diff options
Diffstat (limited to 'firmware/target/coldfire/iaudio')
-rw-r--r-- | firmware/target/coldfire/iaudio/m5/lcd-as-m5.S | 189 | ||||
-rw-r--r-- | firmware/target/coldfire/iaudio/m5/lcd-m5.c | 12 |
2 files changed, 147 insertions, 54 deletions
diff --git a/firmware/target/coldfire/iaudio/m5/lcd-as-m5.S b/firmware/target/coldfire/iaudio/m5/lcd-as-m5.S index 7e89815ec8..0ec98e4589 100644 --- a/firmware/target/coldfire/iaudio/m5/lcd-as-m5.S +++ b/firmware/target/coldfire/iaudio/m5/lcd-as-m5.S | |||
@@ -88,57 +88,146 @@ lcd_write_data: | |||
88 | .type lcd_grey_data,@function | 88 | .type lcd_grey_data,@function |
89 | 89 | ||
90 | lcd_grey_data: | 90 | lcd_grey_data: |
91 | lea.l (-4*4, %sp), %sp | 91 | lea.l (-9*4, %sp), %sp |
92 | movem.l %d2-%d5, (%sp) | 92 | movem.l %d2-%d5/%a2-%a6, (%sp) /* free some registers */ |
93 | movem.l (4*4+4, %sp), %a0-%a1 /* Data pointer */ | 93 | movem.l (9*4+4, %sp), %a0-%a2 /* values, phases, length */ |
94 | move.l %a1, %d0 /* Length */ | 94 | lea.l (%a1, %a2.l*4), %a2 /* end address */ |
95 | lea 0xf0008002, %a1 /* LCD data port */ | 95 | lea 0xf0008002, %a3 /* LCD data port */ |
96 | move.l #0xff00ff00, %d2 /* mask for splitting value/phase pairs */ | 96 | |
97 | 97 | moveq.l #15, %d3 | |
98 | .greyloop: | 98 | add.l %a1, %d3 |
99 | movem.l (%a0), %d4-%d5 /* fetch 4 pixel phase/value pairs at once */ | 99 | and.l #0xfffffff0, %d3 /* first line bound */ |
100 | /* %d4 = p0v0p1v1, %d5 = p2v2p3v3 */ | 100 | move.l %a2, %d1 |
101 | move.l %d2, %d3 /* copy mask */ | 101 | and.l #0xfffffff0, %d1 /* last line bound */ |
102 | and.l %d4, %d3 /* %d3 = p0--p1-- */ | 102 | cmp.l %d3, %d1 |
103 | eor.l %d3, %d4 /* %d4 = --v0--v1 */ | 103 | bls.w .g_tloop /* no lines to copy - jump to tail loop */ |
104 | lsr.l #8, %d3 /* %d3 = --p0--p1 */ | 104 | cmp.l %a1, %d0 |
105 | 105 | bls.s .g_lloop /* no head blocks - jump to line loop */ | |
106 | bclr.l #23, %d3 /* Z = !(p0 & 0x80); p0 &= ~0x80; */ | 106 | |
107 | seq.b %d1 /* %d1 = ........................00000000 */ | 107 | .g_hloop: |
108 | lsl.l #2, %d1 /* %d1 = ......................00000000.. */ | 108 | move.l (%a1), %d2 /* fetch 4 pixel phases */ |
109 | bclr.l #7, %d3 /* Z = !(p1 & 0x80); p1 &= ~0x80; */ | 109 | |
110 | seq.b %d1 /* %d1 = ......................0011111111 */ | 110 | bclr.l #31, %d2 /* Z = !(p0 & 0x80); p0 &= ~0x80; */ |
111 | lsl.l #2, %d1 /* %d1 = ....................0011111111.. */ | 111 | seq.b %d0 /* %d0 = ........................00000000 */ |
112 | lsl.l #2, %d0 /* %d0 = ......................00000000.. */ | ||
113 | bclr.l #23, %d2 /* Z = !(p1 & 0x80); p1 &= ~0x80; */ | ||
114 | seq.b %d0 /* %d0 = ......................0011111111 */ | ||
115 | lsl.l #2, %d0 /* %d0 = ....................0011111111.. */ | ||
116 | bclr.l #15, %d2 /* Z = !(p2 & 0x80); p2 &= ~0x80; */ | ||
117 | seq.b %d0 /* %d0 = ....................001122222222 */ | ||
118 | lsl.l #2, %d0 /* %d0 = ..................001122222222.. */ | ||
119 | bclr.l #7, %d2 /* Z = !(p3 & 0x80); p3 &= ~0x80; */ | ||
120 | seq.b %d0 /* %d0 = ..................00112233333333 */ | ||
121 | lsr.l #6, %d0 /* %d0 = ........................00112233 */ | ||
122 | move.w %d0, (%a3) /* write pixel block */ | ||
123 | |||
124 | add.l (%a0)+, %d2 /* add 4 pixel values to the phases */ | ||
125 | move.l %d2, (%a1)+ /* store new phases, advance pointer */ | ||
126 | |||
127 | cmp.l %a1, %d3 /* go up to first line bound */ | ||
128 | bhi.s .g_hloop | ||
129 | |||
130 | .g_lloop: | ||
131 | movem.l (%a1), %d2-%d5 | ||
132 | |||
133 | bclr.l #31, %d2 | ||
134 | seq.b %d0 | ||
135 | lsl.l #2, %d0 | ||
136 | bclr.l #23, %d2 | ||
137 | seq.b %d0 | ||
138 | lsl.l #2, %d0 | ||
139 | bclr.l #15, %d2 | ||
140 | seq.b %d0 | ||
141 | lsl.l #2, %d0 | ||
142 | bclr.l #7, %d2 | ||
143 | seq.b %d0 | ||
144 | lsr.l #6, %d0 | ||
145 | move.w %d0, (%a3) | ||
146 | |||
147 | bclr.l #31, %d3 | ||
148 | seq.b %d0 | ||
149 | lsl.l #2, %d0 | ||
150 | bclr.l #23, %d3 | ||
151 | seq.b %d0 | ||
152 | lsl.l #2, %d0 | ||
153 | bclr.l #15, %d3 | ||
154 | seq.b %d0 | ||
155 | lsl.l #2, %d0 | ||
156 | bclr.l #7, %d3 | ||
157 | seq.b %d0 | ||
158 | lsr.l #6, %d0 | ||
159 | move.w %d0, (%a3) | ||
112 | 160 | ||
113 | add.l %d4, %d3 /* p0 += v0; p1 += v1; */ | 161 | bclr.l #31, %d4 |
114 | move.b %d3, (2, %a0) /* store p1 */ | 162 | seq.b %d0 |
115 | swap %d3 | 163 | lsl.l #2, %d0 |
116 | move.b %d3, (%a0) /* store p0 */ | 164 | bclr.l #23, %d4 |
117 | 165 | seq.b %d0 | |
118 | move.l %d2, %d3 /* copy mask */ | 166 | lsl.l #2, %d0 |
119 | and.l %d5, %d3 /* %d3 = p2--p3-- */ | 167 | bclr.l #15, %d4 |
120 | eor.l %d3, %d5 /* %d5 = --v2--v3 */ | 168 | seq.b %d0 |
121 | lsr.l #8, %d3 /* %d3 = --p2--p3 */ | 169 | lsl.l #2, %d0 |
122 | 170 | bclr.l #7, %d4 | |
123 | bclr.l #23, %d3 /* Z = !(p2 & 0x80); p2 &= ~0x80; */ | 171 | seq.b %d0 |
124 | seq.b %d1 /* %d1 = ....................001122222222 */ | 172 | lsr.l #6, %d0 |
125 | lsl.l #2, %d1 /* %d1 = ..................001122222222.. */ | 173 | move.w %d0, (%a3) |
126 | bclr.l #7, %d3 /* Z = !(p3 & 0x80); p3 &= ~0x80; */ | 174 | |
127 | seq.b %d1 /* %d1 = ..................00112233333333 */ | 175 | bclr.l #31, %d5 |
128 | lsr.l #6, %d1 /* %d1 = ........................00112233 */ | 176 | seq.b %d0 |
129 | 177 | lsl.l #2, %d0 | |
130 | add.l %d5, %d3 /* p2 += v2; p3 += v3; */ | 178 | bclr.l #23, %d5 |
131 | move.b %d3, (6, %a0) /* store p3 */ | 179 | seq.b %d0 |
132 | swap %d3 | 180 | lsl.l #2, %d0 |
133 | move.b %d3, (4, %a0) /* store p2 */ | 181 | bclr.l #15, %d5 |
134 | 182 | seq.b %d0 | |
135 | move.w %d1, (%a1) /* write pixel block */ | 183 | lsl.l #2, %d0 |
136 | addq.l #8, %a0 /* advance address pointer */ | 184 | bclr.l #7, %d5 |
137 | subq.l #1, %d0 /* any blocks left? */ | 185 | seq.b %d0 |
138 | bne.b .greyloop | 186 | lsr.l #6, %d0 |
139 | 187 | move.w %d0, (%a3) | |
140 | movem.l (%sp), %d2-%d5 | 188 | |
141 | lea.l (4*4, %sp), %sp | 189 | movem.l (%a0), %d0/%a4-%a6 |
190 | lea.l (16, %a0), %a0 | ||
191 | add.l %d0, %d2 | ||
192 | add.l %a4, %d3 | ||
193 | add.l %a5, %d4 | ||
194 | add.l %a6, %d5 | ||
195 | movem.l %d2-%d5, (%a1) | ||
196 | lea.l (16, %a1), %a1 | ||
197 | |||
198 | cmp.l %a1, %d1 /* go up to last line bound */ | ||
199 | bhi.w .g_lloop | ||
200 | |||
201 | cmp.l %a1, %a2 | ||
202 | bls.s .g_no_tail | ||
203 | |||
204 | .g_tloop: | ||
205 | move.l (%a1), %d2 | ||
206 | |||
207 | bclr.l #31, %d2 | ||
208 | seq.b %d0 | ||
209 | lsl.l #2, %d0 | ||
210 | bclr.l #23, %d2 | ||
211 | seq.b %d0 | ||
212 | lsl.l #2, %d0 | ||
213 | bclr.l #15, %d2 | ||
214 | seq.b %d0 | ||
215 | lsl.l #2, %d0 | ||
216 | bclr.l #7, %d2 | ||
217 | seq.b %d0 | ||
218 | lsr.l #6, %d0 | ||
219 | move.w %d0, (%a3) | ||
220 | |||
221 | add.l (%a0)+, %d2 /* go up to end address */ | ||
222 | move.l %d2, (%a1)+ | ||
223 | |||
224 | cmp.l %a1, %a2 | ||
225 | bhi.s .g_tloop | ||
226 | |||
227 | .g_no_tail: | ||
228 | movem.l (%sp), %d2-%d5/%a2-%a6 /* restore registers */ | ||
229 | lea.l (9*4, %sp), %sp | ||
142 | rts | 230 | rts |
231 | |||
143 | .gd_end: | 232 | .gd_end: |
144 | .size lcd_grey_data,.gd_end-lcd_grey_data | 233 | .size lcd_grey_data,.gd_end-lcd_grey_data |
diff --git a/firmware/target/coldfire/iaudio/m5/lcd-m5.c b/firmware/target/coldfire/iaudio/m5/lcd-m5.c index 4f963795c7..be9d5a39b8 100644 --- a/firmware/target/coldfire/iaudio/m5/lcd-m5.c +++ b/firmware/target/coldfire/iaudio/m5/lcd-m5.c | |||
@@ -171,10 +171,13 @@ void lcd_blit(const unsigned char* data, int x, int by, int width, | |||
171 | } | 171 | } |
172 | } | 172 | } |
173 | 173 | ||
174 | /* Helper function for lcd_grey_phase_blit(). */ | ||
175 | void lcd_grey_data(unsigned char *values, unsigned char *phases, int count); | ||
176 | |||
174 | /* Performance function that works with an external buffer | 177 | /* Performance function that works with an external buffer |
175 | note that by and bheight are in 4-pixel units! */ | 178 | note that by and bheight are in 4-pixel units! */ |
176 | void lcd_grey_phase_blit(const struct grey_data *data, int x, int by, | 179 | void lcd_grey_phase_blit(unsigned char *values, unsigned char *phases, |
177 | int width, int bheight, int stride) | 180 | int x, int by, int width, int bheight, int stride) |
178 | { | 181 | { |
179 | stride <<= 2; /* 4 pixels per block */ | 182 | stride <<= 2; /* 4 pixels per block */ |
180 | while (bheight--) | 183 | while (bheight--) |
@@ -182,8 +185,9 @@ void lcd_grey_phase_blit(const struct grey_data *data, int x, int by, | |||
182 | lcd_write_command_ex(LCD_CNTL_PAGE, by++, -1); | 185 | lcd_write_command_ex(LCD_CNTL_PAGE, by++, -1); |
183 | lcd_write_command_ex(LCD_CNTL_COLUMN, x, -1); | 186 | lcd_write_command_ex(LCD_CNTL_COLUMN, x, -1); |
184 | lcd_write_command(LCD_CNTL_DATA_WRITE); | 187 | lcd_write_command(LCD_CNTL_DATA_WRITE); |
185 | lcd_grey_data(data, width); | 188 | lcd_grey_data(values, phases, width); |
186 | data += stride; | 189 | values += stride; |
190 | phases += stride; | ||
187 | } | 191 | } |
188 | } | 192 | } |
189 | 193 | ||