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SekRunPS Cyclone integration

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@68 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-03-14 17:59:53 +00:00
parent 8b71d0ebf9
commit 7336a99a49
12 changed files with 278 additions and 47 deletions
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29
cpu/Cyclone/Main.cpp
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@ -93,7 +93,7 @@ void CheckInterrupt(int op)
ot(" ldrleb r1,[r7,#0x44] ;@ Get SR high: T_S__III\n");
ot(" andle r1,r1,#7 ;@ Get interrupt mask\n");
ot(" cmple r0,r1 ;@ irq<=6: Is irq<=mask ?\n");
ot(" blgt DoInterrupt\n");
ot(" blgt CycloneDoInterrupt\n");
ot("NoInts%x%s\n", op,ms?"":":");
ot("\n");
}
@ -109,7 +109,7 @@ static void PrintFramework()
ot(" mov r7,r0 ;@ r7 = Pointer to Cpu Context\n");
ot(" ;@ r0-3 = Temporary registers\n");
ot(" ldrb r9,[r7,#0x46] ;@ r9 = Flags (NZCV)\n");
ot(" ldr r6,=JumpTab ;@ r6 = Opcode Jump table\n");
ot(" ldr r6,=CycloneJumpTab ;@ r6 = Opcode Jump table\n");
ot(" ldr r5,[r7,#0x5c] ;@ r5 = Cycles\n");
ot(" ldr r4,[r7,#0x40] ;@ r4 = Current PC + Memory Base\n");
ot(" ;@ r8 = Current Opcode\n");
@ -124,7 +124,7 @@ static void PrintFramework()
ot(" ldrleb r1,[r7,#0x44] ;@ Get SR high: T_S__III\n");
ot(" andle r1,r1,#7 ;@ Get interrupt mask\n");
ot(" cmple r0,r1 ;@ irq<=6: Is irq<=mask ?\n");
ot(" blgt DoInterrupt\n");
ot(" blgt CycloneDoInterrupt\n");
ot(";@ Check if interrupt used up all the cycles:\n");
ot(" subs r5,r5,#0\n");
ot(" blt CycloneEndNoBack\n");
@ -143,7 +143,14 @@ static void PrintFramework()
ot("CycloneEnd%s\n", ms?"":":");
ot(" sub r4,r4,#2\n");
ot("CycloneEndNoBack%s\n", ms?"":":");
#ifdef CYCLONE_FOR_PICODRIVE
ot(" ldr r1,[r7,#0x54]\n");
ot(" mov r9,r9,lsr #28\n");
ot(" tst r1,r1\n");
ot(" bxne r1 ;@ jump to alternative CycloneEnd\n");
#else
ot(" mov r9,r9,lsr #28\n");
#endif
ot(" str r4,[r7,#0x40] ;@ Save Current PC + Memory Base\n");
ot(" str r5,[r7,#0x5c] ;@ Save Cycles\n");
ot(" strb r9,[r7,#0x46] ;@ Save Flags (NZCV)\n");
@ -161,7 +168,7 @@ static void PrintFramework()
ot(";@ uncompress jump table\n");
if (ms) ot("CycloneInit\n");
else ot("CycloneInit:\n");
ot(" ldr r12,=JumpTab\n");
ot(" ldr r12,=CycloneJumpTab\n");
ot(" add r0,r12,#0xe000*4 ;@ ctrl code pointer\n");
ot(" ldr r1,[r0,#-4]\n");
ot(" tst r1,r1\n");
@ -187,7 +194,7 @@ static void PrintFramework()
ot(" bgt unc_loop_in\n");
ot(" b unc_loop\n");
ot("unc_finish%s\n", ms?"":":");
ot(" ldr r12,=JumpTab\n");
ot(" ldr r12,=CycloneJumpTab\n");
ot(" ;@ set a-line and f-line handlers\n");
ot(" add r0,r12,#0xa000*4\n");
ot(" ldr r1,[r0,#4] ;@ a-line handler\n");
@ -255,7 +262,7 @@ static void PrintFramework()
ot("\n");
ot(";@ DoInterrupt - r0=IRQ number\n");
ot("DoInterrupt%s\n", ms?"":":");
ot("CycloneDoInterrupt%s\n", ms?"":":");
ot(" stmdb sp!,{lr} ;@ Push ARM return address\n");
ot(";@ Get IRQ Vector address:\n");
@ -475,7 +482,7 @@ static void PrintJumpTable()
// space for decompressed table
ot(ms?" area |.data|, data\n":" .data\n .align 4\n\n");
ot("JumpTab%s\n", ms?"":":");
ot("CycloneJumpTab%s\n", ms?"":":");
if(ms) {
for(i = 0; i < 0xa000/8; i++)
ot(" dcd 0,0,0,0,0,0,0,0\n");
@ -548,7 +555,7 @@ static void PrintJumpTable()
ot("\n");
free(indexes);
#else
ot("JumpTab%s\n", ms?"":":");
ot("CycloneJumpTab%s\n", ms?"":":");
len=0xfffe; // Hmmm, armasm 2.50.8684 messes up with a 0x10000 long jump table
// notaz: same thing with GNU as 2.9-psion-98r2 (reloc overflow)
// this is due to COFF objects using only 2 bytes for reloc count
@ -613,6 +620,10 @@ static int CycloneMake()
ot(" .global CycloneSetSr\n");
ot(" .global CycloneGetSr\n");
ot(" .global CycloneVer\n");
#ifdef CYCLONE_FOR_PICODRIVE
ot(" .global CycloneDoInterrupt\n");
ot(" .global CycloneJumpTab\n");
#endif
ot("CycloneVer: .long 0x%.4x\n",CycloneVer);
}
ot("\n");
@ -623,6 +634,8 @@ static int CycloneMake()
if (ms) ot(" END\n");
ot("\n\n;@ vim:filetype=armasm\n");
fclose(AsmFile); AsmFile=NULL;
#if 0