86 lines
1.5 KiB
C++
86 lines
1.5 KiB
C++
/*
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* H_Branches.h
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*
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*
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*/
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#pragma once
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namespace ARM
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{
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inline static snat Literal(unat FnAddr)
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{
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u8* pc_addr = (u8*)EMIT_GET_PTR();
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return (snat)((snat)FnAddr - ((snat)pc_addr+8));
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//return -(snat)((pc_addr+8)-(snat)FnAddr);
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}
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EAPI CALL(unat FnAddr, ConditionCode CC=AL)
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{
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bool isThumb = FnAddr & 1;
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FnAddr &= ~1;
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snat lit = Literal(FnAddr);
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if(0==lit) {
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printf("Error, Compiler caught NULL literal, CALL(%08X)\n", FnAddr);
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verify(false);
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return;
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}
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if( (lit<-33554432) || (lit>33554428) ) // ..28 for BL ..30 for BLX
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{
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printf("Warning, CALL(%08X) is out of range for literal(%08X)\n", FnAddr, lit);
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// verify(false);
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MOV32(IP, FnAddr, CC);
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BLX(IP, CC);
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return;
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}
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if (isThumb) {
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verify (CC==CC_EQ);
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BLX(lit, isThumb);
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} else {
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BL(lit,CC);
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}
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}
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EAPI JUMP(unat FnAddr, ConditionCode CC=AL)
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{
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bool isThumb = FnAddr & 1;
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FnAddr &= ~1;
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verify(!isThumb);
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snat lit = Literal(FnAddr);
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/*if(0==lit) {
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printf("Error, Compiler caught NULL literal, JUMP(%08X)\n", FnAddr);
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verify(false);
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return;
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}*/
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if( (lit<-33554432) || (lit>33554428) ) // ..28 for BL ..30 for BLX
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{
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printf("Warning, %X is out of range for imm jump! \n", FnAddr);
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//verify(false);
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MOV32(IP, FnAddr, CC);
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BX(IP, CC);
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return;
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}
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B(lit,CC); // Note, wont work for THUMB*, have to use bx which is reg only !
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}
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}
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