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sh2 drc: cleanup, fix for drc crash, for mips code emitter

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This commit is contained in:
kub 2019-12-11 20:16:14 +01:00
parent 9760505eaf
commit 90b1c9db91
12 changed files with 151 additions and 120 deletions
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11
platform/common/dismips.c
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@ -6,8 +6,9 @@
* See COPYING file in the top-level directory.
*/
// XXX unimplemented: SYSCALL, BREAK, SYNC, SDBBP, T*, CACHE, PREF,
// MOVF/MOVT, LWC*/LDC*, SWC*/SDC*, COP*.
// unimplemented insns: MOV[FT], SYSCALL, BREAK, SYNC, SYNCI, T*, SDBBP, RDHWR,
// CACHE, PREF, LWC*/LDC*, SWC*/SDC*, and all of COP* (fpu, mmu, irq, exc, ...)
// unimplemented variants of insns: EHB, SSNOP (both SLL zero), JALR.HB, JR.HB
// however, it's certainly good enough for anything picodrive DRC throws at it.
#include <stdio.h>
@ -79,6 +80,7 @@ struct insn {
#define OP_SPECIAL 0x00
static const struct insn special_insns[] = {
{0x00, S_IMM_DT, "sll"},
// {0x01, , "movf\0movt"},
{0x02, S_IMM_DT|SR_BIT, "srl\0rotr"},
{0x03, S_IMM_DT, "sra"},
{0x04, REG_DTS, "sllv"},
@ -146,6 +148,7 @@ static const struct insn special2_insns[] = {
{0x21, REG_DS, "clo" },
{0x24, REG_DS, "dclz" },
{0x25, REG_DS, "dclo" },
// {0x37, , "sdbbp" },
};
// instructions with opcode SPECIAL3 (R-type)
@ -159,6 +162,7 @@ static const struct insn special3_insns[] = {
{0x05, F_IMM_TS, "dinsm" },
{0x06, F_IMM_TS, "dinsu" },
{0x07, F_IMM_TS, "dins" },
// {0x3b, , "rdhwr" },
};
// instruction with opcode SPECIAL3 and function *BSHFL
@ -192,6 +196,7 @@ static const struct insn regimm_insns[] = {
{0x12, B_IMM_S, "bltzall"},
{0x13, B_IMM_S, "bgezall"},
{0x13, B_IMM_S, "bgezall"},
// {0x1f, , "synci" },
};
// instructions with other opcodes (I-type)
@ -316,7 +321,7 @@ static unsigned long j_target(unsigned long pc, uint32_t insn)
}
// main disassembler function
int dismips(uintptr_t pc, uint32_t insn, char *buf, size_t buflen, uintptr_t *sym)
int dismips(uintptr_t pc, uint32_t insn, char *buf, size_t buflen, unsigned long *sym)
{
const struct insn *pi = decode_insn(insn);
char *rs = register_names[(insn >> 21) & 0x1f];