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sim: erc32: fix -Wimplicit-fallthrough warnings

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Add the attribute where it seems to make sense.
This commit is contained in:
Mike Frysinger 2023-12-21 01:31:38 -05:00
parent b356d0c5a0
commit fcad8e6ba7
3 changed files with 12 additions and 0 deletions
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1
sim/erc32/erc32.c
View File

@ -799,6 +799,7 @@ mec_write(uint32_t addr, uint32_t data)
case MEC_UARTA:
case MEC_UARTB:
if (data & 0xFFFFFF00) mecparerror();
ATTRIBUTE_FALLTHROUGH;
case MEC_UART_CTRL:
if (data & 0xFF00FF00) mecparerror();
write_uart(addr, data);

10
sim/erc32/exec.c
View File

@ -1220,6 +1220,7 @@ dispatch_instruction(struct pstate *sregs)
switch (op3) {
case LDDA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case LDD:
if (address & 0x7) {
sregs->trap = TRAP_UNALI;
@ -1250,6 +1251,7 @@ dispatch_instruction(struct pstate *sregs)
case LDA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case LD:
if (address & 0x3) {
sregs->trap = TRAP_UNALI;
@ -1265,6 +1267,7 @@ dispatch_instruction(struct pstate *sregs)
break;
case LDSTUBA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case LDSTUB:
mexc = memory_read(asi, address, &data, 0, &ws);
sregs->hold += ws;
@ -1288,6 +1291,7 @@ dispatch_instruction(struct pstate *sregs)
case LDSBA:
case LDUBA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case LDSB:
case LDUB:
mexc = memory_read(asi, address, &data, 0, &ws);
@ -1305,6 +1309,7 @@ dispatch_instruction(struct pstate *sregs)
case LDSHA:
case LDUHA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case LDSH:
case LDUH:
if (address & 0x1) {
@ -1426,6 +1431,7 @@ dispatch_instruction(struct pstate *sregs)
case STA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case ST:
if (address & 0x3) {
sregs->trap = TRAP_UNALI;
@ -1439,6 +1445,7 @@ dispatch_instruction(struct pstate *sregs)
break;
case STBA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case STB:
mexc = memory_write(asi, address, rdd, 0, &ws);
sregs->hold += ws;
@ -1448,6 +1455,7 @@ dispatch_instruction(struct pstate *sregs)
break;
case STDA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case STD:
if (address & 0x7) {
sregs->trap = TRAP_UNALI;
@ -1505,6 +1513,7 @@ dispatch_instruction(struct pstate *sregs)
break;
case STHA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case STH:
if (address & 0x1) {
sregs->trap = TRAP_UNALI;
@ -1561,6 +1570,7 @@ dispatch_instruction(struct pstate *sregs)
break;
case SWAPA:
if (!chk_asi(sregs, &asi, op3)) break;
ATTRIBUTE_FALLTHROUGH;
case SWAP:
if (address & 0x3) {
sregs->trap = TRAP_UNALI;

1
sim/erc32/sis.c
View File

@ -281,6 +281,7 @@ main(int argc, char **argv)
break;
case CTRL_C:
printf("\b\bInterrupt!\n");
ATTRIBUTE_FALLTHROUGH;
case TIME_OUT:
printf(" Stopped at time %" PRIu64 " (%.3f ms)\n", ebase.simtime,
((double) ebase.simtime / (double) sregs.freq) / 1000.0);