shader/jit: implement breakc
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09982c3386
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9060e08e49
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@ -33,70 +33,70 @@ namespace Shader {
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typedef void (JitShader::*JitFunction)(Instruction instr);
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const JitFunction instr_table[64] = {
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&JitShader::Compile_ADD, // add
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&JitShader::Compile_DP3, // dp3
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&JitShader::Compile_DP4, // dp4
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&JitShader::Compile_DPH, // dph
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nullptr, // unknown
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&JitShader::Compile_EX2, // ex2
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&JitShader::Compile_LG2, // lg2
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nullptr, // unknown
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&JitShader::Compile_MUL, // mul
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&JitShader::Compile_SGE, // sge
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&JitShader::Compile_SLT, // slt
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&JitShader::Compile_FLR, // flr
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&JitShader::Compile_MAX, // max
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&JitShader::Compile_MIN, // min
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&JitShader::Compile_RCP, // rcp
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&JitShader::Compile_RSQ, // rsq
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nullptr, // unknown
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nullptr, // unknown
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&JitShader::Compile_MOVA, // mova
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&JitShader::Compile_MOV, // mov
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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&JitShader::Compile_DPH, // dphi
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nullptr, // unknown
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&JitShader::Compile_SGE, // sgei
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&JitShader::Compile_SLT, // slti
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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&JitShader::Compile_NOP, // nop
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&JitShader::Compile_END, // end
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nullptr, // break
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&JitShader::Compile_CALL, // call
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&JitShader::Compile_CALLC, // callc
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&JitShader::Compile_CALLU, // callu
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&JitShader::Compile_IF, // ifu
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&JitShader::Compile_IF, // ifc
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&JitShader::Compile_LOOP, // loop
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&JitShader::Compile_EMIT, // emit
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&JitShader::Compile_SETE, // sete
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&JitShader::Compile_JMP, // jmpc
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&JitShader::Compile_JMP, // jmpu
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&JitShader::Compile_CMP, // cmp
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&JitShader::Compile_CMP, // cmp
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_ADD, // add
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&JitShader::Compile_DP3, // dp3
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&JitShader::Compile_DP4, // dp4
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&JitShader::Compile_DPH, // dph
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nullptr, // unknown
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&JitShader::Compile_EX2, // ex2
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&JitShader::Compile_LG2, // lg2
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nullptr, // unknown
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&JitShader::Compile_MUL, // mul
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&JitShader::Compile_SGE, // sge
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&JitShader::Compile_SLT, // slt
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&JitShader::Compile_FLR, // flr
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&JitShader::Compile_MAX, // max
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&JitShader::Compile_MIN, // min
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&JitShader::Compile_RCP, // rcp
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&JitShader::Compile_RSQ, // rsq
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nullptr, // unknown
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nullptr, // unknown
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&JitShader::Compile_MOVA, // mova
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&JitShader::Compile_MOV, // mov
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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&JitShader::Compile_DPH, // dphi
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nullptr, // unknown
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&JitShader::Compile_SGE, // sgei
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&JitShader::Compile_SLT, // slti
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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nullptr, // unknown
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&JitShader::Compile_NOP, // nop
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&JitShader::Compile_END, // end
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&JitShader::Compile_BREAKC, // breakc
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&JitShader::Compile_CALL, // call
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&JitShader::Compile_CALLC, // callc
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&JitShader::Compile_CALLU, // callu
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&JitShader::Compile_IF, // ifu
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&JitShader::Compile_IF, // ifc
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&JitShader::Compile_LOOP, // loop
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&JitShader::Compile_EMIT, // emit
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&JitShader::Compile_SETE, // sete
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&JitShader::Compile_JMP, // jmpc
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&JitShader::Compile_JMP, // jmpu
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&JitShader::Compile_CMP, // cmp
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&JitShader::Compile_CMP, // cmp
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // madi
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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&JitShader::Compile_MAD, // mad
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};
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// The following is used to alias some commonly used registers. Generally, RAX-RDX and XMM0-XMM3 can
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@ -584,6 +584,14 @@ void JitShader::Compile_END(Instruction instr) {
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ret();
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}
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void JitShader::Compile_BREAKC(Instruction instr) {
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Compile_Assert(looping, "BREAKC must be inside a LOOP");
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if (looping) {
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Compile_EvaluateCondition(instr);
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jnz(*loop_break_label);
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}
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}
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void JitShader::Compile_CALL(Instruction instr) {
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// Push offset of the return
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push(qword, (instr.flow_control.dest_offset + instr.flow_control.num_instructions));
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@ -727,11 +735,14 @@ void JitShader::Compile_LOOP(Instruction instr) {
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Label l_loop_start;
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L(l_loop_start);
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loop_break_label = Xbyak::Label();
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Compile_Block(instr.flow_control.dest_offset + 1);
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add(LOOPCOUNT_REG, LOOPINC); // Increment LOOPCOUNT_REG by Z-component
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sub(LOOPCOUNT, 1); // Increment loop count by 1
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jnz(l_loop_start); // Loop if not equal
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L(*loop_break_label);
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loop_break_label = boost::none;
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looping = false;
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}
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@ -8,6 +8,7 @@
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#include <cstddef>
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#include <utility>
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#include <vector>
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#include <boost/optional.hpp>
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#include <nihstro/shader_bytecode.h>
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#include <xbyak.h>
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#include "common/bit_set.h"
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@ -58,6 +59,7 @@ public:
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void Compile_MOV(Instruction instr);
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void Compile_NOP(Instruction instr);
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void Compile_END(Instruction instr);
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void Compile_BREAKC(Instruction instr);
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void Compile_CALL(Instruction instr);
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void Compile_CALLC(Instruction instr);
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void Compile_CALLU(Instruction instr);
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@ -119,6 +121,10 @@ private:
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/// Mapping of Pica VS instructions to pointers in the emitted code
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std::array<Xbyak::Label, MAX_PROGRAM_CODE_LENGTH> instruction_labels;
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/// Label pointing to the end of the current LOOP block. Used by the BREAKC instruction to break
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/// out of the loop.
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boost::optional<Xbyak::Label> loop_break_label;
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/// Offsets in code where a return needs to be inserted
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std::vector<unsigned> return_offsets;
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