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annotate level1/modules/dwwrite.asm @ 2958:77500452de1c

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bootman: Rename assembler files to .as
author Tormod Volden <debian.tormod@gmail.com>
date Sun, 09 Feb 2014 22:53:29 +0100
parents 28ed72477814
children 1cef81d100ce
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2772
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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1 *******************************************************
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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2 *
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3 * DWWrite
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4 * Send a packet to the DriveWire server.
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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5 * Serial data format: 1-8-N-1
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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6 * 4/12/2009 by Darren Atkinson
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7 *
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8 * Entry:
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9 * X = starting address of data to send
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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10 * Y = number of bytes to send
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11 *
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12 * Exit:
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13 * X = address of last byte sent + 1
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14 * Y = 0
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15 * All others preserved
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16 *
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17
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18
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19 IFNE ARDUINO
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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20 DWWrite pshs a ; preserve registers
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21 txByte
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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22 lda ,x+ ; get byte from buffer
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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23 sta $FF52 ; put it to PIA
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24 loop@ tst $FF53 ; check status register
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25 bpl loop@ ; until CB1 is set by Arduino, continue looping
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26 tst $FF52 ; clear CB1 in status register
2773
ce3dba57003b boot_dw now uses dwinit.asm.
Boisy Pitre <boisy.pitre@nuance.com>
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27 leay -1,y ; decrement byte counter
ce3dba57003b boot_dw now uses dwinit.asm.
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28 bne txByte ; loop if more to send
ce3dba57003b boot_dw now uses dwinit.asm.
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29 puls a,pc ; restore registers and return
2772
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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30
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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31 ELSE
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32
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33 IFNE JMCPBCK
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34 DWWrite pshs d,cc ; preserve registers
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35 orcc #$50 ; mask interrupts
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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36 txByte
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37 lda ,x+
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38 sta $FF44
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39 leay -1,y ; decrement byte counter
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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40 bne txByte ; loop if more to send
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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41
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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42 puls cc,d,pc ; restore registers and return
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43
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44 ELSE
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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45 IFNE BECKER
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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46 DWWrite pshs d,cc ; preserve registers
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
drencor-xeen
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47 orcc #$50 ; mask interrupts
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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48 ; ldu #BBOUT ; point U to bit banger out register
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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49 ; lda 3,u ; read PIA 1-B control register
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50 ; anda #$f7 ; clear sound enable bit
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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51 ; sta 3,u ; disable sound output
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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52 ; fcb $8c ; skip next instruction
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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53
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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54 txByte
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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55 lda ,x+
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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56 sta $FF42
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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57 leay -1,y ; decrement byte counter
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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58 bne txByte ; loop if more to send
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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59
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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60 puls cc,d,pc ; restore registers and return
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61 ENDC
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62 ENDC
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63
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64 IFEQ BECKER+JMCPBCK+ARDUINO
2770
bfe3de781ddf Added Arduino dwread/dwwrite changes
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65 IFEQ BAUD38400+H6309
2772
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66 *******************************************************
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67 * 57600 (115200) bps using 6809 code and timimg
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68 *******************************************************
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69
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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70 DWWrite pshs dp,d,cc ; preserve registers
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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71 orcc #$50 ; mask interrupts
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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72 ldd #$04ff ; A = loop counter, B = $ff
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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73 tfr b,dp ; set direct page to $FFxx
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74 setdp $ff
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75 ldb <$ff23 ; read PIA 1-B control register
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
drencor-xeen
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76 andb #$f7 ; clear sound enable bit
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77 stb <$ff23 ; disable sound output
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78 fcb $8c ; skip next instruction
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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79
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80 txByte stb <BBOUT ; send stop bit
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
drencor-xeen
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81 ldb ,x+ ; get a byte to transmit
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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82 nop
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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83 lslb ; left rotate the byte two positions..
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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84 rolb ; ..placing a zero (start bit) in bit 1
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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85 tx0020 stb <BBOUT ; send bit (start bit, d1, d3, d5)
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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86 rorb ; move next bit into position
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87 exg a,a
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88 nop
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89 stb <BBOUT ; send bit (d0, d2, d4, d6)
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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90 rorb ; move next bit into position
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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91 leau ,u
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
drencor-xeen
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92 deca ; decrement loop counter
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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93 bne tx0020 ; loop until 7th data bit has been sent
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94
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95 stb <BBOUT ; send bit 7
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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96 ldd #$0402 ; A = loop counter, B = MARK value
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97 leay ,-y ; decrement byte counter
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98 bne txByte ; loop if more to send
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99
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100 stb <BBOUT ; leave bit banger output at MARK
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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101 puls cc,d,dp,pc ; restore registers and return
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
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102 setdp $00
2770
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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103 ELSE
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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104
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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105 IFNE BAUD38400
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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106 *******************************************************
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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107 * 38400 bps using 6809 code and timimg
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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108 *******************************************************
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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109
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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110 DWWrite pshs u,d,cc ; preserve registers
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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111 orcc #$50 ; mask interrupts
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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112 ldu #BBOUT ; point U to bit banger out register
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
113 lda 3,u ; read PIA 1-B control register
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
114 anda #$f7 ; clear sound enable bit
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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115 sta 3,u ; disable sound output
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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116 fcb $8c ; skip next instruction
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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117
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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118 txByte stb ,--u ; send stop bit
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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119 leau ,u+
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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120 lda #8 ; counter for start bit and 7 data bits
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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121 ldb ,x+ ; get a byte to transmit
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
122 lslb ; left rotate the byte two positions..
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
123 rolb ; ..placing a zero (start bit) in bit 1
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
124 tx0010 stb ,u++ ; send bit
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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125 tst ,--u
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
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126 rorb ; move next bit into position
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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127 deca ; decrement loop counter
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
128 bne tx0010 ; loop until 7th data bit has been sent
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
129 leau ,u
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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130 stb ,u ; send bit 7
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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131 lda ,u++
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
132 ldb #$02 ; value for stop bit (MARK)
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
133 leay -1,y ; decrement byte counter
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
134 bne txByte ; loop if more to send
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
135
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
136 stb ,--u ; leave bit banger output at MARK
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
137 puls cc,d,u,pc ; restore registers and return
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
138
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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139
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
140 ELSE
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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141 *******************************************************
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
142 * 57600 (115200) bps using 6309 native mode
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
143 *******************************************************
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
144
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
145 DWWrite pshs u,d,cc ; preserve registers
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
146 orcc #$50 ; mask interrupts
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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147 * ldmd #1 ; requires 6309 native mode
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
148 ldu #BBOUT+1 ; point U to bit banger out register +1
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
149 aim #$f7,2,u ; disable sound output
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
150 lda #8 ; counter for start bit and 7 data bits
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
151 fcb $8c ; skip next instruction
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
152
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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153 txByte stb -1,u ; send stop bit
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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154 tx0010 ldb ,x+ ; get a byte to transmit
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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155 lslb ; left rotate the byte two positions..
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
156 rolb ; ..placing a zero (start bit) in bit 1
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
157 bra tx0030
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
158
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
159 tx0020 bita #1 ; even or odd bit number ?
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
160 beq tx0040 ; branch if even (15 cycles)
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
161 tx0030 nop ; extra (16th) cycle
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
162 tx0040 stb -1,u ; send bit
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
163 rorb ; move next bit into position
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
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164 deca ; decrement loop counter
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
165 bne tx0020 ; loop until 7th data bit has been sent
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
166 leau ,u+
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
167 stb -1,u ; send bit 7
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
168 ldd #$0802 ; A = loop counter, B = MARK value
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
169 leay -1,y ; decrement byte counter
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
170 bne txByte ; loop if more to send
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
171
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
172 stb -1,u ; final stop bit
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
173 puls cc,d,u,pc ; restore registers and return
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
174
2772
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
drencor-xeen
parents: 2771
diff changeset
175
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
drencor-xeen
parents: 2771
diff changeset
176 ENDC
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
drencor-xeen
parents: 2771
diff changeset
177 ENDC
0a3f4d8ea6d5 Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected.
drencor-xeen
parents: 2771
diff changeset
178 ENDC
2770
bfe3de781ddf Added Arduino dwread/dwwrite changes
Boisy Pitre <boisy.pitre@nuance.com>
parents: 2725
diff changeset
179 ENDC