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bugfixs in movw opcodes

This commit is contained in:
IniKiwi 2022-08-16 11:03:40 +02:00
parent 5742e7c257
commit 4bf74d7664
1 changed files with 3 additions and 3 deletions
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6
src/instructions/movw.c
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@ -2,13 +2,13 @@
#include <instructions/instructions.h>
void instruction_movw_r0_disp_r(cpu_status_t* status){
long disp = (0x0000000F & (long)status->r[LO_NIBBLE(cpu_read8(status,status->pc+1))]);
long disp = (0x0000000F & (long)LO_NIBBLE(cpu_read8(status,status->pc+1)));
cpu_write16(status, status->r[HI_NIBBLE(cpu_read8(status,status->pc+1))] + (disp << 1), status->r[0]);
status->pc += 2;
}
void instruction_movw_disp_r_r0(cpu_status_t* status){
long disp = (0x0000000F & (long)status->r[LO_NIBBLE(cpu_read8(status,status->pc+1))]);
long disp = (0x0000000F & (long)LO_NIBBLE(cpu_read8(status,status->pc+1)));
status->r[0] = cpu_read16(status, status->r[HI_NIBBLE(cpu_read8(status,status->pc+1))] + (disp << 1));
if ((status->r[0] & 0x8000) == 0)
@ -91,6 +91,6 @@ void instruction_movw_disp_gbr_r0(cpu_status_t* status){
}
void instruction_movw_r_r0_r(cpu_status_t* status){
cpu_write16(status, status->r[LO_NIBBLE(cpu_read8(status,status->pc))] + status->r[0], status->r[LO_NIBBLE(cpu_read8(status,status->pc))]);
cpu_write16(status, status->r[LO_NIBBLE(cpu_read8(status,status->pc))] + status->r[0], status->r[HI_NIBBLE(cpu_read8(status,status->pc+1))]);
status->pc += 2;
}