summaryrefslogtreecommitdiffstats
path: root/sw/z80/drivers
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--sw/z80/drivers/build/ctc.asm (renamed from sw/z80_tests/usart/build/ctc.asm)0
-rw-r--r--sw/z80/drivers/build/ctc.lst (renamed from sw/z80_tests/usart/build/ctc.lst)0
-rw-r--r--sw/z80/drivers/build/ctc.rel (renamed from sw/z80_tests/usart/build/ctc.rel)0
-rw-r--r--sw/z80/drivers/build/ctc.sym (renamed from sw/z80_tests/usart/build/ctc.sym)0
-rw-r--r--sw/z80/drivers/build/pio.asm (renamed from sw/z80_tests/usart/build/pio.asm)40
-rw-r--r--sw/z80/drivers/build/pio.lst234
-rw-r--r--sw/z80/drivers/build/pio.rel (renamed from sw/z80_tests/usart/build/pio.rel)18
-rw-r--r--sw/z80/drivers/build/pio.sym (renamed from sw/z80_tests/usart/build/pio.sym)5
-rw-r--r--sw/z80/drivers/build/usart.asm (renamed from sw/z80_tests/usart/build/usart.asm)29
-rw-r--r--sw/z80/drivers/build/usart.lst (renamed from sw/z80_tests/usart/build/usart.lst)85
-rw-r--r--sw/z80/drivers/build/usart.rel (renamed from sw/z80_tests/usart/build/usart.rel)26
-rw-r--r--sw/z80/drivers/build/usart.sym (renamed from sw/z80_tests/usart/build/usart.sym)2
-rw-r--r--sw/z80/drivers/ctc.c (renamed from sw/z80/kernel/drivers/ctc.c)2
-rw-r--r--sw/z80/drivers/include/ctc.h (renamed from sw/z80/kernel/include/drivers/ctc.h)0
-rw-r--r--sw/z80/drivers/include/pio.h (renamed from sw/z80/kernel/include/drivers/pio.h)7
-rw-r--r--sw/z80/drivers/include/usart.h (renamed from sw/z80/kernel/include/drivers/usart.h)9
-rw-r--r--sw/z80/drivers/makefile22
-rw-r--r--sw/z80/drivers/pio.c (renamed from sw/z80/kernel/drivers/pio.c)14
-rw-r--r--sw/z80/drivers/usart.c (renamed from sw/z80/kernel/drivers/usart.c)2
19 files changed, 410 insertions, 85 deletions
diff --git a/sw/z80_tests/usart/build/ctc.asm b/sw/z80/drivers/build/ctc.asm
index 838756a..838756a 100644
--- a/sw/z80_tests/usart/build/ctc.asm
+++ b/sw/z80/drivers/build/ctc.asm
diff --git a/sw/z80_tests/usart/build/ctc.lst b/sw/z80/drivers/build/ctc.lst
index e758d8a..e758d8a 100644
--- a/sw/z80_tests/usart/build/ctc.lst
+++ b/sw/z80/drivers/build/ctc.lst
diff --git a/sw/z80_tests/usart/build/ctc.rel b/sw/z80/drivers/build/ctc.rel
index 50a8b42..50a8b42 100644
--- a/sw/z80_tests/usart/build/ctc.rel
+++ b/sw/z80/drivers/build/ctc.rel
diff --git a/sw/z80_tests/usart/build/ctc.sym b/sw/z80/drivers/build/ctc.sym
index 82ca00e..82ca00e 100644
--- a/sw/z80_tests/usart/build/ctc.sym
+++ b/sw/z80/drivers/build/ctc.sym
diff --git a/sw/z80_tests/usart/build/pio.asm b/sw/z80/drivers/build/pio.asm
index ee1fcc6..3045492 100644
--- a/sw/z80_tests/usart/build/pio.asm
+++ b/sw/z80/drivers/build/pio.asm
@@ -13,6 +13,8 @@
.globl _pio_set_mode
.globl _pio_set_interrupts
.globl _pio_set_interrupts_mask
+ .globl _pio_read
+ .globl _pio_write
;--------------------------------------------------------
; special function registers
;--------------------------------------------------------
@@ -185,6 +187,44 @@ _pio_set_interrupts_mask::
ld (hl),c
;pio.c:39: _pio_control(port, mask);
ret
+;pio.c:42: uint8_t pio_read(int port)
+; ---------------------------------
+; Function pio_read
+; ---------------------------------
+_pio_read::
+;pio.c:44: return *(pio_port + port);
+ ld hl,#2
+ add hl,sp
+ ld iy,#_pio_port
+ ld a,0 (iy)
+ add a, (hl)
+ ld c,a
+ ld a,1 (iy)
+ inc hl
+ adc a, (hl)
+ ld b,a
+ ld a,(bc)
+ ld l,a
+ ret
+;pio.c:47: void pio_write(int port, uint8_t data)
+; ---------------------------------
+; Function pio_write
+; ---------------------------------
+_pio_write::
+;pio.c:49: _pio_data(port, data);
+ ld hl, #4+0
+ add hl, sp
+ ld c, (hl)
+ pop de
+ pop hl
+ push hl
+ push de
+;pio.c:8: *(pio_port + port) = data;
+ ld de,(_pio_port)
+ add hl,de
+ ld (hl),c
+;pio.c:49: _pio_data(port, data);
+ ret
.area _CODE
.area _INITIALIZER
__xinit__pio_port:
diff --git a/sw/z80/drivers/build/pio.lst b/sw/z80/drivers/build/pio.lst
new file mode 100644
index 0000000..0b83616
--- /dev/null
+++ b/sw/z80/drivers/build/pio.lst
@@ -0,0 +1,234 @@
+ 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)
diff --git a/sw/z80_tests/usart/build/pio.rel b/sw/z80/drivers/build/pio.rel
index 90210a9..d9b1ac3 100644
--- a/sw/z80_tests/usart/build/pio.rel
+++ b/sw/z80/drivers/build/pio.rel
@@ -1,13 +1,15 @@
XL2
-H 9 areas 6 global symbols
+H 9 areas 8 global symbols
M pio
O -mz80
S .__.ABS. Def0000
-A _CODE size AA flags 0 addr 0
+A _CODE size D0 flags 0 addr 0
S _pio_set_interrupts Def0070
S _pio_set_mode Def0034
S _pio_set_interrupts_mask Def0083
+S _pio_read Def00AA
S __pio_control Def001A
+S _pio_write Def00C0
S __pio_data Def0000
A _DATA size 0 flags 0 addr 0
A _INITIALIZED size 4 flags 0 addr 0
@@ -63,6 +65,18 @@ T 91 00 02 00 5D 54 FD 19 FD 71 00 FD 21 06 00 FD
R 00 00 00 00 00 02 02 00
T 9F 00 39 FD 4E 00 ED 5B 02 00 19 71 C9
R 00 00 00 00 00 08 02 00
+T AA 00
+R 00 00 00 00
+T AA 00 21 02 00 39 FD 21 00 00 FD 7E 00 86 4F FD
+R 00 00 00 00 00 08 02 00
+T B8 00 7E 01 23 8E 47 0A 6F C9
+R 00 00 00 00
+T C0 00
+R 00 00 00 00
+T C0 00 21 04 00 39 4E D1 E1 E5 D5 ED 5B 00 00 19
+R 00 00 00 00 00 0D 02 00
+T CE 00 71 C9
+R 00 00 00 00
T 00 00
R 00 00 07 00
T 00 00 00 42
diff --git a/sw/z80_tests/usart/build/pio.sym b/sw/z80/drivers/build/pio.sym
index 3cf582f..52f787c 100644
--- a/sw/z80_tests/usart/build/pio.sym
+++ b/sw/z80/drivers/build/pio.sym
@@ -13,17 +13,18 @@ Symbol Table
7 __xinit__pio_port 0000 R
2 _pio_ctrl 0002 R
2 _pio_port 0000 R
+ 0 _pio_read 00AA GR
0 _pio_set_interrupts 0070 GR
0 _pio_set_interrupts_mask 0083 GR
0 _pio_set_mode 0034 GR
-
+ 0 _pio_write 00C0 GR
ASxxxx Assembler V02.00 + NoICE + SDCC mods (Zilog Z80 / Hitachi HD64180), page 2.
Hexadecimal [16-Bits]
Area Table
- 0 _CODE size AA flags 0
+ 0 _CODE size D0 flags 0
1 _DATA size 0 flags 0
2 _INITIALIZED size 4 flags 0
3 _DABS size 0 flags 8
diff --git a/sw/z80_tests/usart/build/usart.asm b/sw/z80/drivers/build/usart.asm
index 58d6fdf..fb65d62 100644
--- a/sw/z80_tests/usart/build/usart.asm
+++ b/sw/z80/drivers/build/usart.asm
@@ -366,14 +366,14 @@ _usart_read::
ld sp,hl
;usart.c:77: uint8_t *bp = buffer;
ld a,4 (ix)
- ld -6 (ix),a
+ ld -4 (ix),a
ld a,5 (ix)
- ld -5 (ix),a
+ ld -3 (ix),a
;usart.c:80: while (count--) {
ld c,6 (ix)
ld b,7 (ix)
- ld -4 (ix),#0x00
- ld -3 (ix),#0x00
+ ld hl,#0x0000
+ ex (sp), hl
00105$:
ld e, c
ld d, b
@@ -384,12 +384,12 @@ _usart_read::
;usart.c:81: *(bp++) = _usart->buffer;
ld hl,(__usart)
ld e,(hl)
- pop hl
- push hl
+ ld l,-4 (ix)
+ ld h,-3 (ix)
ld (hl),e
- inc -6 (ix)
+ inc -4 (ix)
jr NZ,00123$
- inc -5 (ix)
+ inc -3 (ix)
00123$:
ld de,(__usart)
;usart.c:83: if (_usart->LSR.framing_error || _usart->LSR.parity_error) {
@@ -414,23 +414,22 @@ _usart_read::
jr Z,00102$
00101$:
;usart.c:84: bp--; // delete last byte (?)
- pop hl
- push hl
+ ld l,-4 (ix)
+ ld h,-3 (ix)
dec hl
- ex (sp), hl
+ ld -4 (ix),l
+ ld -3 (ix),h
jr 00105$
00102$:
;usart.c:86: read_count++;
- inc -4 (ix)
+ inc -6 (ix)
jr NZ,00105$
- inc -3 (ix)
+ inc -5 (ix)
jr 00105$
00107$:
;usart.c:90: return read_count;
- pop bc
pop hl
push hl
- push bc
ld sp, ix
pop ix
ret
diff --git a/sw/z80_tests/usart/build/usart.lst b/sw/z80/drivers/build/usart.lst
index 7706cff..65365fe 100644
--- a/sw/z80_tests/usart/build/usart.lst
+++ b/sw/z80/drivers/build/usart.lst
@@ -366,30 +366,30 @@
01A4 F9 [ 6] 366 ld sp,hl
367 ;usart.c:77: uint8_t *bp = buffer;
01A5 DD 7E 04 [19] 368 ld a,4 (ix)
- 01A8 DD 77 FA [19] 369 ld -6 (ix),a
+ 01A8 DD 77 FC [19] 369 ld -4 (ix),a
01AB DD 7E 05 [19] 370 ld a,5 (ix)
- 01AE DD 77 FB [19] 371 ld -5 (ix),a
+ 01AE DD 77 FD [19] 371 ld -3 (ix),a
372 ;usart.c:80: while (count--) {
01B1 DD 4E 06 [19] 373 ld c,6 (ix)
01B4 DD 46 07 [19] 374 ld b,7 (ix)
- 01B7 DD 36 FC 00 [19] 375 ld -4 (ix),#0x00
- 01BB DD 36 FD 00 [19] 376 ld -3 (ix),#0x00
- 01BF 377 00105$:
- 01BF 59 [ 4] 378 ld e, c
- 01C0 50 [ 4] 379 ld d, b
- 01C1 0B [ 6] 380 dec bc
- 01C2 7A [ 4] 381 ld a,d
- 01C3 B3 [ 4] 382 or a,e
- 01C4 28 48 [12] 383 jr Z,00107$
+ 01B7 21 00 00 [10] 375 ld hl,#0x0000
+ 01BA E3 [19] 376 ex (sp), hl
+ 01BB 377 00105$:
+ 01BB 59 [ 4] 378 ld e, c
+ 01BC 50 [ 4] 379 ld d, b
+ 01BD 0B [ 6] 380 dec bc
+ 01BE 7A [ 4] 381 ld a,d
+ 01BF B3 [ 4] 382 or a,e
+ 01C0 28 55 [12] 383 jr Z,00107$
384 ;usart.c:81: *(bp++) = _usart->buffer;
- 01C6 2Ar00r00 [16] 385 ld hl,(__usart)
- 01C9 5E [ 7] 386 ld e,(hl)
- 01CA E1 [10] 387 pop hl
- 01CB E5 [11] 388 push hl
+ 01C2 2Ar00r00 [16] 385 ld hl,(__usart)
+ 01C5 5E [ 7] 386 ld e,(hl)
+ 01C6 DD 6E FC [19] 387 ld l,-4 (ix)
+ 01C9 DD 66 FD [19] 388 ld h,-3 (ix)
01CC 73 [ 7] 389 ld (hl),e
- 01CD DD 34 FA [23] 390 inc -6 (ix)
+ 01CD DD 34 FC [23] 390 inc -4 (ix)
01D0 20 03 [12] 391 jr NZ,00123$
- 01D2 DD 34 FB [23] 392 inc -5 (ix)
+ 01D2 DD 34 FD [23] 392 inc -3 (ix)
01D5 393 00123$:
01D5 ED 5Br00r00 [20] 394 ld de,(__usart)
395 ;usart.c:83: if (_usart->LSR.framing_error || _usart->LSR.parity_error) {
@@ -411,31 +411,30 @@
01F8 0F [ 4] 411 rrca
01F9 0F [ 4] 412 rrca
01FA E6 01 [ 7] 413 and a,#0x01
- 01FC 28 06 [12] 414 jr Z,00102$
+ 01FC 28 0F [12] 414 jr Z,00102$
01FE 415 00101$:
416 ;usart.c:84: bp--; // delete last byte (?)
- 01FE E1 [10] 417 pop hl
- 01FF E5 [11] 418 push hl
- 0200 2B [ 6] 419 dec hl
- 0201 E3 [19] 420 ex (sp), hl
- 0202 18 BB [12] 421 jr 00105$
- 0204 422 00102$:
- 423 ;usart.c:86: read_count++;
- 0204 DD 34 FC [23] 424 inc -4 (ix)
- 0207 20 B6 [12] 425 jr NZ,00105$
- 0209 DD 34 FD [23] 426 inc -3 (ix)
- 020C 18 B1 [12] 427 jr 00105$
- 020E 428 00107$:
- 429 ;usart.c:90: return read_count;
- 020E C1 [10] 430 pop bc
- 020F E1 [10] 431 pop hl
- 0210 E5 [11] 432 push hl
- 0211 C5 [11] 433 push bc
- 0212 DD F9 [10] 434 ld sp, ix
- 0214 DD E1 [14] 435 pop ix
- 0216 C9 [10] 436 ret
- 437 .area _CODE
- 438 .area _INITIALIZER
- 0000 439 __xinit___usart:
- 0000 00 40 440 .dw #0x4000
- 441 .area _CABS (ABS)
+ 01FE DD 6E FC [19] 417 ld l,-4 (ix)
+ 0201 DD 66 FD [19] 418 ld h,-3 (ix)
+ 0204 2B [ 6] 419 dec hl
+ 0205 DD 75 FC [19] 420 ld -4 (ix),l
+ 0208 DD 74 FD [19] 421 ld -3 (ix),h
+ 020B 18 AE [12] 422 jr 00105$
+ 020D 423 00102$:
+ 424 ;usart.c:86: read_count++;
+ 020D DD 34 FA [23] 425 inc -6 (ix)
+ 0210 20 A9 [12] 426 jr NZ,00105$
+ 0212 DD 34 FB [23] 427 inc -5 (ix)
+ 0215 18 A4 [12] 428 jr 00105$
+ 0217 429 00107$:
+ 430 ;usart.c:90: return read_count;
+ 0217 E1 [10] 431 pop hl
+ 0218 E5 [11] 432 push hl
+ 0219 DD F9 [10] 433 ld sp, ix
+ 021B DD E1 [14] 434 pop ix
+ 021D C9 [10] 435 ret
+ 436 .area _CODE
+ 437 .area _INITIALIZER
+ 0000 438 __xinit___usart:
+ 0000 00 40 439 .dw #0x4000
+ 440 .area _CABS (ABS)
diff --git a/sw/z80_tests/usart/build/usart.rel b/sw/z80/drivers/build/usart.rel
index 480c037..29ad600 100644
--- a/sw/z80_tests/usart/build/usart.rel
+++ b/sw/z80/drivers/build/usart.rel
@@ -3,7 +3,7 @@ H 9 areas B global symbols
M usart
O -mz80
S .__.ABS. Def0000
-A _CODE size 217 flags 0 addr 0
+A _CODE size 21E flags 0 addr 0
S _usart_read Def0198
S _usart_set_autoflow Def00CE
S _usart_word_length Def00B5
@@ -146,15 +146,15 @@ T 98 01
R 00 00 00 00
T 98 01 DD E5 DD 21 00 00 DD 39 21 FA FF 39 F9 DD
R 00 00 00 00
-T A6 01 7E 04 DD 77 FA DD 7E 05 DD 77 FB DD 4E 06
+T A6 01 7E 04 DD 77 FC DD 7E 05 DD 77 FD DD 4E 06
R 00 00 00 00
-T B4 01 DD 46 07 DD 36 FC 00 DD 36 FD 00
+T B4 01 DD 46 07 21 00 00 E3
R 00 00 00 00
-T BF 01
+T BB 01
R 00 00 00 00
-T BF 01 59 50 0B 7A B3 28 48 2A 00 00 5E E1 E5 73
+T BB 01 59 50 0B 7A B3 28 55 2A 00 00 5E DD 6E FC
R 00 00 00 00 00 0A 02 00
-T CD 01 DD 34 FA 20 03 DD 34 FB
+T C9 01 DD 66 FD 73 DD 34 FC 20 03 DD 34 FD
R 00 00 00 00
T D5 01
R 00 00 00 00
@@ -162,19 +162,21 @@ T D5 01 ED 5B 00 00 21 0D 00 19 DD 75 FE DD 74 FF
R 00 00 00 00 00 04 02 00
T E3 01 DD 6E FE DD 66 FF 7E 0F 0F 0F E6 01 20 0D
R 00 00 00 00
-T F1 01 DD 6E FE DD 66 FF 7E 0F 0F E6 01 28 06
+T F1 01 DD 6E FE DD 66 FF 7E 0F 0F E6 01 28 0F
R 00 00 00 00
T FE 01
R 00 00 00 00
-T FE 01 E1 E5 2B E3 18 BB
+T FE 01 DD 6E FC DD 66 FD 2B DD 75 FC DD 74 FD 18
R 00 00 00 00
-T 04 02
+T 0C 02 AE
R 00 00 00 00
-T 04 02 DD 34 FC 20 B6 DD 34 FD 18 B1
+T 0D 02
R 00 00 00 00
-T 0E 02
+T 0D 02 DD 34 FA 20 A9 DD 34 FB 18 A4
R 00 00 00 00
-T 0E 02 C1 E1 E5 C5 DD F9 DD E1 C9
+T 17 02
+R 00 00 00 00
+T 17 02 E1 E5 DD F9 DD E1 C9
R 00 00 00 00
T 00 00
R 00 00 07 00
diff --git a/sw/z80_tests/usart/build/usart.sym b/sw/z80/drivers/build/usart.sym
index a6e3c38..71004e3 100644
--- a/sw/z80_tests/usart/build/usart.sym
+++ b/sw/z80/drivers/build/usart.sym
@@ -26,7 +26,7 @@ Hexadecimal [16-Bits]
Area Table
- 0 _CODE size 217 flags 0
+ 0 _CODE size 21E flags 0
1 _DATA size 0 flags 0
2 _INITIALIZED size 2 flags 0
3 _DABS size 0 flags 8
diff --git a/sw/z80/kernel/drivers/ctc.c b/sw/z80/drivers/ctc.c
index 841202a..5ac4254 100644
--- a/sw/z80/kernel/drivers/ctc.c
+++ b/sw/z80/drivers/ctc.c
@@ -1,4 +1,4 @@
-#include "drivers/ctc.h"
+#include "ctc.h"
void ctc_control()
{
diff --git a/sw/z80/kernel/include/drivers/ctc.h b/sw/z80/drivers/include/ctc.h
index 80e8b4b..80e8b4b 100644
--- a/sw/z80/kernel/include/drivers/ctc.h
+++ b/sw/z80/drivers/include/ctc.h
diff --git a/sw/z80/kernel/include/drivers/pio.h b/sw/z80/drivers/include/pio.h
index 0df2ed0..e91029c 100644
--- a/sw/z80/kernel/include/drivers/pio.h
+++ b/sw/z80/drivers/include/pio.h
@@ -1,8 +1,8 @@
#ifndef __PIO_H__
#define __PIO_H__
-#include "devices.h"
-#include "types.h"
+#include "addresses.h"
+#include <stdint.h>
#define PIO_A 0
#define PIO_B 1
@@ -20,6 +20,7 @@
inline void _pio_data(int port, uint8_t data);
inline void _pio_control(int port, uint8_t cmd);
+/* the last argument is needed only for IO mode */
void pio_set_mode(int port, int mode, uint8_t io);
void pio_set_interrupts(int port, int control);
@@ -34,4 +35,4 @@ inline void pio_write_pin(int port, uint8_t pin);
// TODO: implement mode (in/out/both) and interrupt vector
-#endif // __PIO_H__
+#endif /* __PIO_H__ */
diff --git a/sw/z80/kernel/include/drivers/usart.h b/sw/z80/drivers/include/usart.h
index b85ee3e..bb06aab 100644
--- a/sw/z80/kernel/include/drivers/usart.h
+++ b/sw/z80/drivers/include/usart.h
@@ -1,10 +1,10 @@
#ifndef __USART_H__
#define __USART_H__
-#include "types.h"
-#include "devices.h"
+#include "addresses.h"
-#include "string.h"
+#include <stdint.h>
+#include <string.h>
// baudrate clock divisors
// values from TL16C550C datasheet (table 9 for 1.8432 MHz crystal)
@@ -48,6 +48,9 @@
#define USART_AUTOFLOW_CTS 2
#define USART_AUTOFLOW_OFF 0
+typedef unsigned int uint;
+typedef uint8_t register_t;
+
/* stuctures for usart registers */
struct IER
{
diff --git a/sw/z80/drivers/makefile b/sw/z80/drivers/makefile
new file mode 100644
index 0000000..5d6d8ee
--- /dev/null
+++ b/sw/z80/drivers/makefile
@@ -0,0 +1,22 @@
+# Drivers library
+
+LIB := build/drivers.a
+SOURCES := $(wildcard *.c)
+OBJECTS := $(patsubst %.c,build/%.rel,$(SOURCES))
+
+CC := sdcc
+AR := sdar
+CFLAGS := -mz80 -Iinclude -I../arch -DDEBUG
+
+.PHONY: dirs clean
+$(LIB): $(OBJECTS)
+ $(AR) rcs $@ $(OBJECTS)
+
+$(OBJECTS): build/%.rel: %.c $(SOURCES) dirs
+ $(CC) $(CFLAGS) -c $< -o $@
+
+dirs:
+ mkdir -p build
+
+clean:
+ - rm -rd build/*
diff --git a/sw/z80/kernel/drivers/pio.c b/sw/z80/drivers/pio.c
index 4321fb8..bdbe1c3 100644
--- a/sw/z80/kernel/drivers/pio.c
+++ b/sw/z80/drivers/pio.c
@@ -1,4 +1,4 @@
-#include "drivers/pio.h"
+#include "pio.h"
static uint8_t *pio_port = (uint8_t *) ADDR_DEV_PIO;
static uint8_t *pio_ctrl = (uint8_t *) (ADDR_DEV_PIO + 2);
@@ -34,7 +34,17 @@ void pio_set_interrupts(int port, int control)
void pio_set_interrupts_mask(int port, int control, uint8_t mask)
{
// 0x17 is a control sequence to set interrupts
- // and to interpret the next byte as a mask
+ // AND interpret the next byte as a bitmask
_pio_control(port, (control | 0x17));
_pio_control(port, mask);
}
+
+uint8_t pio_read(int port)
+{
+ return *(pio_port + port);
+}
+
+void pio_write(int port, uint8_t data)
+{
+ _pio_data(port, data);
+}
diff --git a/sw/z80/kernel/drivers/usart.c b/sw/z80/drivers/usart.c
index c54fe37..9ec6dbd 100644
--- a/sw/z80/kernel/drivers/usart.c
+++ b/sw/z80/drivers/usart.c
@@ -1,4 +1,4 @@
-#include "drivers/usart.h"
+#include "usart.h"
static struct _usart_device *_usart = (struct _usart_device *) ADDR_DEV_USART;
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-24 18:44:51 +0100