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Ported label linking and conditional jumps

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Maxime Chevalier-Boisvert 2020-09-11 15:10:16 -04:00 • committed by Alan Wu
parent 1c8fb90f6b
commit 6a12fb2067
3 changed files with 181 additions and 67 deletions
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41
ujit_asm.h
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@ -37,6 +37,10 @@ typedef struct CodeBlock
// Table of registered label addresses
size_t label_addrs[MAX_LABELS];
// Table of registered label names
// Note that these should be constant strings only
const char* label_names[MAX_LABELS];
// References to labels
labelref_t label_refs[MAX_LABEL_REFS];
@ -179,6 +183,10 @@ uint8_t* cb_get_ptr(codeblock_t* cb, size_t index);
void cb_write_byte(codeblock_t* cb, uint8_t byte);
void cb_write_bytes(codeblock_t* cb, size_t num_bytes, ...);
void cb_write_int(codeblock_t* cb, uint64_t val, size_t num_bits);
size_t cb_new_label(codeblock_t* cb, const char* name);
void cb_write_label(codeblock_t* cb, size_t label_idx);
void cb_label_ref(codeblock_t* cb, size_t label_idx);
void cb_link_labels(codeblock_t* cb);
// Ruby instruction prologue and epilogue functions
void cb_write_prologue(codeblock_t* cb);
@ -187,7 +195,38 @@ void cb_write_epilogue(codeblock_t* cb);
// Encode individual instructions into a code block
void add(codeblock_t* cb, x86opnd_t opnd0, x86opnd_t opnd1);
void call(codeblock_t* cb, x86opnd_t opnd);
void jmp(codeblock_t* cb, x86opnd_t opnd);
void ja(codeblock_t* cb, size_t label_idx);
void jae(codeblock_t* cb, size_t label_idx);
void jb(codeblock_t* cb, size_t label_idx);
void jbe(codeblock_t* cb, size_t label_idx);
void jc(codeblock_t* cb, size_t label_idx);
void je(codeblock_t* cb, size_t label_idx);
void jg(codeblock_t* cb, size_t label_idx);
void jge(codeblock_t* cb, size_t label_idx);
void jl(codeblock_t* cb, size_t label_idx);
void jle(codeblock_t* cb, size_t label_idx);
void jna(codeblock_t* cb, size_t label_idx);
void jnae(codeblock_t* cb, size_t label_idx);
void jnb(codeblock_t* cb, size_t label_idx);
void jnbe(codeblock_t* cb, size_t label_idx);
void jnc(codeblock_t* cb, size_t label_idx);
void jne(codeblock_t* cb, size_t label_idx);
void jng(codeblock_t* cb, size_t label_idx);
void jnge(codeblock_t* cb, size_t label_idx);
void jnl(codeblock_t* cb, size_t label_idx);
void jnle(codeblock_t* cb, size_t label_idx);
void jno(codeblock_t* cb, size_t label_idx);
void jnp(codeblock_t* cb, size_t label_idx);
void jns(codeblock_t* cb, size_t label_idx);
void jnz(codeblock_t* cb, size_t label_idx);
void jo(codeblock_t* cb, size_t label_idx);
void jp(codeblock_t* cb, size_t label_idx);
void jpe(codeblock_t* cb, size_t label_idx);
void jpo(codeblock_t* cb, size_t label_idx);
void js(codeblock_t* cb, size_t label_idx);
void jz(codeblock_t* cb, size_t label_idx);
void jmp(codeblock_t* cb, size_t label_idx);
void jmp_rm(codeblock_t* cb, x86opnd_t opnd);
void lea(codeblock_t* cb, x86opnd_t dst, x86opnd_t src);
void mov(codeblock_t* cb, x86opnd_t dst, x86opnd_t src);
void nop(codeblock_t* cb, size_t length);