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Line 93:
Line 93: − + Line 110:
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Line 245: − + − + Line 270:
Line 270: − + − + Line 395:
Line 395: − Registers are float[4] vectors.+
i0-i7 used for LOOP
|}
|}
Format 3 : (used for conditional flow control instructions)
Format 3 : (used for uniform-based conditional flow control instructions)
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x16
| 0x16
| 0x4
| 0x4
| Uniform boolean ID (BOOL)
| Uniform ID (BOOL/INT)
|-
|-
| 0x1A
| 0x1A
| 0x23
| 0x23
| 1
| 1
| BREAK?
| BREAK
| Conditionally breaks out of LOOP block ?
| Conditionally breaks out of LOOP block. Conditions for this are assumed to work the same was as for IF.
|-
|-
| 0x24
| 0x24
| 0x29
| 0x29
| 3
| 3
| LOOP?
| FORLOOP
| Loops over the code between itself and DST an unknown number of times. Possibly set by an integer uniform.
| Loops over the code between itself and DST. Increments lcnt after each loop. Stops looping once lcnt reaches the value contained by the integer uniform specified by INT. (i0-i7)
|-
|-
| 0x2A
| 0x2A
== Registers ==
== Registers ==
Most registers (all the ones within the 0x00-0x7F range) are float[4] vectors. There are also boolean registers (b0-b7) and integer registers (i0-i7). How the latter ones are set is as of yet unknown.
Attribute (input, RO) registers are located within the 0x0-0xF range. What data they are fed is specified by the CPU.
Attribute (input, RO) registers are located within the 0x0-0xF range. What data they are fed is specified by the CPU.