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1 ;--------------------------------------------------------
2 ; File Created by SDCC : free open source ANSI-C Compiler
3 ; Version 3.6.0 #9615 (Linux)
4 ;--------------------------------------------------------
5 .module pio
6 .optsdcc -mz80
7
8 ;--------------------------------------------------------
9 ; Public variables in this module
10 ;--------------------------------------------------------
11 .globl __pio_data
12 .globl __pio_control
13 .globl _pio_set_mode
14 .globl _pio_set_interrupts
15 .globl _pio_set_interrupts_mask
16 .globl _pio_read
17 .globl _pio_write
18 ;--------------------------------------------------------
19 ; special function registers
20 ;--------------------------------------------------------
21 ;--------------------------------------------------------
22 ; ram data
23 ;--------------------------------------------------------
24 .area _DATA
25 ;--------------------------------------------------------
26 ; ram data
27 ;--------------------------------------------------------
28 .area _INITIALIZED
0000 29 _pio_port:
0000 30 .ds 2
0002 31 _pio_ctrl:
0002 32 .ds 2
33 ;--------------------------------------------------------
34 ; absolute external ram data
35 ;--------------------------------------------------------
36 .area _DABS (ABS)
37 ;--------------------------------------------------------
38 ; global & static initialisations
39 ;--------------------------------------------------------
40 .area _HOME
41 .area _GSINIT
42 .area _GSFINAL
43 .area _GSINIT
44 ;--------------------------------------------------------
45 ; Home
46 ;--------------------------------------------------------
47 .area _HOME
48 .area _HOME
49 ;--------------------------------------------------------
50 ; code
51 ;--------------------------------------------------------
52 .area _CODE
53 ;pio.c:6: inline void _pio_data(int port, uint8_t data)
54 ; ---------------------------------
55 ; Function _pio_data
56 ; ---------------------------------
0000 57 __pio_data::
58 ;pio.c:8: *(pio_port + port) = data;
0000 21 02 00 [10] 59 ld hl,#2
0003 39 [11] 60 add hl,sp
0004 FD 21r00r00 [14] 61 ld iy,#_pio_port
0008 FD 7E 00 [19] 62 ld a,0 (iy)
000B 86 [ 7] 63 add a, (hl)
000C 4F [ 4] 64 ld c,a
000D FD 7E 01 [19] 65 ld a,1 (iy)
0010 23 [ 6] 66 inc hl
0011 8E [ 7] 67 adc a, (hl)
0012 47 [ 4] 68 ld b,a
0013 21 04 00 [10] 69 ld hl, #4+0
0016 39 [11] 70 add hl, sp
0017 7E [ 7] 71 ld a, (hl)
0018 02 [ 7] 72 ld (bc),a
0019 C9 [10] 73 ret
74 ;pio.c:11: inline void _pio_control(int port, uint8_t cmd)
75 ; ---------------------------------
76 ; Function _pio_control
77 ; ---------------------------------
001A 78 __pio_control::
79 ;pio.c:13: *(pio_ctrl + port) = cmd;
001A 21 02 00 [10] 80 ld hl,#2
001D 39 [11] 81 add hl,sp
001E FD 21r02r00 [14] 82 ld iy,#_pio_ctrl
0022 FD 7E 00 [19] 83 ld a,0 (iy)
0025 86 [ 7] 84 add a, (hl)
0026 4F [ 4] 85 ld c,a
0027 FD 7E 01 [19] 86 ld a,1 (iy)
002A 23 [ 6] 87 inc hl
002B 8E [ 7] 88 adc a, (hl)
002C 47 [ 4] 89 ld b,a
002D 21 04 00 [10] 90 ld hl, #4+0
0030 39 [11] 91 add hl, sp
0031 7E [ 7] 92 ld a, (hl)
0032 02 [ 7] 93 ld (bc),a
0033 C9 [10] 94 ret
95 ;pio.c:16: void pio_set_mode(int port, int mode, uint8_t io)
96 ; ---------------------------------
97 ; Function pio_set_mode
98 ; ---------------------------------
0034 99 _pio_set_mode::
100 ;pio.c:19: _pio_control(port, ((mode << 6) | 0x0F));
0034 21 04 00 [10] 101 ld hl, #4+0
0037 39 [11] 102 add hl, sp
0038 7E [ 7] 103 ld a, (hl)
0039 0F [ 4] 104 rrca
003A 0F [ 4] 105 rrca
003B E6 C0 [ 7] 106 and a,#0xc0
003D F6 0F [ 7] 107 or a, #0x0f
003F 4F [ 4] 108 ld c,a
0040 D1 [10] 109 pop de
0041 E1 [10] 110 pop hl
0042 E5 [11] 111 push hl
0043 D5 [11] 112 push de
113 ;pio.c:13: *(pio_ctrl + port) = cmd;
0044 FD 2Ar02r00 [20] 114 ld iy,(_pio_ctrl)
0048 5D [ 4] 115 ld e, l
0049 54 [ 4] 116 ld d, h
004A FD 19 [15] 117 add iy, de
004C FD 71 00 [19] 118 ld 0 (iy), c
119 ;pio.c:23: if (mode == PIO_MODE_BIT_IO) {
004F FD 21 04 00 [14] 120 ld iy,#4
0053 FD 39 [15] 121 add iy,sp
0055 FD 7E 00 [19] 122 ld a,0 (iy)
0058 D6 03 [ 7] 123 sub a, #0x03
005A C0 [11] 124 ret NZ
005B FD 7E 01 [19] 125 ld a,1 (iy)
005E B7 [ 4] 126 or a, a
005F C0 [11] 127 ret NZ
128 ;pio.c:24: _pio_control(port, io);
0060 FD 21 06 00 [14] 129 ld iy,#6
0064 FD 39 [15] 130 add iy,sp
0066 FD 4E 00 [19] 131 ld c,0 (iy)
132 ;pio.c:13: *(pio_ctrl + port) = cmd;
0069 ED 5Br02r00 [20] 133 ld de,(_pio_ctrl)
006D 19 [11] 134 add hl,de
006E 71 [ 7] 135 ld (hl),c
136 ;pio.c:24: _pio_control(port, io);
006F C9 [10] 137 ret
138 ;pio.c:28: void pio_set_interrupts(int port, int control)
139 ; ---------------------------------
140 ; Function pio_set_interrupts
141 ; ---------------------------------
0070 142 _pio_set_interrupts::
143 ;pio.c:31: _pio_control(port, (control | 0x07));
0070 21 04 00 [10] 144 ld hl, #4+0
0073 39 [11] 145 add hl, sp
0074 7E [ 7] 146 ld a, (hl)
0075 F6 07 [ 7] 147 or a, #0x07
0077 4F [ 4] 148 ld c,a
0078 D1 [10] 149 pop de
0079 E1 [10] 150 pop hl
007A E5 [11] 151 push hl
007B D5 [11] 152 push de
153 ;pio.c:13: *(pio_ctrl + port) = cmd;
007C ED 5Br02r00 [20] 154 ld de,(_pio_ctrl)
0080 19 [11] 155 add hl,de
0081 71 [ 7] 156 ld (hl),c
157 ;pio.c:31: _pio_control(port, (control | 0x07));
0082 C9 [10] 158 ret
159 ;pio.c:34: void pio_set_interrupts_mask(int port, int control, uint8_t mask)
160 ; ---------------------------------
161 ; Function pio_set_interrupts_mask
162 ; ---------------------------------
0083 163 _pio_set_interrupts_mask::
164 ;pio.c:38: _pio_control(port, (control | 0x17));
0083 21 04 00 [10] 165 ld hl, #4+0
0086 39 [11] 166 add hl, sp
0087 7E [ 7] 167 ld a, (hl)
0088 F6 17 [ 7] 168 or a, #0x17
008A 4F [ 4] 169 ld c,a
008B D1 [10] 170 pop de
008C E1 [10] 171 pop hl
008D E5 [11] 172 push hl
008E D5 [11] 173 push de
174 ;pio.c:13: *(pio_ctrl + port) = cmd;
008F FD 2Ar02r00 [20] 175 ld iy,(_pio_ctrl)
0093 5D [ 4] 176 ld e, l
0094 54 [ 4] 177 ld d, h
0095 FD 19 [15] 178 add iy, de
0097 FD 71 00 [19] 179 ld 0 (iy), c
180 ;pio.c:39: _pio_control(port, mask);
009A FD 21 06 00 [14] 181 ld iy,#6
009E FD 39 [15] 182 add iy,sp
00A0 FD 4E 00 [19] 183 ld c,0 (iy)
184 ;pio.c:13: *(pio_ctrl + port) = cmd;
00A3 ED 5Br02r00 [20] 185 ld de,(_pio_ctrl)
00A7 19 [11] 186 add hl,de
00A8 71 [ 7] 187 ld (hl),c
188 ;pio.c:39: _pio_control(port, mask);
00A9 C9 [10] 189 ret
190 ;pio.c:42: uint8_t pio_read(int port)
191 ; ---------------------------------
192 ; Function pio_read
193 ; ---------------------------------
00AA 194 _pio_read::
195 ;pio.c:44: return *(pio_port + port);
00AA 21 02 00 [10] 196 ld hl,#2
00AD 39 [11] 197 add hl,sp
00AE FD 21r00r00 [14] 198 ld iy,#_pio_port
00B2 FD 7E 00 [19] 199 ld a,0 (iy)
00B5 86 [ 7] 200 add a, (hl)
00B6 4F [ 4] 201 ld c,a
00B7 FD 7E 01 [19] 202 ld a,1 (iy)
00BA 23 [ 6] 203 inc hl
00BB 8E [ 7] 204 adc a, (hl)
00BC 47 [ 4] 205 ld b,a
00BD 0A [ 7] 206 ld a,(bc)
00BE 6F [ 4] 207 ld l,a
00BF C9 [10] 208 ret
209 ;pio.c:47: void pio_write(int port, uint8_t data)
210 ; ---------------------------------
211 ; Function pio_write
212 ; ---------------------------------
00C0 213 _pio_write::
214 ;pio.c:49: _pio_data(port, data);
00C0 21 04 00 [10] 215 ld hl, #4+0
00C3 39 [11] 216 add hl, sp
00C4 4E [ 7] 217 ld c, (hl)
00C5 D1 [10] 218 pop de
00C6 E1 [10] 219 pop hl
00C7 E5 [11] 220 push hl
00C8 D5 [11] 221 push de
222 ;pio.c:8: *(pio_port + port) = data;
00C9 ED 5Br00r00 [20] 223 ld de,(_pio_port)
00CD 19 [11] 224 add hl,de
00CE 71 [ 7] 225 ld (hl),c
226 ;pio.c:49: _pio_data(port, data);
00CF C9 [10] 227 ret
228 .area _CODE
229 .area _INITIALIZER
0000 230 __xinit__pio_port:
0000 00 42 231 .dw #0x4200
0002 232 __xinit__pio_ctrl:
0002 02 42 233 .dw #0x4202
234 .area _CABS (ABS)
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