| file: putimage.S | author: ITOH Yasufumi | | $NetBSD: putimage.S,v 1.5 2012/11/25 04:06:59 isaki Exp $ #include <machine/asm.h> #include "iocscall.h" # define IMGWIDTH 56 # define IMGHEIGHT 52 | | display title image | ENTRY_NOPROFILE(put_image) link %a6,#-(IMGWIDTH*IMGHEIGHT/8*2+8)| make local buffer moveal %sp,%a1 | buffer (plane #0) top moveml %d2-%d7/%a2-%a4,%sp@- lea %a1@(IMGWIDTH*IMGHEIGHT/8+4),%a4| buffer (plane #1) top movel #IMGWIDTH*0x10000+IMGHEIGHT,%a1@| image size movel %a1@+,%a4@+ lea %pc@(img_title),%a2 moveal %a2@+,%a3 1: tstb %a2@+ | skip human readable comment jne 1b lea %a2@(4),%a0 | image data here moveq #0,%d2 | (b) now have 0bit moveq #0,%d3 | (w) input bit buffer moveq #16,%d4 | (b) output bit count moveq #IMGWIDTH*IMGHEIGHT/16+0xffffff00,%d7 | d2.b: # bits in input buffer | d3.w: input buffer | d4.b: # bits in output buffer | d5.w: output buffer for plane 0 | d6.w: output buffer for plane 1 | d7.b: size count | a0: input data pointer Lrunlen: | a run entry: | value (2bit) | length-1 (3bit) subqb #5,%d2 | have enough bits? jcc Lhave5b | yes | fill byte cmpaw %a0,%a3 | the register order is significant | for word comparison beq Lrxabort 1: moveb %a0@+,%d0 addqb #8,%d2 | d2: 3: have 0bit, ..., 7: have 4bit lslw #8,%d0 | clear unused bits lsrw %d2,%d0 orw %d0,%d3 Lhave5b: | field# 19 20 21 22 23 24 25 26 27 28 29 30 31 | d3: ... v v l l l ? ? ? ? ? ? ? 0 bfexts %d3{#19,#2},%d0 | value bfextu %d3{#21,#3},%d1 | length - 1 lslw #5,%d3 Lrxloop: lslw #2,%d6 bfins %d0,%d6{#30,#2} roxrw #1,%d6 roxlw #1,%d5 subqb #1,%d4 jne 1f moveq #16,%d4 movew %d5,%a1@+ movew %d6,%a4@+ subqb #1,%d7 | end? 1: dbeq %d1,Lrxloop | fall down if end jne Lrunlen | fall down if end moveq #1,%d1 movew %a2@+,%d2 IOCS(__TPALET2) moveq #2,%d1 movew %a2@,%d2 IOCS(__TPALET2) | moveq #0x02,%d1 | plane 1 (already have it) IOCS(__TCOLOR) movel %a6@(8),%d1 movel %a6@(12),%d2 IOCS(__TEXTPUT) moveq #0x01,%d1 | plane 0 IOCS(__TCOLOR) movel %a6@(8),%d1 lea %a6@(-(IMGWIDTH*IMGHEIGHT/8*2+8)),%a1 IOCS(__TEXTPUT) Lrxabort: moveml %sp@+,%d2-%d7/%a2-%a4 unlk %a6 rts img_title: .long imgend1 | compressed image data | BSD Daemon Image, used for NetBSD boot by permission. | (Thanks for permission!) | BSD Daemon Copyright 1988 by Marshall Kirk McKusick. | All Rights Reserved. | | Permission to use the daemon may be obtained from: | Marshall Kirk McKusick | 1614 Oxford St | Berkeley, CA 94709-1608 | USA | or via email at mckusick@mckusick.com | Human readable copyright notice to be found with strings(1). | Terminate with a nul character. .asciz "\nBSD Daemon Copyright 1988 by Marshall Kirk McKusick." .word 0x5295,0xAD6A | palet1, palet2 .word 0x39c3,0x0c1c,0xd039,0xce71,0xa327,0x3830,0x739c,0xe146 .word 0x6073,0x8227,0x39ce,0x0865,0x0738,0x2184,0x1ce7,0x3233 .word 0x049c,0xe88a,0x0e73,0x9618,0x8271,0x0486,0x6646,0x2093 .word 0x9ce4,0xcc12,0x1461,0x1622,0x3104,0x9ce7,0x2653,0x10e2 .word 0x4158,0x91a8,0x24e7,0x38d1,0x9807,0x00c8,0x7216,0x6a29 .word 0x39ce,0x4440,0x1906,0x4190,0xe031,0xe452,0x739c,0x9006 .word 0x8180,0xec18,0x0221,0xc8a0,0xe739,0xb60c,0x0380,0xdc35 .word 0x149c,0xe724,0x01b0,0x601d,0x062c,0x939c,0xe6c8,0x700c .word 0x0b60,0xcc58,0x739c,0xf81e,0x09a0,0x6a49,0x39ce,0x6803 .word 0x00c0,0x701c,0x0740,0xd4d0,0x739c,0xd806,0x0100,0xe038 .word 0x0e81,0xb924,0xe726,0x0d0c,0x20e2,0xc839,0x249c,0xe4c4 .word 0x0ba4,0x0b42,0xc811,0xc920,0xe73c,0x070e,0x0383,0x44b5 .word 0x241c,0xe3c8,0x6228,0x701b,0x023f,0x8924,0xe726,0x0501 .word 0xc301,0xc8d3,0xfc49,0x0739,0xa01c,0x1219,0x0fc9,0x8924 .word 0xe716,0x2028,0x64a8,0xc441,0xc147,0x3249,0xce4c,0x0e38 .word 0x2a24,0x58ea,0x4939,0xcd00,0xe208,0x860a,0x8bea,0x0c39 .word 0xce09,0x0608,0x8e10,0x3449,0x1aa2,0x4e73,0x9d3a,0x4111 .word 0xfc45,0x2739,0xcb0c,0xa308,0x0205,0x0fea,0x2939,0xce4d .word 0x2030,0x4823,0xfdc1,0x4739,0xc68c,0x4100,0x4490,0x0c8f .word 0x70cc,0x5473,0x9ce0,0x8a22,0x1866,0x078a,0x4e72,0x6c7b .word 0x0260,0x9e03,0xc148,0x780f,0xc090,0xc970,0x04c5,0x5c06 .word 0x45a1,0x641a,0x0e47,0xa1ec,0x7903,0xd03c,0x8310,0x0643 .word 0x91e0,0x3926,0x47b1,0xe408,0x3e05,0x9044,0x190e,0x4780 .word 0xe49a,0x0c38,0x2c1c,0x390e,0x8100,0x683a,0x2689,0xa0c3 .word 0x00d0,0x722d,0x0780,0xc8b4,0x2d8f,0x25d0,0x721c,0x8720 .word 0xc872,0x1c8b,0xa5d8,0xb25d,0x0721,0xd032,0x0c87,0x21c8 .word 0xb22c,0x8141,0xd872,0x5c86,0x1916,0xc190,0xe43a,0x0e81 .word 0x0403,0x2188,0x740d,0x1341,0xc8f6,0x0d8f,0x22d0,0x220c .word 0x8300,0x9032,0x0c97,0x300e,0x49a0,0x6478,0x0645,0x91e8 .word 0x1816,0x0190,0x647b,0x1649,0x90e8,0x380e,0x4180,0x645a .word 0x0e83,0x90e4,0x3b1e,0xc981,0x6c79,0x07c5,0xd0f8,0x2939 .word 0xc523,0x8946,0x820d,0x0c45,0x070f,0x6192,0xde08,0x3832 .word 0x0572,0x083c,0x3920,0x721a,0x9ac8,0x8868,0xf889,0xc160 .word 0x4377,0x8a84,0x88ee,0xd891,0xc2b0,0x2200,0xb2a2,0xa1c3 .word 0x10dc,0x1564,0x1ce3,0x79c6,0x9022,0x2258,0x1073,0x9ce7 .word 0x2a20,0x701c .even imgend1:
