haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

target-tricore: add context managment trap generation

Browse source 
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <1455889426-1923-3-git-send-email-kbastian@mail.uni-paderborn.de>
This commit is contained in:
Bastian Koppelmann 2016-02-19 14:43:44 +01:00
parent 518d7fd2a0
commit 3292b4477f
1 changed files with 30 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
target-tricore/op_helper.c
View file

@ -102,6 +102,12 @@ void helper_raise_exception_sync(CPUTriCoreState *env, uint32_t class,
raise_exception_sync_internal(env, class, tin, 0, 0);
}
static void raise_exception_sync_helper(CPUTriCoreState *env, uint32_t class,
uint32_t tin, uintptr_t pc)
{
raise_exception_sync_internal(env, class, tin, pc, 0);
}
/* Addressing mode helper */
static uint16_t reverse16(uint16_t val)
@ -2450,11 +2456,13 @@ void helper_call(CPUTriCoreState *env, uint32_t next_pc)
/* if (FCX == 0) trap(FCU); */
if (env->FCX == 0) {
/* FCU trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_FCU, GETPC());
}
/* if (PSW.CDE) then if (cdc_increment()) then trap(CDO); */
if (psw & MASK_PSW_CDE) {
if (cdc_increment(&psw)) {
/* CDO trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_CDO, GETPC());
}
}
/* PSW.CDE = 1;*/
@ -2490,6 +2498,7 @@ void helper_call(CPUTriCoreState *env, uint32_t next_pc)
/* if (tmp_FCX == LCX) trap(FCD);*/
if (tmp_FCX == env->LCX) {
/* FCD trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_FCD, GETPC());
}
psw_write(env, psw);
}
@ -2502,18 +2511,25 @@ void helper_ret(CPUTriCoreState *env)
psw = psw_read(env);
/* if (PSW.CDE) then if (cdc_decrement()) then trap(CDU);*/
if (env->PSW & MASK_PSW_CDE) {
if (cdc_decrement(&(env->PSW))) {
if (psw & MASK_PSW_CDE) {
if (cdc_decrement(&psw)) {
/* CDU trap */
psw_write(env, psw);
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_CDU, GETPC());
}
}
/* if (PCXI[19: 0] == 0) then trap(CSU); */
if ((env->PCXI & 0xfffff) == 0) {
/* CSU trap */
psw_write(env, psw);
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_CSU, GETPC());
}
/* if (PCXI.UL == 0) then trap(CTYP); */
if ((env->PCXI & MASK_PCXI_UL) == 0) {
/* CTYP trap */
cdc_increment(&psw); /* restore to the start of helper */
psw_write(env, psw);
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_CTYP, GETPC());
}
/* PC = {A11 [31: 1], 1’b0}; */
env->PC = env->gpr_a[11] & 0xfffffffe;
@ -2548,6 +2564,7 @@ void helper_bisr(CPUTriCoreState *env, uint32_t const9)
if (env->FCX == 0) {
/* FCU trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_FCU, GETPC());
}
tmp_FCX = env->FCX;
@ -2579,6 +2596,7 @@ void helper_bisr(CPUTriCoreState *env, uint32_t const9)
if (tmp_FCX == env->LCX) {
/* FCD trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_FCD, GETPC());
}
}
@ -2590,14 +2608,17 @@ void helper_rfe(CPUTriCoreState *env)
/* if (PCXI[19: 0] == 0) then trap(CSU); */
if ((env->PCXI & 0xfffff) == 0) {
/* raise csu trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_CSU, GETPC());
}
/* if (PCXI.UL == 0) then trap(CTYP); */
if ((env->PCXI & MASK_PCXI_UL) == 0) {
/* raise CTYP trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_CTYP, GETPC());
}
/* if (!cdc_zero() AND PSW.CDE) then trap(NEST); */
if (!cdc_zero(&(env->PSW)) && (env->PSW & MASK_PSW_CDE)) {
/* raise MNG trap */
/* raise NEST trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_NEST, GETPC());
}
env->PC = env->gpr_a[11] & ~0x1;
/* ICR.IE = PCXI.PIE; */
@ -2673,6 +2694,7 @@ void helper_svlcx(CPUTriCoreState *env)
if (env->FCX == 0) {
/* FCU trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_FCU, GETPC());
}
/* tmp_FCX = FCX; */
tmp_FCX = env->FCX;
@ -2703,6 +2725,7 @@ void helper_svlcx(CPUTriCoreState *env)
/* if (tmp_FCX == LCX) trap(FCD);*/
if (tmp_FCX == env->LCX) {
/* FCD trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_FCD, GETPC());
}
}
@ -2714,6 +2737,7 @@ void helper_svucx(CPUTriCoreState *env)
if (env->FCX == 0) {
/* FCU trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_FCU, GETPC());
}
/* tmp_FCX = FCX; */
tmp_FCX = env->FCX;
@ -2744,6 +2768,7 @@ void helper_svucx(CPUTriCoreState *env)
/* if (tmp_FCX == LCX) trap(FCD);*/
if (tmp_FCX == env->LCX) {
/* FCD trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_FCD, GETPC());
}
}
@ -2754,10 +2779,12 @@ void helper_rslcx(CPUTriCoreState *env)
/* if (PCXI[19: 0] == 0) then trap(CSU); */
if ((env->PCXI & 0xfffff) == 0) {
/* CSU trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_CSU, GETPC());
}
/* if (PCXI.UL == 1) then trap(CTYP); */
if ((env->PCXI & MASK_PCXI_UL) != 0) {
/* CTYP trap */
raise_exception_sync_helper(env, TRAPC_CTX_MNG, TIN3_CTYP, GETPC());
}
/* EA = {PCXI.PCXS, 6'b0, PCXI.PCXO, 6'b0}; */
ea = ((env->PCXI & MASK_PCXI_PCXS) << 12) +