	out    (#63),a		; WM = 0x00FF
	ret

print_results
	ld     ix,hexout
	ld     iy,result
	call   prthex
	call   prthex
	call   prthex
	call   prthex
	call   prthex
	ret

prthex	ld     hl,digits
	ld     d,0
	ld     a,(iy+#01)
	srl    a
	srl    a
	srl    a
	srl    a
	ld     e,a
	add    hl,de
	ld     a,(hl)
	ld     (ix+#00),a
	ld     hl,digits
	ld     a,(iy+#01)
	and    #0f
	ld     e,a
	add    hl,de
	ld     a,(hl)
	ld     (ix+#01),a
	ld     hl,digits
	ld     a,(iy+#00)
	srl    a
	srl    a
	srl    a
	srl    a
	ld     e,a
	add    hl,de
	ld     a,(hl)
	ld     (ix+#02),a
	ld     hl,digits
	ld     a,(iy+#00)
	and    #0f
	ld     e,a
	add    hl,de
	ld     a,(hl)
	ld     (ix+#03),a
	ld     de,#0005
	add    ix,de
	inc    iy
	inc    iy
	ret