Difference between revisions of "SP0256-012"
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<caption>Microsequencer Registers</caption> | <caption>Microsequencer Registers</caption> | ||
| − | <tr><td>[[SP0256 | + | <tr><td>[[SP0256 Program Counter|PC]]</td><td>16-bit program counter</td></tr> |
| − | <tr><td>[[SP0256 | + | <tr><td>[[SP0256 Page Prefix|PAGE]]</td><td>4-bit address extension register</td></tr> |
| − | <tr><td>[[SP0256 | + | <tr><td>[[SP0256 Coefficient Mode|MODE]]</td><td>2-bit precision select, register-set select</td></tr> |
| − | <tr><td>[[SP0256 RPT| | + | <tr><td>[[SP0256 Repeat Prefix|RPT PFX]]</td><td>2-bit repeat count prefix</td></tr> |
| + | <tr><td>[[SP0256 Stack|STACK]]</td><td>16-bit 1-deep address stack</td></tr> | ||
| + | <tr><td>[[SP0256 Command Address|COMMAND]]</td><td>8-bit pending command from [[SP0256 Address Load|ALD]]</td></tr> | ||
</table> | </table> | ||
<br/><br/> | <br/><br/> | ||
| Line 35: | Line 37: | ||
<tr><td>[[SP0256 Amplitude Interpolation Register|AI]]</td><td>Amplitude Interpolation Register</td></tr> | <tr><td>[[SP0256 Amplitude Interpolation Register|AI]]</td><td>Amplitude Interpolation Register</td></tr> | ||
<tr><td>[[SP0256 Pitch Interpolation Register|PI]]</td><td>Pitch Interpolation Register</td></tr> | <tr><td>[[SP0256 Pitch Interpolation Register|PI]]</td><td>Pitch Interpolation Register</td></tr> | ||
| + | <tr><td>[[SP0256 Repeat Count|RPT]]</td><td>6-bit Repeat Count</td></tr> | ||
</table> | </table> | ||
Revision as of 22:33, 18 January 2005
Overview
| Clock Speed | 1.6Mhz |
General Behavior
TBD
Registers
| PC | 16-bit program counter |
| PAGE | 4-bit address extension register |
| MODE | 2-bit precision select, register-set select |
| RPT PFX | 2-bit repeat count prefix |
| STACK | 16-bit 1-deep address stack |
| COMMAND | 8-bit pending command from ALD |
| B0 | Stage 0 Bandwidth Coefficient |
| B1 | Stage 1 Bandwidth Coefficient |
| B2 | Stage 2 Bandwidth Coefficient |
| B3 | Stage 3 Bandwidth Coefficient |
| B4 | Stage 4 Bandwidth Coefficient |
| B5 | Stage 5 Bandwidth Coefficient |
| F0 | Stage 0 Frequency Coefficient |
| F1 | Stage 1 Frequency Coefficient |
| F2 | Stage 2 Frequency Coefficient |
| F3 | Stage 3 Frequency Coefficient |
| F4 | Stage 4 Frequency Coefficient |
| F5 | Stage 5 Frequency Coefficient |
| A | Amplitude Register |
| P | Pitch Register |
| AI | Amplitude Interpolation Register |
| PI | Pitch Interpolation Register |
| RPT | 6-bit Repeat Count |
Instruction Set
| Range | Opcode |
|---|---|
| $00 | RTS |
| $01-$0F | SETPAGE |
| $10-$1F | LOADALL |
| $20-$2F | LOAD_2 |
| $30-$3F | SETMSB_3 |
| $40-$4F | LOAD_4 |
| $50-$5F | SETMSB_5 |
| $60-$6F | SETMSB_6 |
| $70-$7F | JMP |
| $80-$8F | SETMODE |
| $90-$9F | DELTA_9 |
| $A0-$AF | SETMSB_A |
| $B0-$BF | JSR |
| $C0-$CF | LOAD_C |
| $D0-$DF | DELTA_D |
| $E0-$EF | LOAD_E |
| $F0-$FF | PAUSE |
